SQL Server Online Compiler / SQL Runner

Write, test, and execute Microsoft SQL Server queries and T-SQL scripts online directly from your browser with our free Online SQL Server Compiler / SQL Runner. Practice database queries, table operations, joins, variables, conditions, and other T-SQL logic without installing a local SQL Server instance or heavy tools such as SQL Server Management Studio (SSMS).

How to Use This SQL Server Compiler

  1. Write or paste your SQL Server code
    Enter your SQL or T-SQL statements in the Code Editor. You can practice commands such as CREATE TABLE, INSERT, SELECT, UPDATE, DELETE, JOIN, DECLARE, and other supported SQL Server operations.
  2. Click the Run button
    Select Run to execute your query or T-SQL script. If your code contains a syntax or execution error, review the returned message, correct the relevant statement, and run it again.
  3. Check the Output screen
    Query results, execution messages, or errors appear in the Output panel. Use the available controls to copy, download, or delete the output before testing another SQL Server query.

Key Features

  • Free Online SQL Server Compiler: Write and execute SQL Server queries directly from a modern web browser.
  • T-SQL Support: Practice Microsoft SQL Server syntax including variables, conditions, queries, and supported procedural statements.
  • Zero Installation: No need to install SQL Server or SSMS for supported SQL practice.
  • Instant Execution: Click Run and quickly review query results or execution feedback.
  • Table Operations: Practice CREATE TABLE, INSERT, UPDATE, and DELETE statements.
  • JOIN Practice: Test INNER JOIN, LEFT JOIN, and other supported relational queries.
  • T-SQL Variables: Experiment with DECLARE, SET, and variable-based query logic.
  • Dark and Light Mode: Switch the Code Editor theme for comfortable database development.
  • Output Controls: Copy, download, or clear generated results directly from the Output panel.
1. How do I run a basic SELECT query in this online SQL Server compiler?

Use the SELECT statement to retrieve records from a table.

To retrieve only selected columns:

You can also filter and sort the result:

Enter the query in the Code Editor, click Run, and review the returned rows in the Output screen.

No. You can use this Online SQL Server Compiler / SQL Runner directly from your browser for supported SQL and T-SQL exercises without installing SSMS or configuring a local SQL Server instance.

A complete SQL Server environment may still be required for production databases, persistent data, authentication, backups, stored procedures, external application connections, security management, and advanced administration.

Yes. You can practice supported table creation and T-SQL variable syntax.

Create a simple table:

Insert sample records:

You can also use T-SQL variables:

T-SQL variables are useful when testing reusable values and procedural database logic.

Yes. This online editor is useful for practicing SQL Server and T-SQL fundamentals, including filtering, sorting, joins, aggregation, variables, and table operations.

For example, you can test a join:

You can also practice aggregation:

This makes the tool useful for backend developers, DBAs, interview preparation, database students, and anyone learning Microsoft SQL Server syntax.