Query Data from 2 Databases

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May 2nd, 2008, 08:16 AM

djfubar

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Query - General - Query Data from 2 Databases

Hi There,

Does anyone know a query data from 2 databases?

Thanks

May 2nd, 2008, 08:43 AM

mehere

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if you're querying data from a another database, you just need to use the DB name, owner name and table name in the query. for example:

Code:

SELECT field1, field2, column1 FROM tbl_TableName t1
INNER JOIN dbName.dbo.tbl_TableName2 t2 ON t1.field1 = t2.column2

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May 7th, 2008, 08:24 AM

djfubar

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Quote:

Originally Posted by mehere

if you're querying data from a another database, you just need to use the DB name, owner name and table name in the query. for example:

Code:

SELECT field1, field2, column1 FROM tbl_TableName t1
INNER JOIN dbName.dbo.tbl_TableName2 t2 ON t1.field1 = t2.column2

Thanks for the example. Ive got the query to work in query analyzer but not on my asp page.

the following is the sql

Code:

SELECT username FROM employee t1 INNER JOIN ITSUPPORTSLA.dbo.caselist t2 ON t1.username = t2.contact WHERE username = 'test' GROUP BY username

im executing the connection which relates to the employee table

Code:

SET rsPurchase = objConn.Execute(SQLQuery)

this is the error message im getting

Code:

Error Type:
Microsoft OLE DB Provider for SQL Server (0x80040E37)
Invalid object name 'ITSUPPORTSLA.dbo.caselist'.

Is it possible to excute multiple connections?

Any help would be great.

May 7th, 2008, 09:10 AM

mehere

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is the logon you're using in your ASP page have access to the other Database? if not, then it won't work. yes you can have multiple connections in your page and execute them, but not when you're using a join like that.

May 7th, 2008, 09:56 AM

djfubar

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Quote:

Originally Posted by mehere

ive got connections to both dbs

Code:

		Set objConnection=Server.CreateObject("ADODB.Connection")  
		objConnection.Open Application("ITSupportSLA")

		Set objConn=Server.CreateObject("ADODB.Connection")  
		objConn.Open Application("MainDb")

The problem is that im only executing one of the connections for the sql query??

Code:

SET rsPurchase = objConn.Execute(SQLQuery)

May 7th, 2008, 10:00 AM

mehere

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that's what i'm saying ... you can't use 2 connections with a JOIN query. if your databases require two different logons, this is not going to work. you would need to query from the first database and then run subsequent queries on the second. the only way the join will work, is if the logon and password for database1 also has access to database2.

May 7th, 2008, 10:04 AM

djfubar

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Quote:

Originally Posted by mehere

gotcha. Ive got an idea on a workaround. thanks for your help.

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