If I have these tables below:
PLAYERS
ID Name
== ===========
1 Mick
2 Matt
COACHES
ID Name
== ===========
1 Bill
2 Don
And I have a script below to find all tables that has a column called "Name":
SELECT t.name AS table_name FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
WHERE c.name LIKE 'Name'
Which returns the following:
table_name
===========
PLAYERS
COACHES
How can I select all the rows from both tables returned by the query above?
You will have to use dynamic sql, try something like this:
declare @t table( tablename varchar(50))
declare @sql varchar(max)
set @sql = ''
insert into @t
SELECT t.name AS table_name FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
WHERE c.name LIKE 'Name'
select @sql = @sql + 'Select * From ' + tablename + ' union ' from @t
--remove the trailing 'union'
Select @sql = substring(@sql, 1, len(@sql) - 6)
exec (@sql)
The above script creates and executes the following sql
select * from coaches
union
select * from players
Since we are using union
here, it is important that all your tables that have name
as column is of same structure.
See more about dynamic sql from http://msdn.microsoft.com/en-us/library/ms188001.aspx
SELECT p.Id,p.Name,c.Id,c.Name
FROM Players p JOIN Coaches c
ON p.Id=c.Id
May be this can help you.
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