Does table always have the primary key?
Does table always have the primary key? Is the primary key effect for performance of the table?
I have 4000 rows in two tables (example table store and table dstore)
I use query like this "SELECT * FROM STORE S, DSTORE D WHERE D.KODE=S.KODE"
The data is slow when I use that query. Is that effect for not use primary key?
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Does table always have the primary key?
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November 26, 2008 06:38AM
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