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Hiw to fast delete rows from table in relation?
Posted by: Andrzej Borucki
Date: January 22, 2017 02:21AM

I have two tables:
general:
hash = primary key
code
other

detail:
hash+index = primary key
other

I want delete all rows from general where code=:code and from detail where general.hash=detail.hash
First job is easy:
delete from general where code=:code
Ho do second?

delete from detail where hash = select hash from general where code=:code
?

delete from detail left join general on detail.hash=general.hash where general.code = :code
?

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Hiw to fast delete rows from table in relation?
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January 22, 2017 02:21AM


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