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updates (#806)
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‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/addinterval.md

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@@ -26,51 +26,58 @@ ADD_SECONDS(<exp0>, <expr1>)
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```sql
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SELECT to_date(18875), add_years(to_date(18875), 2);
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+----------------+------------------------------+
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| to_date(18875) | add_years(to_date(18875), 2) |
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+----------------+------------------------------+
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| 2021-09-05 | 2023-09-05 |
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+----------------+------------------------------+
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┌───────────────────────────────────────────────┐
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│ to_date(18875) │ add_years(to_date(18875), 2) │
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├────────────────┼──────────────────────────────┤
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│ 2021-09-05 │ 2023-09-05 │
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└───────────────────────────────────────────────┘
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SELECT to_date(18875), add_quarters(to_date(18875), 2);
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+----------------+---------------------------------+
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| to_date(18875) | add_quarters(to_date(18875), 2) |
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+----------------+---------------------------------+
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| 2021-09-05 | 2022-03-05 |
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+----------------+---------------------------------+
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┌──────────────────────────────────────────────────┐
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│ to_date(18875) │ add_quarters(to_date(18875), 2) │
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├────────────────┼─────────────────────────────────┤
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│ 2021-09-05 │ 2022-03-05 │
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└──────────────────────────────────────────────────┘
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SELECT to_date(18875), add_months(to_date(18875), 2);
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+----------------+-------------------------------+
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| to_date(18875) | add_months(to_date(18875), 2) |
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+----------------+-------------------------------+
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| 2021-09-05 | 2021-11-05 |
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+----------------+-------------------------------+
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┌────────────────────────────────────────────────┐
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│ to_date(18875) │ add_months(to_date(18875), 2) │
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├────────────────┼───────────────────────────────┤
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│ 2021-09-05 │ 2021-11-05 │
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└────────────────────────────────────────────────┘
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SELECT to_date(18875), add_days(to_date(18875), 2);
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+----------------+-----------------------------+
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| to_date(18875) | add_days(to_date(18875), 2) |
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+----------------+-----------------------------+
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| 2021-09-05 | 2021-09-07 |
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+----------------+-----------------------------+
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┌──────────────────────────────────────────────┐
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│ to_date(18875) │ add_days(to_date(18875), 2) │
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├────────────────┼─────────────────────────────┤
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│ 2021-09-05 │ 2021-09-07 │
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└──────────────────────────────────────────────┘
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SELECT to_datetime(1630833797), add_hours(to_datetime(1630833797), 2);
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+----------------------------+---------------------------------------+
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| to_datetime(1630833797) | add_hours(to_datetime(1630833797), 2) |
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+----------------------------+---------------------------------------+
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| 2021-09-05 09:23:17.000000 | 2021-09-05 11:23:17.000000 |
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+----------------------------+---------------------------------------+
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┌─────────────────────────────────────────────────────────────────┐
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│ to_datetime(1630833797) │ add_hours(to_datetime(1630833797), 2) │
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├─────────────────────────┼───────────────────────────────────────┤
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│ 2021-09-05 09:23:17 │ 2021-09-05 11:23:17 │
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└─────────────────────────────────────────────────────────────────┘
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SELECT to_datetime(1630833797), add_minutes(to_datetime(1630833797), 2);
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+----------------------------+-----------------------------------------+
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| to_datetime(1630833797) | add_minutes(to_datetime(1630833797), 2) |
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+----------------------------+-----------------------------------------+
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| 2021-09-05 09:23:17.000000 | 2021-09-05 09:25:17.000000 |
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+----------------------------+-----------------------------------------+
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┌───────────────────────────────────────────────────────────────────┐
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│ to_datetime(1630833797) │ add_minutes(to_datetime(1630833797), 2) │
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├─────────────────────────┼─────────────────────────────────────────┤
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│ 2021-09-05 09:23:17 │ 2021-09-05 09:25:17 │
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└───────────────────────────────────────────────────────────────────┘
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SELECT to_datetime(1630833797), add_seconds(to_datetime(1630833797), 2);
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+----------------------------+-----------------------------------------+
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| to_datetime(1630833797) | add_seconds(to_datetime(1630833797), 2) |
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+----------------------------+-----------------------------------------+
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| 2021-09-05 09:23:17.000000 | 2021-09-05 09:23:19.000000 |
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+----------------------------+-----------------------------------------+
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┌───────────────────────────────────────────────────────────────────┐
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│ to_datetime(1630833797) │ add_seconds(to_datetime(1630833797), 2) │
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├─────────────────────────┼─────────────────────────────────────────┤
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│ 2021-09-05 09:23:17 │ 2021-09-05 09:23:19 │
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└───────────────────────────────────────────────────────────────────┘
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```

‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/date-add.md

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Original file line numberDiff line numberDiff line change
@@ -26,9 +26,11 @@ The function returns a value of the same type as the `<date_or_time_expr>` argum
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Query:
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```sql
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SELECT date_add(YEAR, 1, to_date('2018-01-02'));
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+---------------------------------------------------+
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| DATE_ADD(YEAR, INTERVAL 1, to_date('2018-01-02')) |
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+---------------------------------------------------+
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| 2019-01-02 |
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+---------------------------------------------------+
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┌──────────────────────────────────────────┐
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│ date_add(year, 1, to_date('2018-01-02')) │
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│ Date │
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├──────────────────────────────────────────┤
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│ 2019-01-02 │
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└──────────────────────────────────────────┘
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```

‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/date-diff.md

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SELECT task_name, end_date - start_date AS duration
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FROM tasks;
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task_name|duration|
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---------+--------+
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Task 1 | 5|
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Task 2 | 7|
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Task 3 | 3|
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┌────────────────────────────────────┐
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│ task_name │ duration │
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├──────────────────┼─────────────────┤
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│ Task 1 │ 5 │
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│ Task 2 │ 7 │
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│ Task 3 │ 3 │
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└────────────────────────────────────┘
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```

‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/date-part.md

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```sql
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SELECT NOW();
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now() |
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---------------------+
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2023-10-16 02:09:28.0|
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┌────────────────────────────┐
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│ now() │
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├────────────────────────────┤
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│ 2024-05-22 02:55:52.954761 │
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└────────────────────────────┘
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SELECT DATE_PART(DAY, NOW());
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date_part(day, now())|
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---------------------+
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┌───────────────────────┐
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│ date_part(day, now()) │
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├───────────────────────┤
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│ 22 │
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└───────────────────────┘
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-- October 16, 2023, is a Monday
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SELECT DATE_PART(DOW, NOW());
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date_part(dow, now())|
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---------------------+
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1|
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┌───────────────────────┐
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│ date_part(dow, now()) │
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├───────────────────────┤
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│ 3 │
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└───────────────────────┘
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-- October 16, 2023, is the 289th day of the year
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SELECT DATE_PART(DOY, NOW());
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date_part(doy, now())|
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---------------------+
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┌───────────────────────┐
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│ date_part(doy, now()) │
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├───────────────────────┤
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│ 143 │
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└───────────────────────┘
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55-
SELECT DATE_PART(MONTH, TO_DATE('2022-05-13'));
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SELECT DATE_PART(MONTH, TO_DATE('2024-05-21'));
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date_part(month, to_date('2022-05-13'))|
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---------------------------------------+
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5|
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┌─────────────────────────────────────────┐
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│ date_part(month, to_date('2024-05-21')) │
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│ UInt8 │
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├─────────────────────────────────────────┤
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│ 5 │
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└─────────────────────────────────────────┘
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```

‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/date-sub.md

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@@ -23,12 +23,12 @@ The function returns a value of the same type as the `<date_or_time_expr>` argum
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## Examples
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Query:
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```sql
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SELECT date_sub(YEAR, 1, to_date('2018-01-02'));
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+---------------------------------------------------+
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| DATE_SUB(YEAR, INTERVAL 1, to_date('2018-01-02')) |
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+---------------------------------------------------+
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| 2017-01-02 |
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+---------------------------------------------------+
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┌──────────────────────────────────────────┐
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│ date_sub(year, 1, to_date('2018-01-02')) │
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├──────────────────────────────────────────┤
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│ 2017-01-02 │
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└──────────────────────────────────────────┘
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```

‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/date-trunc.md

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```sql
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select date_trunc(month, to_date('2022-07-07'));
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+------------------------------------------+
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| date_trunc(month, to_date('2022-07-07')) |
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+------------------------------------------+
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| 2022-07-01 |
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+------------------------------------------+
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28+
┌──────────────────────────────────────────┐
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│ date_trunc(month, to_date('2022-07-07')) │
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├──────────────────────────────────────────┤
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│ 2022-07-01 │
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└──────────────────────────────────────────┘
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```

‎docs/en/sql-reference/20-sql-functions/05-datetime-functions/extract.md

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```sql
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SELECT NOW();
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now() |
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---------------------+
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2023-10-16 02:09:28.0|
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┌────────────────────────────┐
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│ now() │
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├────────────────────────────┤
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│ 2024-05-22 03:00:35.977589 │
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└────────────────────────────┘
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SELECT EXTRACT(DAY FROM NOW());
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extract(day from now())|
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-----------------------+
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┌─────────────────────────┐
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│ extract(day from now()) │
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├─────────────────────────┤
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│ 22 │
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└─────────────────────────┘
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-- October 16, 2023, is a Monday
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SELECT EXTRACT(DOW FROM NOW());
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extract(dow from now())|
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-----------------------+
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1|
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┌─────────────────────────┐
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│ extract(dow from now()) │
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├─────────────────────────┤
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│ 3 │
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└─────────────────────────┘
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-- October 16, 2023, is the 289th day of the year
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SELECT EXTRACT(DOY FROM NOW());
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extract(doy from now())|
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-----------------------+
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┌─────────────────────────┐
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│ extract(doy from now()) │
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├─────────────────────────┤
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│ 143 │
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└─────────────────────────┘
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SELECT EXTRACT(MONTH FROM TO_DATE('2022-05-13'));
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extract(month from to_date('2022-05-13'))|
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-----------------------------------------+
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5|
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┌───────────────────────────────────────────┐
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│ extract(month from to_date('2022-05-13')) │
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│ UInt8 │
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├───────────────────────────────────────────┤
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│ 5 │
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└───────────────────────────────────────────┘
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```

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