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iboumiza
Starting Member
9 Posts |
 Posted - 2011-08-16 : 09:26:48
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| Hi,what I need to do is: 1- Table 1 is old and contains some no longer existing clients name 2- Table 2 is new and do not contain non existing clients names How do I design the query in a way the code look in table 2 and remove from table 1 the no longer existing clients, please ? Thanks |
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webfred
Master Smack Fu Yak Hacker
8781 Posts |
Posted - 2011-08-17 : 02:19:58
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delete t1from table1 as t1left join table2 as t2 on t1.id = t2.idwhere t2.id is null
No, you're never too old to Yak'n'Roll if you're too young to die. |
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Remove non existing clients in T1 based on T2