datediff description Syntax example keyword datediff description Syntax DATETIME DATEDIFF(DATETIME expr1,DATETIME expr2) 计算expr1 - expr2，结果精确到天。 expr1 和 expr2 参数是合法的...

Datetimes and Timezones Basic Usage Saving Datetimes with Timezones Reading Time Table of Contents Previous topic Next topic This Page Quick search Datetimes and Timezo...

time_round description Syntax example keywords time_round description Syntax DATETIME TIME_ROUND ( DATETIME expr ) DATETIME TIME_ROUND ( DATETIME expr , INT period ) ...

time_round description Syntax example keyword time_round description Syntax DATETIME TIME_ROUND(DATETIME expr) DATETIME TIME_ROUND(DATETIME expr, INT period) DATETIME ...

time_round description Syntax example keywords time_round description Syntax DATETIME TIME_ROUND(DATETIME expr) DATETIME TIME_ROUND(DATETIME expr, INT period) DATETIME...

year_ceil description Syntax example keywords Best Practice year_ceil description Syntax DATETIME YEAR_CEIL ( DATETIME datetime ) DATETIME YEAR_CEIL ( DATETIME datetime...

month_ceil description Syntax example keywords Best Practice month_ceil description Syntax DATETIME MONTH_CEIL ( DATETIME datetime ) DATETIME MONTH_CEIL ( DATETIME date...

minute_floor description Syntax example keywords Best Practice minute_floor description Syntax DATETIME MINUTE_FLOOR ( DATETIME datetime ) DATETIME MINUTE_FLOOR ( DATET...

time_round description Syntax example keyword time_round description Syntax DATETIME TIME_ROUND(DATETIME expr) DATETIME TIME_ROUND(DATETIME expr, INT period) DATETIME ...

Date/Time and Interval Functions and Operators Intervals Operators Functions CURRENT_DATE/CURDATE CURRENT_TIME/CURTIME CURRENT_TIMESTAMP DATE_ADD/DATEADD/TIMESTAMP_ADD/TIM...