update query with join on two tables
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Published on 2010-05-12T03:27:22Z
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2010/05/12
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sql
|postgresql
I have customer and address tables.
query:
select * from addresses a, customers b where a.id = b.id
returns 474 records
For these records, I'd like to add the id of customer table into cid of address table.
Example:
If for the first record the id of customer is 9 and id of address is also 9 then i'd like to insert 9 into cid column of address table.
I tried:
update addresses a, customers b set a.cid = b.id where a.id = b.id
but this does not seem to work.
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