Question

I have two tables which are linked with foreign key relationship. Both tables have Created Date columns. How can I find all matching rows where time difference is 5 minutes plus or minus.

Answer 1

You’ll need to use the timestampdiff function and the abs function, something like this:

select * from table1 a, table2 b where a.ID=b.FOREIGNID and ABS(TIMESTAMPDIFF(MINUTE,a.CREATEDDATE,b.CREATEDDATE)) > 5

Documentation for both functions:

http://dev.mysql.com/doc/refman/5.0/en/mathematical-functions.html#function_abs

http://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html#function_timestampdiff