Creating Procedures with IN and OUT Parameters

This section describes how to create a procedure with IN and OUT parameters.

To do more tests on CallableStatement objects, I created another stored procedure with IN and OUT parameters:

herong> sqlplus
Enter user-name: Herong/TopSecret

SQL> -- Creating a stored procedure
SQL> CREATE PROCEDURE CountChar(String IN CHAR,
  2    Count OUT INTEGER) AS
  3  BEGIN
  4    Count := LENGTH(String);
  5  END;
  6  /

Procedure created.

SQL> -- Turning on server output for PUT_LINE()
SQL> SET SERVEROUTPUT ON;

SQL> -- Testing the procedure with an anonymous procedure
SQL> DECLARE
  2    C INTEGER;
  3  BEGIN
  4    CountChar('Herong',C);
  5    DBMS_OUTPUT.PUT_LINE('Count: ' || C);
  6  END;
  7  /
Count: 6

PL/SQL procedure successfully completed.

Note that I had to use an anonymous procedure to test CountChar(), because the output variable needs to be declared.

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

 Oracle - Reference Implementation of JdbcRowSet

 Oracle - PreparedStatement

Oracle - JBDC CallableStatement

 Overview of CallableStatement Objects

 "CREATE PROCEDURE" - Creating a Simple Procedure

Creating Procedures with IN and OUT Parameters

 Creating CallableStatement Objects with prepareCall()

 Creating CallableStatement Objects with Parameters

 getProcedures() - Listing Stored Procedures

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Archived Tutorials

 References

 Full Version in PDF/EPUB