SQL Union clause Archives - Page 3 of 3 - SQL Authority with Pinal Dave

SQL SERVER – Introduction and Example of UNION and UNION ALL

October 15, 2008

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Joins, SQL Scripts, SQL Union clause

It is very much interesting when I get request from blog reader to re-write my previous articles. I have received few request to rewrite my article SQL SERVER – Union vs. Union All – Which is better for performance? wi.th examples. I request you to read my previous article first…

SQL SERVER – Three Rules to Use UNION

October 14, 2007

Pinal Dave

SQL, SQL Performance, SQL Server, SQL Tips and Tricks

SQL Joins, SQL Scripts, SQL Union clause

I have previously written two articles on UNION and they are quite popular. I was reading SQL book Sams Teach Yourself Microsoft SQL Server T-SQL in 10 Minutes By Ben Forta and I came across three rules of UNION and I felt like mentioning them here. UNION RULES A UNION…

SQL SERVER – Insert Multiple Records Using One Insert Statement – Use of UNION ALL

June 8, 2007

Pinal Dave

SQL Tips and Tricks

Best Practices, Database, SQL Scripts, SQL Server, SQL Union clause

Update: For SQL Server 2008 there is even better method of Row Construction, please read it here : SQL SERVER – 2008 – Insert Multiple Records Using One Insert Statement – Use of Row Constructor

This is very interesting question I have received from new developer. How can I insert multiple values in table using only one insert? Now this is interesting question. When there are multiple records are to be inserted in the table following is the common way using T-SQL.