How do I run the same query on multiple databases in SQL Server?

How do I run the same query on multiple databases in SQL Server?

Open a new Query Window and write a query which has to be executed against multiple database of a server. Right click in the window and Select an option “Run On Multiple Targets” as shown below. This will open a new window which will have all the database available on the current server listed as shown below.

What is SQL Multi Script?

SQL Multi Script is designed to speed up database administration for DBAs and database developers, SQL Multi Script enables fast and easy execution of multiple scripts against multiple SQL Servers.

How do you run a SQL script against multiple SQL databases at the same time?

Execute SQL Scripts on Multiple SQL Servers and Save Output as CSV Files

  1. Running a Script Against Several Servers Using SQLCMD Mode in SSMS.
  2. Running a Script Using SQLCMD from Command Prompt.
  3. Running a Script Against Several Servers Using SQLCMD from Command Prompt and Saving Output.

How to query across multiple databases in one server?

We have a database server with multiple databases on it (all have the same schema, different data). We are looking for a way to query across all the databases (and for it to be easy to configure, as more databases may be added at any time).

Why does one SQL query take longer than the other?

I have a SQL database server and 2 databases under it with the same structure and data. I run the same sql query in the 2 databases, one of them takes longer while the other completes in less than 50% of the time. They both have different execution plans.

What to do when SQL query is running slow?

Focus on see why the query is running slow or see the actual execution plan, instead of comparing. Checking the actual execution plan for the slow query will give you a hint of why is running slower. Also, I would not add a NO LOCK statement to fix the issue.

Why do we need to query across all databases?

We are looking for a way to query across all the databases (and for it to be easy to configure, as more databases may be added at any time). This data access must be realtime. Say, as an example, you have an application that inserts orders – each application has its own DB etc.