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doris/docs/documentation/en/sql-reference/sql-functions/date-time-functions/datediff_EN.md
xy720 7a0c7f45b2 Add English documents for Doris (#1719) 
The english documents is translated by machine. So It may has some mistake.
We will fix them later
2019-08-29 13:47:15 +08:00

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datediff

Description '35;'35;' 35; Syntax

'DATETIME DATEDIFF (DATETIME expr1,DATETIME expr2)'

Expr1 - expr2 is calculated and the result is accurate to the sky.

Expr1 and expr2 parameters are valid date or date/time expressions.

Note: Only the date part of the value participates in the calculation.

'35;'35; example

MySQL > select DateDiff (CAST ('2007 -12 -31 23:59:59 'AS DATETIME), CAST (2007 -12 -30' AS DATETIME));
+-----------------------------------------------------------------------------------+
;datediff (CAST ('2007 -12 -31 23:59:59 'AS DATETIME), CAST ('2007 -12 -30' THE DATETIME)) 124;
+-----------------------------------------------------------------------------------+
|                                                                                 1 |
+-----------------------------------------------------------------------------------+

mysql > select datediff (CAST ('2010 -11 -30 23:59:59 'AS DATETIME), CAST ('2010 -12 -31' AS DATETIME));
+-----------------------------------------------------------------------------------+
124th; DateDiff (CAST ('2010 -11 -30 23:59:59 'AS DATETIME), CAST ('2010 -12 -31' THE DATETIME))
+-----------------------------------------------------------------------------------+
|                                                                               -31 |
+-----------------------------------------------------------------------------------+

##keyword DATEDIFF