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 « SQL Server Journey with SQL Authority

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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

March 3, 2008 by pinaldave

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.

Reference : Pinal Dave (http://blog.SQLAuthority.com)

Posted in Database, DBA, Pinal Dave, SQL, SQL Authority, SQL Constraint and Keys, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology | 3 Comments

3 Responses

on March 17, 2008 at 4:37 pm | Reply sudhanshu

i want a trick and methods of sql
on March 17, 2008 at 4:39 pm | Reply sudhanshu

In a sql how many null value take unique constraint
on May 13, 2008 at 9:59 pm | Reply honey

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

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About Pinal Dave

Pinal Dave is a Microsoft Technology Evangelist (Database and BI). He has written over 2000 articles on the subject on his blog at http://blog.sqlauthority.com. Along with 8+ years of hands on experience he holds a Masters of Science degree and a number of certifications, including MCTS, MCDBA and MCAD (.NET). He is co-author of three SQL Server books - SQL Server Programming, SQL Wait Stats and SQL Server Interview Questions and Answers. Prior to joining Microsoft he was awarded Microsoft MVP award for three continuous years for his contribution in community.

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