Is this statement true or false? All databases must be in third normal form?

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Can we use a Restricted packaged procedure in WHEN_TEXT_ITEM trigger ?

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What's the difference between 'union' and 'union all' ?

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Is there an example how to configure externalfileaccess setting in firebird.conf?

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What is dbms used for?

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How to drop all foreign keys in database?

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What are the two types of indexes and explain them in detail? Or what's the difference between clustered and non-clustered indexes?

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IF Statements BLOCK 1 . IF a >= b THEN do_this …..; ELSE do_that….; END IF BLOCK 2 . IF a < b THEN do_that …..; ELSE do_this….; END IF; • Given any pair of non-NULL values for “a” and”b”, will Block 1 and Block 2 do the same thing? • What if either “a” or”b” (or both) is NULL?

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Explain the Importance of Data Normalization.

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Define join types.

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Difference between data and information, and how are they related in a database?

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Mention some advantages of using dbms.

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