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WHERE substring(ADDDATE( '$checkDate', $before ),6,10)=substring(DATE_FORMAT(birthday,'%Y-%m-%d'),6,10)
$dates ÌìÄÚÉúÈյĿͻ§Î´¿¼Âǵ½Æ½Äê¡¢ÈòÄ꣺£º
   $sql.=" (dayofyear( birthday )-dayofyear( '$checkDate' )
    BETWEEN 0 AND $dates
    OR dayofyear( ADDDATE( birthday, $dates ) ) - dayofyear( ADDDATE( '$checkDate', $dates ) )
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select formid from GaiaSaver_BUG group by formid having count(*)>1
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SQL HexString Óë Binary »¥»»

HexString to Binary:
DECLARE @y CHAR(34)
SET @y = '0x499104dc92dd27499da9ad8f56dcb437'
DECLARE @x BINARY(16)
DECLARE @sql NVARCHAR(200)
SET @sql = 'SELECT @x = ' + @y
EXEC sp_executesql
@sql,
N'@x BINARY(16) OUTPUT',
@x OUTPUT
SELECT @x
Binary to HexString:
DECLARE @a VARBINARY(20)
SET ......

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--> Title  : SQL ServerÖ®·Ö²¼Ê½ÊÂÎñ
 
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