Explain what is an index?

0 Answers  

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How do I truncate a sql log file?

0 Answers  

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What is varchar sql?

0 Answers  

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What are joins in sql?

0 Answers  

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define primary key & secondary key?

2 Answers  

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What's the difference between inner join and left join?

0 Answers  

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If a procedure within a package is invalidated whether the entire package will be invalid and has to be recompiled again?

2 Answers   IBM, TCS,

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What is the difference between DELETE and TRUNCATE?

15 Answers   Johns Hopkins University, Tech Mahindra,

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How many scalar data types are supported in pl/sql?

0 Answers  

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what is top in tsql? : Transact sql

0 Answers  

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What is rank () in sql?

0 Answers  

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Its possible to add more than one primary key for the table

4 Answers  

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