How to use order by with union operators in ms sql server?

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What do we have to check in database testing?

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How do you find value of first column before inserting value into the second column in the same table for checking that second column must have different value than first column.

2 Answers   L&T,

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Explain primary key?

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Explain database normalization?

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Why do we partition data?

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Explain the difference between clustered and non-clustered index?

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What are different types of raid levels?

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employee table has employee id ----------- empid ---------------- 1 2 3 3 3 4 5 5 5 6 6 6 7 here the values r repeated two times.how to select the repeated values only.i.e 3,5,6 should alone come.

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What is the parse query button used for?

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Explain data warehousing in sql server?

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Tell me time data type, datetime2, datetimeoffset data type in sql server 2008?

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