Solved

SQL stored procedure

Posted on 2011-09-28
5
212 Views
Last Modified: 2012-08-13
Is there a way to make the name of the database used in a stored procedure a variable.  Can I have 1 stored procedure that runs in different databases based upon the name of the  database name I pass in as a parameter.  

"a USE database statement is not allowed in a procedure, function or trigger."  = error from SQL
0
Comment
Question by:dastaub
5 Comments
 
LVL 17

Expert Comment

by:sonawanekiran
ID: 36716806
select * from your_database_name..your_table_name
0
 
LVL 92

Expert Comment

by:Patrick Matthews
ID: 36716807
If you pass in the db name as a parameter, then you could try something like this in your code:

IF @db_name = 'db1' SELECT * FROM db1.dbo.MyTable
IF @db_name = 'db2' SELECT * FROM db2.dbo.MyTable
IF @db_name = 'db3' SELECT * FROM db3.dbo.MyTable
-- et cetera

Open in new window


If you do not want to specify the databases up front, you will have to use dynamic SQL.
0
 
LVL 25

Accepted Solution

by:
Lee Savidge earned 500 total points
ID: 36716836
Yes, but the simplest thing to use is dynamic SQL.
create procedure myProc (@nvchDB nvarchar(100))
as
begin
    exec ('select * from ' + @nvchDB + '.dbo.myTable')
end
go

Open in new window

0
 

Author Comment

by:dastaub
ID: 36716988
exec ('use ' + @nvchDB )

i tried this, but it appears to be ignored by the stored procedure.  if this worked, I would only have to change 1 line of code
0
 
LVL 25

Expert Comment

by:Lee Savidge
ID: 36717457
You can't do that.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
In this article I will describe the Copy Database Wizard method as one possible migration process and I will add the extra tasks needed for an upgrade when and where is applied so it will cover all.
Via a live example, show how to extract insert data into a SQL Server database table using the Import/Export option and Bulk Insert.
Viewers will learn how to use the INSERT statement to insert data into their tables. It will also introduce the NULL statement, to show them what happens when no value is giving for any given column.

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question