SQL SERVER – Sharpen Your Basic SQL Server Skills – Learn the distinctions between unique constraint and primary key constraint and the easiest way to get random rows from a table

Read my article in SQL Server Magazine March 2007 Edition

I will be not able to post complete article here due to copyright issues. Please visit the link above to read the article. [Articles are relocated so links are disabled]

Reference : Pinal Dave (https://blog.sqlauthority.com)

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3 Comments. Leave new

  • i want a trick and methods of sql

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  • In a sql how many null value take unique constraint

    Reply
  • HELLO SIR
    TELL BE ABOUT CONSTRAIN AND HOW TO IMLEMENT IT IN THE C# APPLICATION .
    WHEN I CONNECT SQL TABLE WITH APPLICATION WITH CONSTRAINT IT MAKS PROBLEM.]
    BYYYYYYYYYYYYY

    Reply

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