Improve company productivity with a Business Account.Sign Up

x
?
Solved

SQL stored procedure

Posted on 2011-09-28
5
Medium Priority
?
221 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:Kiran Sonawane
ID: 36716806
select * from your_database_name..your_table_name
0
 
LVL 93

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 2000 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

What Kind of Coding Program is Right for You?

There are many ways to learn to code these days. From coding bootcamps like Flatiron School to online courses to totally free beginner resources. The best way to learn to code depends on many factors, but the most important one is you. See what course is best for you.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

When trying to connect from SSMS v17.x to a SQL Server Integration Services 2016 instance or previous version, you get the error “Connecting to the Integration Services service on the computer failed with the following error: 'The specified service …
One of the most important things in an application is the query performance. This article intends to give you good tips to improve the performance of your queries.
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.
Viewers will learn how to use the SELECT statement in SQL to return specific rows and columns, with various degrees of sorting and limits in place.

579 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