Does sql profiler affect performance?
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What is rownum and rowid?
Can I join the same table twice?
Hi all, I am going to write oracle certification. Can anyone send me the dumps available if any for OCA exam? Its really very urgent, prompt response will help me alot..
Can function return multiple values in sql?
Why query optimization is needed?
i have doubt that any one tell ref cursor comes in sql pl/sql? pls clarify?
How will you select unique values from a list of records?
What are the datatypes a available in PL/SQL ?
How do I turn a list into a table?
Can a key be both primary and foreign?
How can we implement rollback or commit statement in a trigger?
Enlist the advantages of sql.