What is the usage of the distinct keyword?

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Explain 3 basic parts of a trigger.

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Which are the different character-manipulation functions in sql?

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HOW CAN I FIND MAX SAL ,ENAME FROM EMP TABLE.

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Can there be 2 primary keys in a table?

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I have a procedure in a procedure. The inner procedure contains out parameter. How I can call the inner procedure in the out procedure and send the inner procedure parameter value(out parameter value) into out procedure?

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How to recompile a already made trigger?

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What are the advantages of indexing?

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What is sql in oracle?

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what is a composite primary key ? : Sql dba

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What are different functions in sql?

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What is sql*loader and what is it used for?

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