跳到主要内容

toStartOfMonth

Rounds down a date or date with time to the first day of the month. Returns the date.

Syntax

toStartOfMonth( <expr> )

Arguments

ArgumentsDescription
<expr>date/datetime

Return Type

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

Examples

SELECT toStartOfMonth(to_date(18869));
+-------------------------------+
| toStartOfMonth(to_date(18869)) |
+-------------------------------+
| 2021-08-01 |
+-------------------------------+

SELECT toStartOfMonth(to_datetime(1630812366));
+----------------------------------------+
| toStartOfMonth(to_datetime(1630812366)) |
+----------------------------------------+
| 2021-09-01 |
+----------------------------------------+