Can a table have 2 primary keys?

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How to genrate automaticlly empid like gt001

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What stored by the master? : sql server database administration

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what is a self join? : Sql server database administration

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can you instantiate a com object by using t-sql? : Sql server database administration

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What is normalization process?

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Why use identity in sql server?

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What is the difference between in and exists. Ex: select * from emp where empno in(....) and select * from emp where empno exists(....) What is the difference between a Join and Union and Union and UnionAll.

5 Answers   ABC, Accenture,

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Does transparent data encryption provide encryption when transmitting data across the network?

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i use few third party softwares. they r all having their own databases . but the data is repeated in all these databases - say a person is in all the three databases, but his name is stoared in diff format in all databases i want to create a centralised database ,and i dont want to re-enter the records . using the exisating records how can i build a centralised database?

1 Answers   Fidelity,

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What is scheduled job and how to create it?

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What is a derived table?

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