Is this Oracle Online Compiler free to use?

Yes, Oracle Online Compiler is 100% free to use online with no installation or account required.

How do I run code using Oracle Online Compiler?

Simply type or paste your source code into the editor and click the Run button to view the output in the console.

Can I use Oracle Online Compiler on mobile devices?

Yes, the compiler is fully responsive and compatible with Android, iOS, Windows, macOS, and Linux web browsers.

Oracle Online Compiler / SQL Runner

Write, test, and execute Oracle SQL queries and PL/SQL blocks online directly from your browser with our free Online Oracle Compiler / SQL Runner. Practice database queries, procedural logic, variables, conditions, loops, and PL/SQL blocks without installing Oracle Database or Oracle SQL Developer locally.

How to Use This Oracle Compiler

Write or paste your Oracle SQL / PL/SQL code
Enter your query or PL/SQL block in the Code Editor. You can test SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, variables, conditions, loops, and other supported Oracle features.
Click the Run button
Select Run to execute your SQL statement or PL/SQL block. If your code contains a syntax, SQL, or PL/SQL error, review the returned message, correct the relevant statement, and run it again.
Check the Output screen
Query results, PL/SQL output, or execution messages appear in the Output panel. Use the available controls to copy, download, or delete the output before testing another Oracle program.

Key Features

Free Online Oracle Compiler: Practice Oracle SQL and PL/SQL directly from a modern browser.
Zero Installation: No need to install Oracle Database or Oracle SQL Developer for supported exercises.
SQL & PL/SQL Support: Test standard SQL statements alongside procedural PL/SQL blocks.
Instant Execution: Click Run and quickly review query results or error feedback.
PL/SQL Programming: Practice variables, IF statements, loops, procedures, and exception-handling concepts.
Database Query Practice: Work with SELECT, filtering, sorting, grouping, joins, and supported DML statements.
Dark and Light Mode: Switch the Code Editor theme for comfortable database practice.
Output Controls: Copy, download, or clear generated results directly from the Output panel.

1. How do I print output in PL/SQL using DBMS_OUTPUT.PUT_LINE?

Use DBMS_OUTPUT.PUT_LINE inside a PL/SQL block.

You can also print variables:

Whether output appears automatically can depend on how the online Oracle environment handles DBMS_OUTPUT.

2. Do I need to install Oracle SQL Developer to use this tool?

No. You can use this Online Oracle Compiler / SQL Runner directly from your browser without installing Oracle SQL Developer for supported SQL and PL/SQL exercises.

A full local or hosted Oracle environment may still be required for production databases, persistent schemas, user administration, advanced packages, external connections, and enterprise database management.

3. Can I run PL/SQL BEGIN ... END blocks in this compiler?

Yes, supported PL/SQL blocks can be written using BEGIN and END.

You can also declare variables:

PL/SQL also supports procedural features such as conditions and loops:

4. What is the difference between SQL and PL/SQL in Oracle?

SQL is primarily used to define, retrieve, and modify data in relational database tables. PL/SQL extends SQL with procedural programming features such as variables, conditions, loops, procedures, functions, and exception handling.

A standard SQL query looks like this:

A PL/SQL block can contain programming logic:

Use SQL when you mainly need to work with database data, and PL/SQL when your Oracle task requires procedural logic around SQL operations.