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Oracle Tutorials - Pass Parameters to Procedures

By: FYIcenter.com

(Continued from previous topic...)

How To Pass Parameters to Procedures?

Store procedures or functions can take parameters. You need to define parameters while defining the procedure, and providing values to parameters while calling the procedure. The script below shows you how to do this:

SQL> CREATE OR REPLACE PROCEDURE DBA_TASK (day VARCHAR2) AS 
  2  BEGIN     
  3    IF day = 'MONDAY' THEN 
  4      DBMS_OUTPUT.PUT_LINE('Checking log files.');       
  5    ELSIF day = 'FRIDAY' THEN             
  6      DBMS_OUTPUT.PUT_LINE('Rebuild indexes.');          
  7    ELSE    
  8      DBMS_OUTPUT.PUT_LINE('Reading some papers.');      
  9    END IF; 
 10  END;      
 11  /

SQL> EXECUTE DBA_TASK('MONDAY');
Checking log files.

SQL> EXECUTE DBA_TASK('SUNDAY');
Reading some papers.

As you can see, procedures with parameters can make procedures more flexible.

(Continued on next topic...)

  1. What Is a Procedure?
  2. What Is a Function?
  3. How To Define an Anonymous Procedure without Variables?
  4. How To Define an Anonymous Procedure with Variables?
  5. How To Create a Stored Procedure?
  6. How To Execute a Stored Procedure?
  7. How To Drop a Stored Procedure?
  8. How To Pass Parameters to Procedures?
  9. How To Create a Stored Function?
  10. How To Call a Stored Function?
  11. How To Drop a Stored Function?
  12. How To Call a Stored Function with Parameters?
  13. How To Define a Sub Procedure?
  14. How To Call a Sub Procedure?
  15. How To Define a Sub Function?
  16. Can Sub Procedure/Function Be Called Recursively?
  17. What Happens If Recursive Calls Get Out of Control?
  18. What Is the Order of Defining Local Variables and Sub Procedures/Functions?
  19. What Is the Difference between Formal Parameters and Actual Parameters?
  20. What Are the Parameter Modes Supported by PL/SQL?
  21. How To Use "IN" Parameter Properly?
  22. How To Use "OUT" Parameter Properly?
  23. How To Use "IN OUT" Parameter Properly?
  24. How To Define Default Values for Formal Parameters?
  25. What Are Named Parameters?
  26. What Is the Scope of a Local Variable?

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