Creating CallableStatement Objects with Parameters

This section describes how to create CallableStatement objects with IN and OUT parameters.

For an IN parameter defined in a stored procedure, you can put a static value or a place holder in the CALL statement when creating the CallableStatement object. A value for that place holder must be provided by the setXXX() method.

For an OUT parameter defined in a stored procedure, you must put a place holder in the CALL statement when creating the CallableStatement object. That place holder must be registered with the registerOutParameter() method.

In a previous tutorial, I defined a store procedure called, ReverseProcedure(), with 1 IN parameter and 2 OUT parameters. The program below shows you to create a CallableStatement object to execute this stored procedure:

/* MySqlCallParameter.java
 - Copyright (c) 2015, HerongYang.com, All Rights Reserved.
 */
import java.sql.*;
public class MySqlCallParameter {
  public static void main(String [] args) {
    Connection con = null;
    try {
      com.mysql.jdbc.jdbc2.optional.MysqlDataSource ds 
        = new com.mysql.jdbc.jdbc2.optional.MysqlDataSource();
      ds.setServerName("localhost");
      ds.setPortNumber(3306);
      ds.setDatabaseName("HerongDB");
      ds.setUser("Herong");
      ds.setPassword("TopSecret");
      con = ds.getConnection();

// Create CallableStatement
      CallableStatement cs = con.prepareCall(
        "CALL ReverseProcedure(?,?,?)");

// Provide values for IN parameters
      String word = "Herong";
      cs.setString(1,word);

// Register OUT parameters
      cs.registerOutParameter(2, java.sql.Types.VARCHAR);
      cs.registerOutParameter(3, java.sql.Types.INTEGER);

// Execute the CALL statement and ignore result sets
      cs.executeUpdate();

// Retrieve values from OUT parameters
      String reversed = cs.getString(2);
      int length = cs.getInt(3);
      System.out.println("Input word: "+word);
      System.out.println("Output word: "+reversed);
      System.out.println("Word length: "+length);

// Close resource
      cs.close();

      con.close();
    } catch (Exception e) {
      System.err.println("Exception: "+e.getMessage());
      e.printStackTrace();
    }
  }
}

The output of the program confirms that I handled IN and OUT parameters correctly:

C:\herong>\Progra~1\java\jdk1.8.0_45\bin\javac 
   -cp .;\local\lib\mysql-connector-java-5.1.36-bin.jar 
   MySqlCallParameter.java

C:\herong>\Progra~1\java\jdk1.8.0_45\bin\java 
   -cp .;\local\lib\mysql-connector-java-5.1.36-bin.jar 
   MySqlCallParameter

Input word: Herong
Output word: gnoreH
Word length: 6

Last update: 2015.

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Installing and Running Java DB - Derby

 Derby (Java DB) JDBC Driver

 Derby (Java DB) JDBC DataSource Objects

 Java DB (Derby) - DML Statements

 Java DB (Derby) - ResultSet Objects of Queries

 Java DB (Derby) - PreparedStatement

 MySQL Installation on Windows

 MySQL JDBC Driver (MySQL Connector/J)

 MySQL - PreparedStatement

 MySQL - Reference Implementation of JdbcRowSet

MySQL - JBDC CallableStatement

 Overview of CallableStatement Objects

 "CREATE PROCEDURE" - Creating a Simple Procedure

 Creating Procedures with IN and OUT Parameters

 Creating Procedures with INOUT Parameters

 Creating Procedures with Multiple Queries

 Creating CallableStatement Objects with prepareCall()

 Capturing ResultSet with executeQuery()

Creating CallableStatement Objects with Parameters

 Common Errors with CallableStatement Parameters

 Creating CallableStatement Objects with INOUT Parameters

 Retrieving Multiple ResultSet Objects

 Executing Stored Procedures without Permission

 getProcedures() - Listing Stored Procedures

 MySQL CLOB (Character Large Object) - TEXT

 MySQL BLOB (Binary Large Object) - BLOB

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

 Oracle - Reference Implementation of JdbcRowSet

 Oracle - PreparedStatement

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Microsoft SQL Server 2005 Express Edition

 Microsoft JDBC Driver for SQL Server - sqljdbc42.jar

 Microsoft JDBC Driver - Query Statements and Result Sets

 Microsoft JDBC Driver - DatabaseMetaData Object

 Microsoft JDBC Driver - DDL Statements

 Microsoft JDBC Driver - DML Statements

 SQL Server - PreparedStatement

 SQL Server CLOB (Character Large Object) - TEXT

 SQL Server BLOB (Binary Large Object) - BLOB

 JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver

 JDBC-ODBC Bridge Driver - Flat Text Files

 JDBC-ODBC Bridge Driver - MS Access

 JDBC-ODBC Bridge Driver - MS SQL Server

 Summary of JDBC Drivers and Database Servers

 Additional Tutorial Notes to Be Added

 Outdated Tutorials

 References

 PDF Printing Version