Solved

SQL Query - Query list of databases with identical structure and combine results

Posted on 2014-01-16
6
30 Views
Last Modified: 2016-03-28
I need to query multiple databases that contain the same structure and return the results into a single file.  I can do it with a lot of work by using UNION ALL between each select statement and fully defined db names in the FROM but given that only the DB name is changing between each query it seems like a script would be better in case there are any changes (e.g. adding another field).

Note: DB's are all on the same server

Can anyone provide advice on how to best accomplish this?

Thanks in advance.
0
Comment
Question by:-James-
  • 3
6 Comments
 
LVL 68

Accepted Solution

by:
Qlemo earned 500 total points
ID: 39787105
Create a temp table in one of the databases. Then run an insert statement similar to this:
exec sp_msforeachdb "insert into TheDb..temptbl select * from ?..tbl"

Open in new window

to collect your data. If you want to add the actual db as a column, use '?' .
0
 
LVL 39

Expert Comment

by:lcohan
ID: 39830548
There are a few free tools like:

http://www.apexsql.com/promo/apexsql-diff_free-version.aspx?gclid=CPnLk7zesLwCFU5cfgod2y4AKA

http://dbcomparer.com/

And Microsoft SQL own (which I would recommend):
"SQL Server Data Tools (SSDT) includes a Schema Compare utility that you can use to compare two database definitions."
http://msdn.microsoft.com/en-us/library/hh272690(v=vs.103).aspx
0
 

Author Comment

by:-James-
ID: 39833384
Qlemo - If I understand sp_msforeachdb properly it is going to cycle through every db on the server.  I'm only looking to query from a set of financial databases (17 out of 30 + db's) .  Is there a way to identify the db names and then use a loop to cycle through the db's and union the results?
0
 
LVL 68

Expert Comment

by:Qlemo
ID: 39834222
You'll need to code that as an IF in the SQL executed, like in
exec sp_msforeachdb "if '?' like 'Finance%' insert into TheDb..temptbl select * from ?..tbl"

Open in new window

sp_msforeachtable support a where condition, but sp_msforeachdb does not, sadly.
0
 
LVL 68

Expert Comment

by:Qlemo
ID: 41525187
I've requested that this question be closed as follows:

Accepted answer: 500 points for Qlemo's comment #a39834222

for the following reason:

This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Can't connect to new installation of SQL Server 2016 6 31
Microsoft Azure SQL - create a read only user 2 14
TSQL previous 5 25
Splitting the content of a column in SQL 11 22
Confronted with some SQL you don't know can be a daunting task. It can be even more daunting if that SQL carries some of the old secret codes used in the Ye Olde query syntax, such as: (+)     as used in Oracle;     *=     =*    as used in Sybase …
JSON is being used more and more, besides XML, and you surely wanted to parse the data out into SQL instead of doing it in some Javascript. The below function in SQL Server can do the job for you, returning a quick table with the parsed data.
Via a live example, show how to extract information from SQL Server on Database, Connection and Server properties
Via a live example, show how to set up a backup for SQL Server using a Maintenance Plan and how to schedule the job into SQL Server Agent.

895 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

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now