SELECT 1001020; date_diff

ocean base OB

 

 

SELECT
date_diff('second', '2010-11-30 23:59:59', '2010-11-30 23:58:59'),
50<date_diff('second', '2010-11-30 23:59:59', '2010-11-30 23:58:59'),
date_diff('second', '2010-11-30 23:59:59', '2010-11-30 23:58:59')>50,

50<date_diff('second', '2010-11-30 23:59:59', '2010-11-30 23:58:59')<70,
100<date_diff('second', '2010-11-30 23:59:59', '2010-11-30 23:58:59')<70
;

SELECT 100<10<20;

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