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TO_START_OF_MONTH

Rounds down a date or date with time (timestamp/datetime) to the first day of the month. Returns the date.

Syntax

TO_START_OF_MONTH(<expr>)

Arguments

ArgumentsDescription
<expr>date/timestamp

Return Type

DATE, returns date in “YYYY-MM-DD” format.

Examples

SELECT
to_start_of_month('2023-11-12 09:38:18.165575');

┌─────────────────────────────────────────────────┐
│ to_start_of_month('2023-11-12 09:38:18.165575')
├─────────────────────────────────────────────────┤
2023-11-01
└─────────────────────────────────────────────────┘
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