How to use Transact-SQL (T-SQL) In SQL
To open a database using T-SQL, we need to use the USE statement. The syntax is given below:
USE [DatabaseName];
Explanation: In the above syntax, the command is USE where [DatabaseName] is the name of your database which is to be opened. This command changes the context to comes a particular database so that you get to perform operations within that database.
- USE: This keyword instructs SQL Server to change the current database context.
- [DatabaseName]: The name of the database you wish to open. It would be better for you if you put this one in brackets []. It might have special characters or some spaces in this case.
Example: Opening the GFG database
Assume you have a database named GFG. To open this database, you would use the following command:
USE GFG;
Output:
Execute the above command to use or open the “GFG” Database.
Output: After executing this command, any subsequent SQL commands will be executed within the GFG database and your message tab which is below will display the following message:
If we look at the application’s header, we will see our database name displayed in the format: “ServerName.CurrentDatabase“.
For example:
Here, we can see as we have successfully switched to “GFG” Database.
How to Open a Database in SQL Server?
Opening a database in SQL Server is a fundamental task for database administrators and developers. It involves establishing a connection to the server instance and selecting a database to work with.
In this article, we will explore two methods to open a database in SQL Server such as using SQL Server Management Studio (SSMS) and using Transact-SQL (T-SQL) commands. These methods provide flexibility and whether through a graphical interface or a script-based approach.