What are the differences between interval year to month and interval day to second?
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I just want to maintain data like an employee can belongs to 3 or more departments . We can resolve this by using composite key but it avoids normalization rules. So Can anyone tell me how can I maintain data.
Explain table?
How to define a data source name (dsn) in odbc manager?
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How to use "out" parameter properly?
How to use "in" parameter properly?
what is null value?
How to apply filtering criteria at group level in oracle?
What are joins..how many types of joins are there?
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