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DATEDIFF
datediff Description Syntax example keywords datediff Description Syntax INT DATEDIFF (DATETIME expr1, DATETIME expr2) Calculate expr1 - expr2, the result is accurate to... -
COUNT
COUNT description Syntax example keywords COUNT description Syntax COUNT([DISTINCT] expr) 用于返回满足要求的行的数目 example MySQL > select count (*) from log_statis group... -
COUNT
COUNT description Syntax example keywords COUNT description Syntax COUNT([DISTINCT] expr) 用于返回满足要求的行的数目 example MySQL > select count (*) from log_statis group... -
COUNT
COUNT description Syntax example keyword COUNT description Syntax COUNT([DISTINCT] expr) 用于返回满足要求的行的数目 example MySQL > select count (*) from log_statis gr... -
DATEDIFF
datediff description Syntax example keywords datediff description Syntax INT DATEDIFF(DATETIME expr1, DATETIME expr2) 计算expr1 - expr2，结果精确到天。 expr1 和 expr2 参数是合法的日期或日期/... -
COUNT
COUNT description Syntax example keyword COUNT COUNT description Syntax COUNT([DISTINCT] expr) 用于返回满足要求的行的数目 example MySQL > select count (*) from log_stat... -
TIME_ROUND
time_round description Syntax example keywords time_round description Syntax DATETIME TIME_ROUND ( DATETIME expr ) DATETIME TIME_ROUND ( DATETIME expr , INT period ) ... -
Data Types
Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ... -
Data Types
Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ... -
Data Types
Data types Date and time types Date Time Datetime Timestamp Interval Convert between date and time types Data types The following table shows the data types supported by ...