Comments on: SQL SERVER – Three Rules to Use UNION http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/ Personal Notes of Pinal Dave Thu, 09 Feb 2012 08:55:56 +0000 hourly 1 http://wordpress.com/ By: madhivanan http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-170591 Thu, 22 Sep 2011 08:25:50 +0000 http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-170591 Use this

select col1, col2 from table1
union
select col1,null from table2

]]> By: Rameez Shaikh http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-170569 Thu, 22 Sep 2011 07:36:52 +0000 http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-170569 Suppose, I don’t have same number of parameters for second table. I want one field which is not present in second table. But, I want to keep that column. It should show null values for second table which doesn’t have that field and should show data for the table which has that field.

]]> By: SQL SERVER - Introduction and Example of UNION and UNION ALL Journey to SQL Authority with Pinal Dave http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-47512 Thu, 26 Feb 2009 12:33:30 +0000 http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-47512 [...] UNION RULES [...]

]]> By: Jwalant Natvarlal Soneji http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-15342 Mon, 15 Oct 2007 02:52:36 +0000 http://blog.sqlauthority.com/2007/10/14/sql-server-three-rules-to-use-union/#comment-15342 But if union and then group by is good or directly using inner or outer join is better?

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