What is Histogram?

0 Answers   NIIT,

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write a query find which rows of a table is updated on 2 days before?

3 Answers   TCS,

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I have 2 packages A and B. Now package A references Package B and Package B references Package A. How do you compile such inter-dependent objects in PL/SQL

5 Answers   Doyensys, Infosys, Metric Stream,

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Can you join a table to itself?

0 Answers  

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what is bdb (berkeleydb)? : Sql dba

0 Answers  

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How do you rank data in sql?

0 Answers  

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what is the difference between union and union all

14 Answers   IBM, Luxoft, Oracle,

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Can primary key be changed?

0 Answers  

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How to copy a table in another table with datas?

9 Answers  

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what is an extent ? : Sql dba

0 Answers  

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How can I see all tables in sql?

0 Answers  

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How do I kill a query in postgresql?

0 Answers  

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