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DB2-Fetch Rules
After I returned from my work, I got an idea to write a post on Fetch. I am writing it by listening to a popular mind music. FETCH FIRST n ROW/ROWS ONLY Default is ‘1’. It improves performance, if we...
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DB2 – FETCH ,OPTIMIZE, QUERYNO, ISOLATION Clauses
These are important clauses in SELECT statements of DB2. FETCH FIRST 1 ROW ONLY => Will limit the number of rows from the select statement. It avoids unnecessary I/O for select statements OPTIMIZE...
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