What is null in pl/sql?
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how to create a primary key with out creating an index?
what is difference b/w pravite procedures and public procedures?
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What is the need of a partition key?
How many triggers can be applied to a table?
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Can there be 2 primary keys in a table?
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what is self join and what is the requirement of self join? : Sql dba
If records are inserted into table without committing.How to refer to these values in a procedure?
What are the different sql languages?