Does group by remove duplicates?

0 Answers  

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What are the types of views in sql?

0 Answers  

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What are the default Oracle triggers??

3 Answers   CGI, Tech Mahindra,

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I have a package in which a table was used in a procedure and compiled later i have dropped the table used in the package what would be the status of package specification and body

1 Answers   TCS,

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How can the performance of a trigger be improved?

0 Answers  

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How bulk collect improves performance?

0 Answers  

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What are sql indexes?

0 Answers  

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Differentiate between pl/sql and sql?

0 Answers  

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If we declare constraints Unique and Not null on a single column then it will act as a Primary key, so what is the use of primary key??

3 Answers  

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What does over partition by mean in sql?

0 Answers  

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Is a table valued function object?

0 Answers  

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How can we link a sql database to an existing android app?

0 Answers  

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