Merge pull request #4 from fraucs/master

Add sql lifehacks

Author: m4oc

mysql/backupCreationAutoIncrementField.sql

@@ -0,0 +1,26 @@
+SELECT
+CONCAT(
+'ALTER TABLE `',
+TABLE_NAME,
+'` ',
+'MODIFY COLUMN `',
+COLUMN_NAME,
+'` ',
+IF(UPPER(DATA_TYPE) = 'INT',
+REPLACE(
+SUBSTRING_INDEX(
+UPPER(COLUMN_TYPE),
+')',
+1
+),
+'INT',
+'INTEGER'
+),
+UPPER(COLUMN_TYPE)
+),
+') UNSIGNED NOT NULL AUTO_INCREMENT;'
+)
+FROM information_schema.COLUMNS
+WHERE TABLE_SCHEMA = '<DATABASE>' AND
+EXTRA = UPPER('AUTO_INCREMENT')
+ORDER BY TABLE_NAME ASC

mysql/backupCreationIndexes.sql

@@ -0,0 +1,40 @@
+SELECT
+CONCAT(
+'ALTER TABLE `',
+TABLE_NAME,
+'` ',
+'ADD ',
+IF(NON_UNIQUE = 1,
+CASE UPPER(INDEX_TYPE)
+WHEN 'FULLTEXT' THEN 'FULLTEXT INDEX'
+WHEN 'SPATIAL' THEN 'SPATIAL INDEX'
+ELSE CONCAT('INDEX `',
+INDEX_NAME,
+'` USING ',
+INDEX_TYPE
+)
+END,
+IF(UPPER(INDEX_NAME) = 'PRIMARY',
+CONCAT('PRIMARY KEY USING ',
+INDEX_TYPE
+),
+CONCAT('UNIQUE INDEX `',
+INDEX_NAME,
+'` USING ',
+INDEX_TYPE
+)
+)
+),
+'(',
+GROUP_CONCAT(
+DISTINCT
+CONCAT('`', COLUMN_NAME, '`')
+ORDER BY SEQ_IN_INDEX ASC
+SEPARATOR ', '
+),
+');'
+) AS 'Show_Add_Indexes'
+FROM information_schema.STATISTICS
+WHERE TABLE_SCHEMA = '<DATABASE>'
+GROUP BY TABLE_NAME, INDEX_NAME
+ORDER BY TABLE_NAME ASC, INDEX_NAME ASC