-
Query Builder Class
-
CodeIgniter gives you access to a Query Builder class. This pattern
-allows information to be retrieved, inserted, and updated in your
-database with minimal scripting. In some cases only one or two lines
-of code are necessary to perform a database action.
-CodeIgniter does not require that each database table be its own class
-file. It instead provides a more simplified interface.
-
Beyond simplicity, a major benefit to using the Query Builder features
-is that it allows you to create database independent applications, since
-the query syntax is generated by each database adapter. It also allows
-for safer queries, since the values are escaped automatically by the
-system.
-
-
Note
-
If you intend to write your own queries you can disable this
-class in your database config file, allowing the core database library
-and adapter to utilize fewer resources.
-
-
-
-
-
The following functions allow you to build SQL SELECT statements.
-
$this->db->get()
-
Runs the selection query and returns the result. Can be used by itself
-to retrieve all records from a table:
-
$query = $this->db->get('mytable'); // Produces: SELECT * FROM mytable
-
-
-
The second and third parameters enable you to set a limit and offset
-clause:
-
$query = $this->db->get('mytable', 10, 20);
-
-// Executes: SELECT * FROM mytable LIMIT 20, 10
-// (in MySQL. Other databases have slightly different syntax)
-
-
-
You’ll notice that the above function is assigned to a variable named
-$query, which can be used to show the results:
-
$query = $this->db->get('mytable');
-
-foreach ($query->result() as $row)
-{
- echo $row->title;
-}
-
-
-
Please visit the result functions page for a full
-discussion regarding result generation.
-
$this->db->get_compiled_select()
-
Compiles the selection query just like $this->db->get() but does not run
-the query. This method simply returns the SQL query as a string.
-
Example:
-
$sql = $this->db->get_compiled_select('mytable');
-echo $sql;
-
-// Prints string: SELECT * FROM mytable
-
-
-
The second parameter enables you to set whether or not the query builder query
-will be reset (by default it will be reset, just like when using $this->db->get()):
-
echo $this->db->limit(10,20)->get_compiled_select('mytable', FALSE);
-
-// Prints string: SELECT * FROM mytable LIMIT 20, 10
-// (in MySQL. Other databases have slightly different syntax)
-
-echo $this->db->select('title, content, date')->get_compiled_select();
-
-// Prints string: SELECT title, content, date FROM mytable LIMIT 20, 10
-
-
-
The key thing to notice in the above example is that the second query did not
-utilize $this->db->from() and did not pass a table name into the first
-parameter. The reason for this outcome is because the query has not been
-executed using $this->db->get() which resets values or reset directly
-using $this->db->reset_query().
-
$this->db->get_where()
-
Identical to the above function except that it permits you to add a
-“where” clause in the second parameter, instead of using the db->where()
-function:
-
$query = $this->db->get_where('mytable', array('id' => $id), $limit, $offset);
-
-
-
Please read the about the where function below for more information.
-
-
Note
-
get_where() was formerly known as getwhere(), which has been removed
-
-
$this->db->select()
-
Permits you to write the SELECT portion of your query:
-
$this->db->select('title, content, date');
-$query = $this->db->get('mytable');
-
-// Executes: SELECT title, content, date FROM mytable
-
-
-
-
Note
-
If you are selecting all (*) from a table you do not need to
-use this function. When omitted, CodeIgniter assumes that you wish
-to select all fields and automatically adds ‘SELECT *’.
-
-
$this->db->select() accepts an optional second parameter. If you set it
-to FALSE, CodeIgniter will not try to protect your field or table names.
-This is useful if you need a compound select statement where automatic
-escaping of fields may break them.
-
$this->db->select('(SELECT SUM(payments.amount) FROM payments WHERE payments.invoice_id=4') AS amount_paid', FALSE);
-$query = $this->db->get('mytable');
-
-
-
$this->db->select_max()
-
Writes a SELECT MAX(field) portion for your query. You can optionally
-include a second parameter to rename the resulting field.
-
$this->db->select_max('age');
-$query = $this->db->get('members'); // Produces: SELECT MAX(age) as age FROM members
-
-$this->db->select_max('age', 'member_age');
-$query = $this->db->get('members'); // Produces: SELECT MAX(age) as member_age FROM members
-
-
-
$this->db->select_min()
-
Writes a “SELECT MIN(field)” portion for your query. As with
-select_max(), You can optionally include a second parameter to rename
-the resulting field.
-
$this->db->select_min('age');
-$query = $this->db->get('members'); // Produces: SELECT MIN(age) as age FROM members
-
-
-
$this->db->select_avg()
-
Writes a “SELECT AVG(field)” portion for your query. As with
-select_max(), You can optionally include a second parameter to rename
-the resulting field.
-
$this->db->select_avg('age');
-$query = $this->db->get('members'); // Produces: SELECT AVG(age) as age FROM members
-
-
-
$this->db->select_sum()
-
Writes a “SELECT SUM(field)” portion for your query. As with
-select_max(), You can optionally include a second parameter to rename
-the resulting field.
-
$this->db->select_sum('age');
-$query = $this->db->get('members'); // Produces: SELECT SUM(age) as age FROM members
-
-
-
$this->db->from()
-
Permits you to write the FROM portion of your query:
-
$this->db->select('title, content, date');
-$this->db->from('mytable');
-$query = $this->db->get(); // Produces: SELECT title, content, date FROM mytable
-
-
-
-
Note
-
As shown earlier, the FROM portion of your query can be specified
-in the $this->db->get() function, so use whichever method you prefer.
-
-
$this->db->join()
-
Permits you to write the JOIN portion of your query:
-
$this->db->select('*');
-$this->db->from('blogs');
-$this->db->join('comments', 'comments.id = blogs.id');
-$query = $this->db->get();
-
-// Produces:
-// SELECT * FROM blogs JOIN comments ON comments.id = blogs.id
-
-
-
Multiple function calls can be made if you need several joins in one
-query.
-
If you need a specific type of JOIN you can specify it via the third
-parameter of the function. Options are: left, right, outer, inner, left
-outer, and right outer.
-
$this->db->join('comments', 'comments.id = blogs.id', 'left');
-// Produces: LEFT JOIN comments ON comments.id = blogs.id
-
-
-
-
-
-
$this->db->where()
-
This function enables you to set WHERE clauses using one of four
-methods:
-
-
Note
-
All values passed to this function are escaped automatically,
-producing safer queries.
-
-
-Simple key/value method:
-
-$this->db->where('name', $name); // Produces: WHERE name = 'Joe'
-
-
-
Notice that the equal sign is added for you.
-
If you use multiple function calls they will be chained together with
-AND between them:
-
$this->db->where('name', $name);
-$this->db->where('title', $title);
-$this->db->where('status', $status);
-// WHERE name = 'Joe' AND title = 'boss' AND status = 'active'
-
-
-
-
-Custom key/value method:
-
-You can include an operator in the first parameter in order to
-control the comparison:
-
$this->db->where('name !=', $name);
-$this->db->where('id <', $id); // Produces: WHERE name != 'Joe' AND id < 45
-
-
-
-
-Associative array method:
-
-$array = array('name' => $name, 'title' => $title, 'status' => $status);
-$this->db->where($array);
-// Produces: WHERE name = 'Joe' AND title = 'boss' AND status = 'active'
-
-
-
You can include your own operators using this method as well:
-
$array = array('name !=' => $name, 'id <' => $id, 'date >' => $date);
-$this->db->where($array);
-
-
-
-
-
-- Custom string:
-You can write your own clauses manually:
-$where = "name='Joe' AND status='boss' OR status='active'";
-$this->db->where($where);
-
-
-
-
-
-
-
$this->db->where() accepts an optional third parameter. If you set it to
-FALSE, CodeIgniter will not try to protect your field or table names.
-
$this->db->where('MATCH (field) AGAINST ("value")', NULL, FALSE);
-
-
-
$this->db->or_where()
-
This function is identical to the one above, except that multiple
-instances are joined by OR:
-
$this->db->where('name !=', $name);
-$this->db->or_where('id >', $id); // Produces: WHERE name != 'Joe' OR id > 50
-
-
-
-
Note
-
or_where() was formerly known as orwhere(), which has been
-removed.
-
-
$this->db->where_in()
-
Generates a WHERE field IN (‘item’, ‘item’) SQL query joined with AND if
-appropriate
-
$names = array('Frank', 'Todd', 'James');
-$this->db->where_in('username', $names);
-// Produces: WHERE username IN ('Frank', 'Todd', 'James')
-
-
-
$this->db->or_where_in()
-
Generates a WHERE field IN (‘item’, ‘item’) SQL query joined with OR if
-appropriate
-
$names = array('Frank', 'Todd', 'James');
-$this->db->or_where_in('username', $names);
-// Produces: OR username IN ('Frank', 'Todd', 'James')
-
-
-
$this->db->where_not_in()
-
Generates a WHERE field NOT IN (‘item’, ‘item’) SQL query joined with
-AND if appropriate
-
$names = array('Frank', 'Todd', 'James');
-$this->db->where_not_in('username', $names);
-// Produces: WHERE username NOT IN ('Frank', 'Todd', 'James')
-
-
-
$this->db->or_where_not_in()
-
Generates a WHERE field NOT IN (‘item’, ‘item’) SQL query joined with OR
-if appropriate
-
$names = array('Frank', 'Todd', 'James');
-$this->db->or_where_not_in('username', $names);
-// Produces: OR username NOT IN ('Frank', 'Todd', 'James')
-
-
-
-
-
-
$this->db->like()
-
This method enables you to generate LIKE clauses, useful for doing
-searches.
-
-
Note
-
All values passed to this method are escaped automatically.
-
-
-Simple key/value method:
-
-$this->db->like('title', 'match');
-// Produces: WHERE `title` LIKE '%match%' ESCAPE '!'
-
-
-
If you use multiple method calls they will be chained together with
-AND between them:
-
$this->db->like('title', 'match');
-$this->db->like('body', 'match');
-// WHERE `title` LIKE '%match%' ESCAPE '!' AND `body` LIKE '%match% ESCAPE '!'
-
-
-
If you want to control where the wildcard (%) is placed, you can use
-an optional third argument. Your options are ‘before’, ‘after’ and
-‘both’ (which is the default).
-
$this->db->like('title', 'match', 'before'); // Produces: WHERE `title` LIKE '%match' ESCAPE '!'
-$this->db->like('title', 'match', 'after'); // Produces: WHERE `title` LIKE 'match%' ESCAPE '!'
-$this->db->like('title', 'match', 'both'); // Produces: WHERE `title` LIKE '%match%' ESCAPE '!'
-
-
-
-
-Associative array method:
-
-$array = array('title' => $match, 'page1' => $match, 'page2' => $match);
-$this->db->like($array);
-// WHERE `title` LIKE '%match%' ESCAPE '!' AND `page1` LIKE '%match%' ESCAPE '!' AND `page2` LIKE '%match%' ESCAPE '!'
-
-
-
-
-
-
$this->db->or_like()
-
This method is identical to the one above, except that multiple
-instances are joined by OR:
-
$this->db->like('title', 'match'); $this->db->or_like('body', $match);
-// WHERE `title` LIKE '%match%' ESCAPE '!' OR `body` LIKE '%match%' ESCAPE '!'
-
-
-
-
Note
-
or_like() was formerly known as orlike(), which has been removed.
-
-
$this->db->not_like()
-
This method is identical to like(), except that it generates
-NOT LIKE statements:
-
$this->db->not_like('title', 'match'); // WHERE `title` NOT LIKE '%match% ESCAPE '!'
-
-
-
$this->db->or_not_like()
-
This method is identical to not_like(), except that multiple
-instances are joined by OR:
-
$this->db->like('title', 'match');
-$this->db->or_not_like('body', 'match');
-// WHERE `title` LIKE '%match% OR `body` NOT LIKE '%match%' ESCAPE '!'
-
-
-
$this->db->group_by()
-
Permits you to write the GROUP BY portion of your query:
-
$this->db->group_by("title"); // Produces: GROUP BY title
-
-
-
You can also pass an array of multiple values as well:
-
$this->db->group_by(array("title", "date")); // Produces: GROUP BY title, date
-
-
-
-
Note
-
group_by() was formerly known as groupby(), which has been
-removed.
-
-
$this->db->distinct()
-
Adds the “DISTINCT” keyword to a query
-
$this->db->distinct();
-$this->db->get('table'); // Produces: SELECT DISTINCT * FROM table
-
-
-
$this->db->having()
-
Permits you to write the HAVING portion of your query. There are 2
-possible syntaxes, 1 argument or 2:
-
$this->db->having('user_id = 45'); // Produces: HAVING user_id = 45
-$this->db->having('user_id', 45); // Produces: HAVING user_id = 45
-
-
-
You can also pass an array of multiple values as well:
-
$this->db->having(array('title =' => 'My Title', 'id <' => $id));
-// Produces: HAVING title = 'My Title', id < 45
-
-
-
If you are using a database that CodeIgniter escapes queries for, you
-can prevent escaping content by passing an optional third argument, and
-setting it to FALSE.
-
$this->db->having('user_id', 45); // Produces: HAVING `user_id` = 45 in some databases such as MySQL
-$this->db->having('user_id', 45, FALSE); // Produces: HAVING user_id = 45
-
-
-
$this->db->or_having()
-
Identical to having(), only separates multiple clauses with “OR”.
-
-
-
-
$this->db->order_by()
-
Lets you set an ORDER BY clause.
-
The first parameter contains the name of the column you would like to order by.
-
The second parameter lets you set the direction of the result.
-Options are ASC, DESC AND RANDOM.
-
$this->db->order_by('title', 'DESC');
-// Produces: ORDER BY `title` DESC
-
-
-
You can also pass your own string in the first parameter:
-
$this->db->order_by('title DESC, name ASC');
-// Produces: ORDER BY `title` DESC, `name` ASC
-
-
-
Or multiple function calls can be made if you need multiple fields.
-
$this->db->order_by('title', 'DESC');
-$this->db->order_by('name', 'ASC');
-// Produces: ORDER BY `title` DESC, `name` ASC
-
-
-
If you choose the RANDOM direction option, then the first parameters will
-be ignored, unless you specify a numeric seed value.
-
$this->db->order_by('title', 'RANDOM');
-// Produces: ORDER BY RAND()
-
-$this->db->order_by(42, 'RANDOM');
-// Produces: ORDER BY RAND(42)
-
-
-
-
Note
-
order_by() was formerly known as orderby(), which has been
-removed.
-
-
-
Note
-
Random ordering is not currently supported in Oracle and
-will default to ASC instead.
-
-
-
-
-
$this->db->limit()
-
Lets you limit the number of rows you would like returned by the query:
-
$this->db->limit(10); // Produces: LIMIT 10
-
-
-
The second parameter lets you set a result offset.
-
$this->db->limit(10, 20); // Produces: LIMIT 20, 10 (in MySQL. Other databases have slightly different syntax)
-
-
-
$this->db->count_all_results()
-
Permits you to determine the number of rows in a particular Active
-Record query. Queries will accept Query Builder restrictors such as
-where(), or_where(), like(), or_like(), etc. Example:
-
echo $this->db->count_all_results('my_table'); // Produces an integer, like 25
-$this->db->like('title', 'match');
-$this->db->from('my_table');
-echo $this->db->count_all_results(); // Produces an integer, like 17
-
-
-
However, this method also resets any field values that you may have passed
-to select(). If you need to keep them, you can pass FALSE as the
-second parameter:
-
echo $this->db->count_all_results('my_table', FALSE);
-
-
-
$this->db->count_all()
-
Permits you to determine the number of rows in a particular table.
-Submit the table name in the first parameter. Example:
-
echo $this->db->count_all('my_table'); // Produces an integer, like 25
-
-
-
-
-
-
Query grouping allows you to create groups of WHERE clauses by enclosing them in parentheses. This will allow
-you to create queries with complex WHERE clauses. Nested groups are supported. Example:
-
$this->db->select('*')->from('my_table')
- ->group_start()
- ->where('a', 'a')
- ->or_group_start()
- ->where('b', 'b')
- ->where('c', 'c')
- ->group_end()
- ->group_end()
- ->where('d', 'd')
-->get();
-
-// Generates:
-// SELECT * FROM (`my_table`) WHERE ( `a` = 'a' OR ( `b` = 'b' AND `c` = 'c' ) ) AND `d` = 'd'
-
-
-
-
Note
-
groups need to be balanced, make sure every group_start() is matched by a group_end().
-
-
$this->db->group_start()
-
Starts a new group by adding an opening parenthesis to the WHERE clause of the query.
-
$this->db->or_group_start()
-
Starts a new group by adding an opening parenthesis to the WHERE clause of the query, prefixing it with ‘OR’.
-
$this->db->not_group_start()
-
Starts a new group by adding an opening parenthesis to the WHERE clause of the query, prefixing it with ‘NOT’.
-
$this->db->or_not_group_start()
-
Starts a new group by adding an opening parenthesis to the WHERE clause of the query, prefixing it with ‘OR NOT’.
-
$this->db->group_end()
-
Ends the current group by adding an closing parenthesis to the WHERE clause of the query.
-
-
-
-
$this->db->insert()
-
Generates an insert string based on the data you supply, and runs the
-query. You can either pass an array or an object to the
-function. Here is an example using an array:
-
$data = array(
- 'title' => 'My title',
- 'name' => 'My Name',
- 'date' => 'My date'
-);
-
-$this->db->insert('mytable', $data);
-// Produces: INSERT INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date')
-
-
-
The first parameter will contain the table name, the second is an
-associative array of values.
-
Here is an example using an object:
-
/*
-class Myclass {
- public $title = 'My Title';
- public $content = 'My Content';
- public $date = 'My Date';
-}
-*/
-
-$object = new Myclass;
-$this->db->insert('mytable', $object);
-// Produces: INSERT INTO mytable (title, content, date) VALUES ('My Title', 'My Content', 'My Date')
-
-
-
The first parameter will contain the table name, the second is an
-object.
-
-
Note
-
All values are escaped automatically producing safer queries.
-
-
$this->db->get_compiled_insert()
-
Compiles the insertion query just like $this->db->insert() but does not
-run the query. This method simply returns the SQL query as a string.
-
Example:
-
$data = array(
- 'title' => 'My title',
- 'name' => 'My Name',
- 'date' => 'My date'
-);
-
-$sql = $this->db->set($data)->get_compiled_insert('mytable');
-echo $sql;
-
-// Produces string: INSERT INTO mytable (`title`, `name`, `date`) VALUES ('My title', 'My name', 'My date')
-
-
-
The second parameter enables you to set whether or not the query builder query
-will be reset (by default it will be–just like $this->db->insert()):
-
echo $this->db->set('title', 'My Title')->get_compiled_insert('mytable', FALSE);
-
-// Produces string: INSERT INTO mytable (`title`) VALUES ('My Title')
-
-echo $this->db->set('content', 'My Content')->get_compiled_insert();
-
-// Produces string: INSERT INTO mytable (`title`, `content`) VALUES ('My Title', 'My Content')
-
-
-
The key thing to notice in the above example is that the second query did not
-utlize $this->db->from() nor did it pass a table name into the first
-parameter. The reason this worked is because the query has not been executed
-using $this->db->insert() which resets values or reset directly using
-$this->db->reset_query().
-
-
Note
-
This method doesn’t work for batched inserts.
-
-
$this->db->insert_batch()
-
Generates an insert string based on the data you supply, and runs the
-query. You can either pass an array or an object to the
-function. Here is an example using an array:
-
$data = array(
- array(
- 'title' => 'My title',
- 'name' => 'My Name',
- 'date' => 'My date'
- ),
- array(
- 'title' => 'Another title',
- 'name' => 'Another Name',
- 'date' => 'Another date'
- )
-);
-
-$this->db->insert_batch('mytable', $data);
-// Produces: INSERT INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date'), ('Another title', 'Another name', 'Another date')
-
-
-
The first parameter will contain the table name, the second is an
-associative array of values.
-
-
Note
-
All values are escaped automatically producing safer queries.
-
-
-
-
-
$this->db->replace()
-
This method executes a REPLACE statement, which is basically the SQL
-standard for (optional) DELETE + INSERT, using PRIMARY and UNIQUE
-keys as the determining factor.
-In our case, it will save you from the need to implement complex
-logics with different combinations of select(), update(),
-delete() and insert() calls.
-
Example:
-
$data = array(
- 'title' => 'My title',
- 'name' => 'My Name',
- 'date' => 'My date'
-);
-
-$this->db->replace('table', $data);
-
-// Executes: REPLACE INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date')
-
-
-
In the above example, if we assume that the title field is our primary
-key, then if a row containing ‘My title’ as the title value, that row
-will be deleted with our new row data replacing it.
-
Usage of the set() method is also allowed and all fields are
-automatically escaped, just like with insert().
-
$this->db->set()
-
This function enables you to set values for inserts or updates.
-
It can be used instead of passing a data array directly to the insert
-or update functions:
-
$this->db->set('name', $name);
-$this->db->insert('mytable'); // Produces: INSERT INTO mytable (`name`) VALUES ('{$name}')
-
-
-
If you use multiple function called they will be assembled properly
-based on whether you are doing an insert or an update:
-
$this->db->set('name', $name);
-$this->db->set('title', $title);
-$this->db->set('status', $status);
-$this->db->insert('mytable');
-
-
-
set() will also accept an optional third parameter ($escape), that
-will prevent data from being escaped if set to FALSE. To illustrate the
-difference, here is set() used both with and without the escape
-parameter.
-
$this->db->set('field', 'field+1', FALSE);
-$this->db->where('id', 2);
-$this->db->update('mytable'); // gives UPDATE mytable SET field = field+1 WHERE id = 2
-
-$this->db->set('field', 'field+1');
-$this->db->where('id', 2);
-$this->db->update('mytable'); // gives UPDATE `mytable` SET `field` = 'field+1' WHERE `id` = 2
-
-
-
You can also pass an associative array to this function:
-
$array = array(
- 'name' => $name,
- 'title' => $title,
- 'status' => $status
-);
-
-$this->db->set($array);
-$this->db->insert('mytable');
-
-
-
Or an object:
-
/*
-class Myclass {
- public $title = 'My Title';
- public $content = 'My Content';
- public $date = 'My Date';
-}
-*/
-
-$object = new Myclass;
-$this->db->set($object);
-$this->db->insert('mytable');
-
-
-
$this->db->update()
-
Generates an update string and runs the query based on the data you
-supply. You can pass an array or an object to the function. Here
-is an example using an array:
-
$data = array(
- 'title' => $title,
- 'name' => $name,
- 'date' => $date
-);
-
-$this->db->where('id', $id);
-$this->db->update('mytable', $data);
-// Produces:
-//
-// UPDATE mytable
-// SET title = '{$title}', name = '{$name}', date = '{$date}'
-// WHERE id = $id
-
-
-
Or you can supply an object:
-
/*
-class Myclass {
- public $title = 'My Title';
- public $content = 'My Content';
- public $date = 'My Date';
-}
-*/
-
-$object = new Myclass;
-$this->db->where('id', $id);
-$this->db->update('mytable', $object);
-// Produces:
-//
-// UPDATE `mytable`
-// SET `title` = '{$title}', `name` = '{$name}', `date` = '{$date}'
-// WHERE id = `$id`
-
-
-
-
Note
-
All values are escaped automatically producing safer queries.
-
-
You’ll notice the use of the $this->db->where() function, enabling you
-to set the WHERE clause. You can optionally pass this information
-directly into the update function as a string:
-
$this->db->update('mytable', $data, "id = 4");
-
-
-
Or as an array:
-
$this->db->update('mytable', $data, array('id' => $id));
-
-
-
You may also use the $this->db->set() function described above when
-performing updates.
-
$this->db->update_batch()
-
Generates an update string based on the data you supply, and runs the query.
-You can either pass an array or an object to the function.
-Here is an example using an array:
-
$data = array(
- array(
- 'title' => 'My title' ,
- 'name' => 'My Name 2' ,
- 'date' => 'My date 2'
- ),
- array(
- 'title' => 'Another title' ,
- 'name' => 'Another Name 2' ,
- 'date' => 'Another date 2'
- )
-);
-
-$this->db->update_batch('mytable', $data, 'title');
-
-// Produces:
-// UPDATE `mytable` SET `name` = CASE
-// WHEN `title` = 'My title' THEN 'My Name 2'
-// WHEN `title` = 'Another title' THEN 'Another Name 2'
-// ELSE `name` END,
-// `date` = CASE
-// WHEN `title` = 'My title' THEN 'My date 2'
-// WHEN `title` = 'Another title' THEN 'Another date 2'
-// ELSE `date` END
-// WHERE `title` IN ('My title','Another title')
-
-
-
The first parameter will contain the table name, the second is an associative
-array of values, the third parameter is the where key.
-
-
Note
-
All values are escaped automatically producing safer queries.
-
-
-
Note
-
affected_rows() won’t give you proper results with this method,
-due to the very nature of how it works. Instead, update_batch()
-returns the number of rows affected.
-
-
$this->db->get_compiled_update()
-
This works exactly the same way as $this->db->get_compiled_insert() except
-that it produces an UPDATE SQL string instead of an INSERT SQL string.
-
For more information view documentation for $this->db->get_compiled_insert().
-
-
Note
-
This method doesn’t work for batched updates.
-
-
-
-
-
$this->db->delete()
-
Generates a delete SQL string and runs the query.
-
$this->db->delete('mytable', array('id' => $id)); // Produces: // DELETE FROM mytable // WHERE id = $id
-
-
-
The first parameter is the table name, the second is the where clause.
-You can also use the where() or or_where() functions instead of passing
-the data to the second parameter of the function:
-
$this->db->where('id', $id);
-$this->db->delete('mytable');
-
-// Produces:
-// DELETE FROM mytable
-// WHERE id = $id
-
-
-
An array of table names can be passed into delete() if you would like to
-delete data from more than 1 table.
-
$tables = array('table1', 'table2', 'table3');
-$this->db->where('id', '5');
-$this->db->delete($tables);
-
-
-
If you want to delete all data from a table, you can use the truncate()
-function, or empty_table().
-
$this->db->empty_table()
-
Generates a delete SQL string and runs the
-query.:
-
$this->db->empty_table('mytable'); // Produces: DELETE FROM mytable
-
-
-
$this->db->truncate()
-
Generates a truncate SQL string and runs the query.
-
$this->db->from('mytable');
-$this->db->truncate();
-
-// or
-
-$this->db->truncate('mytable');
-
-// Produce:
-// TRUNCATE mytable
-
-
-
-
Note
-
If the TRUNCATE command isn’t available, truncate() will
-execute as “DELETE FROM table”.
-
-
$this->db->get_compiled_delete()
-
This works exactly the same way as $this->db->get_compiled_insert() except
-that it produces a DELETE SQL string instead of an INSERT SQL string.
-
For more information view documentation for $this->db->get_compiled_insert().
-
-
-
-
Method chaining allows you to simplify your syntax by connecting
-multiple functions. Consider this example:
-
$query = $this->db->select('title')
- ->where('id', $id)
- ->limit(10, 20)
- ->get('mytable');
-
-
-
-
-
-
While not “true” caching, Query Builder enables you to save (or “cache”)
-certain parts of your queries for reuse at a later point in your
-script’s execution. Normally, when an Query Builder call is completed,
-all stored information is reset for the next call. With caching, you can
-prevent this reset, and reuse information easily.
-
Cached calls are cumulative. If you make 2 cached select() calls, and
-then 2 uncached select() calls, this will result in 4 select() calls.
-There are three Caching functions available:
-
$this->db->start_cache()
-
This function must be called to begin caching. All Query Builder queries
-of the correct type (see below for supported queries) are stored for
-later use.
-
$this->db->stop_cache()
-
This function can be called to stop caching.
-
$this->db->flush_cache()
-
This function deletes all items from the Query Builder cache.
-
-
An example of caching
-
Here’s a usage example:
-
$this->db->start_cache();
-$this->db->select('field1');
-$this->db->stop_cache();
-$this->db->get('tablename');
-//Generates: SELECT `field1` FROM (`tablename`)
-
-$this->db->select('field2');
-$this->db->get('tablename');
-//Generates: SELECT `field1`, `field2` FROM (`tablename`)
-
-$this->db->flush_cache();
-$this->db->select('field2');
-$this->db->get('tablename');
-//Generates: SELECT `field2` FROM (`tablename`)
-
-
-
-
Note
-
The following statements can be cached: select, from, join,
-where, like, group_by, having, order_by
-
-
-
-
-
-
$this->db->reset_query()
-
Resetting Query Builder allows you to start fresh with your query without
-executing it first using a method like $this->db->get() or $this->db->insert().
-Just like the methods that execute a query, this will not reset items you’ve
-cached using Query Builder Caching.
-
This is useful in situations where you are using Query Builder to generate SQL
-(ex. $this->db->get_compiled_select()) but then choose to, for instance,
-run the query:
-
// Note that the second parameter of the get_compiled_select method is FALSE
-$sql = $this->db->select(array('field1','field2'))
- ->where('field3',5)
- ->get_compiled_select('mytable', FALSE);
-
-// ...
-// Do something crazy with the SQL code... like add it to a cron script for
-// later execution or something...
-// ...
-
-$data = $this->db->get()->result_array();
-
-// Would execute and return an array of results of the following query:
-// SELECT field1, field1 from mytable where field3 = 5;
-
-
-
-
Note
-
Double calls to get_compiled_select() while you’re using the
-Query Builder Caching functionality and NOT resetting your queries
-will results in the cache being merged twice. That in turn will
-i.e. if you’re caching a select() - select the same field twice.
-
-
-
-
-
--
-class CI_DB_query_builder
-
--
-reset_query()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Resets the current Query Builder state. Useful when you want
-to build a query that can be cancelled under certain conditions.
-
-
-
--
-start_cache()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Starts the Query Builder cache.
-
-
-
--
-stop_cache()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Stops the Query Builder cache.
-
-
-
--
-flush_cache()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Empties the Query Builder cache.
-
-
-
--
-set_dbprefix([$prefix = ''])
-
-
-
-
-Parameters: |
-- $prefix (string) – The new prefix to use
-
- |
-
-Returns: | The DB prefix in use
- |
-
-Return type: | string
- |
-
-
-
-Sets the database prefix, without having to reconnect.
-
-
-
--
-dbprefix([$table = ''])
-
-
-
-
-Parameters: |
-- $table (string) – The table name to prefix
-
- |
-
-Returns: | The prefixed table name
- |
-
-Return type: | string
- |
-
-
-
-Prepends a database prefix, if one exists in configuration.
-
-
-
--
-count_all_results([$table = ''[, $reset = TRUE]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $reset (bool) – Whether to reset values for SELECTs
-
- |
-
-Returns: | Number of rows in the query result
- |
-
-Return type: | int
- |
-
-
-
-Generates a platform-specific query string that counts
-all records returned by an Query Builder query.
-
-
-
--
-get([$table = ''[, $limit = NULL[, $offset = NULL]]])
-
-
-
-
-Parameters: |
-- $table (string) – The table to query
-- $limit (int) – The LIMIT clause
-- $offset (int) – The OFFSET clause
-
- |
-
-Returns: | CI_DB_result instance (method chaining)
- |
-
-Return type: | CI_DB_result
- |
-
-
-
-Compiles and runs SELECT statement based on the already
-called Query Builder methods.
-
-
-
--
-get_where([$table = ''[, $where = NULL[, $limit = NULL[, $offset = NULL]]]])
-
-
-
-
-Parameters: |
-- $table (mixed) – The table(s) to fetch data from; string or array
-- $where (string) – The WHERE clause
-- $limit (int) – The LIMIT clause
-- $offset (int) – The OFFSET clause
-
- |
-
-Returns: | CI_DB_result instance (method chaining)
- |
-
-Return type: | CI_DB_result
- |
-
-
-
-Same as get(), but also allows the WHERE to be added directly.
-
-
-
--
-select([$select = '*'[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $select (string) – The SELECT portion of a query
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a SELECT clause to a query.
-
-
-
--
-select_avg([$select = ''[, $alias = '']])
-
-
-
-
-Parameters: |
-- $select (string) – Field to compute the average of
-- $alias (string) – Alias for the resulting value name
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a SELECT AVG(field) clause to a query.
-
-
-
--
-select_max([$select = ''[, $alias = '']])
-
-
-
-
-Parameters: |
-- $select (string) – Field to compute the maximum of
-- $alias (string) – Alias for the resulting value name
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a SELECT MAX(field) clause to a query.
-
-
-
--
-select_min([$select = ''[, $alias = '']])
-
-
-
-
-Parameters: |
-- $select (string) – Field to compute the minimum of
-- $alias (string) – Alias for the resulting value name
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a SELECT MIN(field) clause to a query.
-
-
-
--
-select_sum([$select = ''[, $alias = '']])
-
-
-
-
-Parameters: |
-- $select (string) – Field to compute the sum of
-- $alias (string) – Alias for the resulting value name
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a SELECT SUM(field) clause to a query.
-
-
-
--
-distinct([$val = TRUE])
-
-
-
-
-Parameters: |
-- $val (bool) – Desired value of the “distinct” flag
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Sets a flag which tells the query builder to add
-a DISTINCT clause to the SELECT portion of the query.
-
-
-
--
-from($from)
-
-
-
-
-Parameters: |
-- $from (mixed) – Table name(s); string or array
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Specifies the FROM clause of a query.
-
-
-
--
-join($table, $cond[, $type = ''[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name to join
-- $cond (string) – The JOIN ON condition
-- $type (string) – The JOIN type
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a JOIN clause to a query.
-
-
-
--
-where($key[, $value = NULL[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Name of field to compare, or associative array
-- $value (mixed) – If a single key, compared to this value
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | DB_query_builder instance
- |
-
-Return type: | object
- |
-
-
-
-Generates the WHERE portion of the query.
-Separates multiple calls with ‘AND’.
-
-
-
--
-or_where($key[, $value = NULL[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Name of field to compare, or associative array
-- $value (mixed) – If a single key, compared to this value
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | DB_query_builder instance
- |
-
-Return type: | object
- |
-
-
-
-Generates the WHERE portion of the query.
-Separates multiple calls with ‘OR’.
-
-
-
--
-or_where_in([$key = NULL[, $values = NULL[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $key (string) – The field to search
-- $values (array) – The values searched on
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | DB_query_builder instance
- |
-
-Return type: | object
- |
-
-
-
-Generates a WHERE field IN(‘item’, ‘item’) SQL query,
-joined with ‘OR’ if appropriate.
-
-
-
--
-or_where_not_in([$key = NULL[, $values = NULL[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $key (string) – The field to search
-- $values (array) – The values searched on
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | DB_query_builder instance
- |
-
-Return type: | object
- |
-
-
-
-Generates a WHERE field NOT IN(‘item’, ‘item’) SQL query,
-joined with ‘OR’ if appropriate.
-
-
-
--
-where_in([$key = NULL[, $values = NULL[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $key (string) – Name of field to examine
-- $values (array) – Array of target values
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | DB_query_builder instance
- |
-
-Return type: | object
- |
-
-
-
-Generates a WHERE field IN(‘item’, ‘item’) SQL query,
-joined with ‘AND’ if appropriate.
-
-
-
--
-where_not_in([$key = NULL[, $values = NULL[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $key (string) – Name of field to examine
-- $values (array) – Array of target values
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | DB_query_builder instance
- |
-
-Return type: | object
- |
-
-
-
-Generates a WHERE field NOT IN(‘item’, ‘item’) SQL query,
-joined with ‘AND’ if appropriate.
-
-
-
--
-group_start()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Starts a group expression, using ANDs for the conditions inside it.
-
-
-
--
-or_group_start()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Starts a group expression, using ORs for the conditions inside it.
-
-
-
--
-not_group_start()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Starts a group expression, using AND NOTs for the conditions inside it.
-
-
-
--
-or_not_group_start()
-
-
-
-
-Returns: | CI_DB_query_builder instance (method chaining) |
-
-Return type: | CI_DB_query_builder |
-
-
-
-Starts a group expression, using OR NOTs for the conditions inside it.
-
-
-
--
-group_end()
-
-
-
-
-Returns: | DB_query_builder instance |
-
-Return type: | object |
-
-
-
-Ends a group expression.
-
-
-
--
-like($field[, $match = ''[, $side = 'both'[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $field (string) – Field name
-- $match (string) – Text portion to match
-- $side (string) – Which side of the expression to put the ‘%’ wildcard on
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a LIKE clause to a query, separating multiple calls with AND.
-
-
-
--
-or_like($field[, $match = ''[, $side = 'both'[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $field (string) – Field name
-- $match (string) – Text portion to match
-- $side (string) – Which side of the expression to put the ‘%’ wildcard on
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a LIKE clause to a query, separating multiple class with OR.
-
-
-
--
-not_like($field[, $match = ''[, $side = 'both'[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $field (string) – Field name
-- $match (string) – Text portion to match
-- $side (string) – Which side of the expression to put the ‘%’ wildcard on
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a NOT LIKE clause to a query, separating multiple calls with AND.
-
-
-
--
-or_not_like($field[, $match = ''[, $side = 'both'[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $field (string) – Field name
-- $match (string) – Text portion to match
-- $side (string) – Which side of the expression to put the ‘%’ wildcard on
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a NOT LIKE clause to a query, separating multiple calls with OR.
-
-
-
--
-having($key[, $value = NULL[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Identifier (string) or associative array of field/value pairs
-- $value (string) – Value sought if $key is an identifier
-- $escape (string) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a HAVING clause to a query, separating multiple calls with AND.
-
-
-
--
-or_having($key[, $value = NULL[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Identifier (string) or associative array of field/value pairs
-- $value (string) – Value sought if $key is an identifier
-- $escape (string) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a HAVING clause to a query, separating multiple calls with OR.
-
-
-
--
-group_by($by[, $escape = NULL])
-
-
-
-
-Parameters: |
-- $by (mixed) – Field(s) to group by; string or array
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds a GROUP BY clause to a query.
-
-
-
--
-order_by($orderby[, $direction = ''[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $orderby (string) – Field to order by
-- $direction (string) – The order requested - ASC, DESC or random
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds an ORDER BY clause to a query.
-
-
-
--
-limit($value[, $offset = 0])
-
-
-
-
-Parameters: |
-- $value (int) – Number of rows to limit the results to
-- $offset (int) – Number of rows to skip
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds LIMIT and OFFSET clauses to a query.
-
-
-
--
-offset($offset)
-
-
-
-
-Parameters: |
-- $offset (int) – Number of rows to skip
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds an OFFSET clause to a query.
-
-
-
--
-set($key[, $value = ''[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Field name, or an array of field/value pairs
-- $value (string) – Field value, if $key is a single field
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds field/value pairs to be passed later to insert(),
-update() or replace().
-
-
-
--
-insert([$table = ''[, $set = NULL[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $set (array) – An associative array of field/value pairs
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | TRUE on success, FALSE on failure
- |
-
-Return type: | bool
- |
-
-
-
-Compiles and executes an INSERT statement.
-
-
-
--
-insert_batch([$table = ''[, $set = NULL[, $escape = NULL]]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $set (array) – Data to insert
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | Number of rows inserted or FALSE on failure
- |
-
-Return type: | mixed
- |
-
-
-
-Compiles and executes batch INSERT statements.
-
-
-
--
-set_insert_batch($key[, $value = ''[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Field name or an array of field/value pairs
-- $value (string) – Field value, if $key is a single field
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds field/value pairs to be inserted in a table later via insert_batch().
-
-
-
--
-update([$table = ''[, $set = NULL[, $where = NULL[, $limit = NULL]]]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $set (array) – An associative array of field/value pairs
-- $where (string) – The WHERE clause
-- $limit (int) – The LIMIT clause
-
- |
-
-Returns: | TRUE on success, FALSE on failure
- |
-
-Return type: | bool
- |
-
-
-
-Compiles and executes an UPDATE statement.
-
-
-
--
-update_batch([$table = ''[, $set = NULL[, $value = NULL]]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $set (array) – Field name, or an associative array of field/value pairs
-- $value (string) – Field value, if $set is a single field
-
- |
-
-Returns: | Number of rows updated or FALSE on failure
- |
-
-Return type: | mixed
- |
-
-
-
-Compiles and executes batch UPDATE statements.
-
-
-
--
-set_update_batch($key[, $value = ''[, $escape = NULL]])
-
-
-
-
-Parameters: |
-- $key (mixed) – Field name or an array of field/value pairs
-- $value (string) – Field value, if $key is a single field
-- $escape (bool) – Whether to escape values and identifiers
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining)
- |
-
-Return type: | CI_DB_query_builder
- |
-
-
-
-Adds field/value pairs to be updated in a table later via update_batch().
-
-
-
--
-replace([$table = ''[, $set = NULL]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $set (array) – An associative array of field/value pairs
-
- |
-
-Returns: | TRUE on success, FALSE on failure
- |
-
-Return type: | bool
- |
-
-
-
-Compiles and executes a REPLACE statement.
-
-
-
--
-delete([$table = ''[, $where = ''[, $limit = NULL[, $reset_data = TRUE]]]])
-
-
-
-
-Parameters: |
-- $table (mixed) – The table(s) to delete from; string or array
-- $where (string) – The WHERE clause
-- $limit (int) – The LIMIT clause
-- $reset_data (bool) – TRUE to reset the query “write” clause
-
- |
-
-Returns: | CI_DB_query_builder instance (method chaining) or FALSE on failure
- |
-
-Return type: | mixed
- |
-
-
-
-Compiles and executes a DELETE query.
-
-
-
--
-truncate([$table = ''])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-
- |
-
-Returns: | TRUE on success, FALSE on failure
- |
-
-Return type: | bool
- |
-
-
-
-Executes a TRUNCATE statement on a table.
-
-
Note
-
If the database platform in use doesn’t support TRUNCATE,
-a DELETE statement will be used instead.
-
-
-
-
--
-empty_table([$table = ''])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-
- |
-
-Returns: | TRUE on success, FALSE on failure
- |
-
-Return type: | bool
- |
-
-
-
-Deletes all records from a table via a DELETE statement.
-
-
-
--
-get_compiled_select([$table = ''[, $reset = TRUE]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $reset (bool) – Whether to reset the current QB values or not
-
- |
-
-Returns: | The compiled SQL statement as a string
- |
-
-Return type: | string
- |
-
-
-
-Compiles a SELECT statement and returns it as a string.
-
-
-
--
-get_compiled_insert([$table = ''[, $reset = TRUE]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $reset (bool) – Whether to reset the current QB values or not
-
- |
-
-Returns: | The compiled SQL statement as a string
- |
-
-Return type: | string
- |
-
-
-
-Compiles an INSERT statement and returns it as a string.
-
-
-
--
-get_compiled_update([$table = ''[, $reset = TRUE]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $reset (bool) – Whether to reset the current QB values or not
-
- |
-
-Returns: | The compiled SQL statement as a string
- |
-
-Return type: | string
- |
-
-
-
-Compiles an UPDATE statement and returns it as a string.
-
-
-
--
-get_compiled_delete([$table = ''[, $reset = TRUE]])
-
-
-
-
-Parameters: |
-- $table (string) – Table name
-- $reset (bool) – Whether to reset the current QB values or not
-
- |
-
-Returns: | The compiled SQL statement as a string
- |
-
-Return type: | string
- |
-
-
-
-Compiles a DELETE statement and returns it as a string.
-
-
-
-
-
-