Executing and Debugging Stored Procedures in Oracle SQL Developer

Executing Stored Procedures in Oracle SQL Developer

Oracle SQL Developer provides a convenient way to create, edit, and execute stored procedures in Oracle database. Using SQL Developer, developers can execute procedures with or without parameters and view results returned easily.

Creating a Stored Procedure

To create a new stored procedure in SQL Developer, right click on the Procedures node under the database connection and select New Procedure. This will open the procedure editor where you can write PL/SQL code for the procedure logic. Parameters can also be defined in the template if the procedure needs to accept parameters.

Executing a Stored Procedure without Parameters

For procedures without input parameters, they can be executed by right clicking on the procedure name under the Procedures node and selecting Run. The procedure will be called and any output will be displayed in a query result window.

Setting Parameter Values to Execute a Procedure

If a procedure has input parameters defined, values need to be set before executing it. After right clicking the procedure and selecting Run, a dialog will pop up allowing you to enter values for the parameters. Different data types like Numbers, Date, String etc. can be set here.

Viewing Output Parameters Returned from Procedure

Besides returning a result set, procedures can also define output parameters to return values back. After execution, under the Parameters node, the output parameters will be populated with returned values that can be checked.

Debugging Stored Procedures

SQL Developer provides a debugger to step through procedure code, analyze variable values and identify issues. To debug, right click on the procedure and select Debug. PL/SQL code can then be executed line by line while monitoring variables and parameters.

Using Breakpoints

Breakpoints can be toggled to pause execution at specific lines. By stepping through code line by line from a breakpoint, you can understand the flow better and trace bugs.

Checking Variable Values

The debugger windows also shows all parameter and variable values at every step. This makes it easy to inspect if variables have expected values to find potential bugs.

Fixing Issues in Code

If a bug is found through debugging, the code can be fixed right in the SQL Developer editor. The procedure can then be debugged again to validate the fix.

Troubleshooting Invalid Object Errors

While executing a procedure, if PL/SQL compiler errors happen, the common causes are syntax errors or invalid object references. Some tips to troubleshoot these errors:

• Check for typos, missing semicolons etc. causing syntax errors
• Validate table, column names referenced exist
• Validate parameter data types match definition
• Check packages referenced are valid

Conclusion

SQL Developer makes stored procedure development productive through its editor, easy execution and debugging. With useful features like breakpoint and variable inspection, procedures can be analyzed and fixed effectively. Understanding common errors helps fix issues faster.

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