What do you understand by aggregation and atomicity?

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I have a table which has lot of inserts, is it a good database design to create indexes on that table?

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Enlist the advantages of dbms.

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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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What are the different types of keys in database?

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what is datapump? Difference between exp and expdp?

2 Answers   Capital IQ, TCS, WNS,

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How can you CALL Reports from Forms4.0 ?

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Describe the difference between data and database administration.

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What is rdbms table?

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1)what is the difference between view and materilized view? 2)what is the difference between delete and truncate? 3)what is the difference between migration and upgration? 4)what is the difference between RMAN HOT BACKUP and normal hot backup?

2 Answers   3i Infotech,

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How to prevent concurrent access to my data?

0 Answers   HCL,

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What do you understand by unique key?

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