How do I call a stored procedure that return a result set?
Category: java.sql, viewed: 958 time(s).
This example show you how to call a stored procedure that return a result set of the query execution result.
package org.kodejava.example.sql;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
public class CallableStatementExample {
public static void main(String[] args) {
Connection connection = null;
try {
connection = getConnection();
//
// Prepares a call to the sored procedure. This SP takes
// one IN parameter
//
String query = "call GET_PRODUCT_BY_PRICE(?)";
CallableStatement cb = connection.prepareCall(query);
//
// Sets the input parameter
//
cb.setDouble(1, 50d);
//
// Execute the query
//
ResultSet rs = cb.executeQuery();
while (rs.next()) {
System.out.println("Product: " + rs.getString(1));
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
closeConnection(connection);
} catch (SQLException e) {
e.printStackTrace();
}
}
}
/**
* Get a connection to database.
* @return a connection to database.
* @throws Exception when an exception occurs.
*/
private static Connection getConnection() throws Exception {
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost/kodejavadb";
return DriverManager.getConnection(url, "root", "");
}
/**
* Close a connection to database.
* @param connection a connection to be closed.
* @throws SQLException when an exception occurs.
*/
private static void closeConnection(Connection connection)
throws SQLException {
if (connection != null && !connection.isClosed()) {
connection.close();
}
}
}
Here is the stored procedure script we use in the example above.
CREATE PROCEDURE GET_PRODUCT_BY_PRICE (IN vprice decimal)
BEGIN
SELECT name
FROM product
WHERE price = vprice;
END;
Powered by
More examples on java.sql