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How to execute SQL query on multiple databases?
You can use WHILE loop over all database names and inside loop execute query with EXECUTE. I think that statement SET @dbname = could be better, but this works too.
How to select data from two different servers in SQL Server?
You can do it using Linked Server. Typically linked servers are configured to enable the Database Engine to execute a Transact-SQL statement that includes tables in another instance of SQL Server, or another database product such as Oracle.
How to query more than one server in SSMS?
Basically you can use 1 window to simultaneously run a query against multiple servers, here’s how: In SSMS open Registered Servers and create a New Server Group under Local Server Groups. Under this group create New Server Registration for each server you wish to query.
Can you write a query that accesses another database?
You can still write a query that accesses another database. Kalman’s response is perfectly correct. HuaMin Chen’s response, on the other hand, is in accurate. As long as the databases are in the same instance, you don’t need a linked server. that’s why in query it is showing error.
What happens if I query more than one database?
However, if an asset can appear in more than one database then the UNION ALL would return duplicates. This could result in a cartesaen join should you then join the view to another table on the serialNumber. If you are only looking for a single asset at a time then you can you SELECT TOP 1 FROM the view.
Can you execute more than one statement in SQL?
Of course using a Stored Procedure is a preferred way but there are situations when it’s beneficial to execute more than one statement with a single call. This can be done using a batch, which basically means a set of SQL or T-SQL statements together.
How to query across multiple databases in Navicat?
That will allow us to combine the two groups of names into one result set. Here is their layout in the Navicat object pane: Just as you can refer to a table within the default database as tbl_name in your SELECT statements, you can also prefix the table name with the database name, e.g. db_name.tbl_name, to specify a database explicitly.