JAVA EXAMPLE PROGRAMS

JAVA EXAMPLE PROGRAMS

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Write a simple program for CallableStatement statement to execute stored procedure.


Description:

A CallableStatement object provides a way to call stored procedures using JDBC. Connection.prepareCall() method provides you CallableStatement object. Below example shows how to call stored procedure.


Code:
package com.java2novice.jdbc;

import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class MySimpleCallableStatement {
	
	public static void main(String a[]){
		
		Connection con = null;
		CallableStatement callSt = null;
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
			con = DriverManager.
				getConnection("jdbc:oracle:thin:@<hostname>:<port num>:<DB name>"
					,"user","password");
			callSt = con.prepareCall("{call myprocedure(?,?)}");
			callSt.setInt(1,200);
			callSt.setDouble(2, 3000);
			callSt.execute();
			System.out.println("Executed stored procedure!!!");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} finally{
			try{
				if(callSt != null) callSt.close();
				if(con != null) con.close();
			} catch(Exception ex){}
		}
	}
}
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  2. What is Statement & ResultSet in JDBC?
  3. How to execute and read select queries using JDBC?
  4. How to update a record in the database using JDBC?
  5. How to execute any type of query in JDBC?
  6. What are the types of JDBC Statements available?
  7. Write an example code for JDBC prepared statement.
  8. Write an example for JDBC prepared statement with ResultSet.
  9. How to get primary key value (auto-generated keys) from inserted queries using JDBC?
  10. Write a simple program for CallableStatement statement to execute stored procedure.
  11. Write a program for CallableStatement statement with stored procedure returns OUT parameters.
  12. Write a program for CallableStatement statement with batch execution.
  13. Write a program to execute SQL function using CallableStatement.
  14. Write a program to execute SQL cursors using CallableStatement.
  15. How to get column properties from ResultSet using ResultSetMetaData?
  16. Write an example for batch update using Statement.
  17. Write an example for batch update using PreparedStatement.
  18. What are the types of ResultSets in JDBC?
  19. Write an example for scrollable result set with read only mode.
  20. Write an example for updatable result set.
  21. How to insert an image into database table? or Write an example for inserting BLOB into table.
  22. How to read an image from database table? or Write an example for reading BLOB from table.
  23. What is DatabaseMetaData? Write an example code.
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Knowledge Centre
Default value of a local variables?
The local variables are not initialized to any default values. We should not use local variables with out initialization. Even the java compiler throws error.
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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java is registered trademark of Oracle.
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