Answer Posted / abhishek.421

a sort of primary key..just it allows NULL values

How to drop an index?

548

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For a field in a repeating frame, can the source come from the column which does not exist in the data group which forms the base for the frame ?

1558

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Is the After report trigger fired if the report execution fails ?

2406

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what is the scripts in data base?

1607

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What is where clause in oracle?

534

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What is an anonymous block?

627

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What are the uses of a database trigger?

521

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What do you mean by redo log file mirroring?

562

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what is the difference between data migration and production migration.

1813

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Explain a segment?

621

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Can we commit inside a function in oracle?

562

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What is the disadvantage of User defind function?

1836

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How can you use check constraints for self referential integrity?

526

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What is the usage of save points in oracle database?

533

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What are the different editions of oracle?

593

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