Re: Improve performance when Insert into ... select ...
Posted by:
Lyu Joey
Date: December 15, 2016 08:18PM
The main procedure structure is like this:
WHILE TO_DAYS(syncDate) <= TO_DAYS(Now()) DO
call dw.sp1(syncDate);
call dw.sp2(syncDate);
call dw.sp3(syncDate);
call dw.sp4(syncDate);
call dw.sp5(syncDate);
SET syncDate = DATE_ADD(syncDate, INTERVAL 1 DAY);
END WHILE;
the syncDate initial value is '2016-01-01', each sub-sp has 3 or 4 'insert into ... select ’ SQL statements
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