Statement Batch Update

In this section we are going to learn about the batch update and how to use it. Here, we are providing an example with code to execute the statement in a batch.

Statement Batch Update

Statement Batch Update

     

In this section we are going to learn about the batch update and how to use it. Here, we are providing an example with code to execute the statement in a batch. Batch updates means more than one statements are executed or updates simultaneously in the database. In this process multiple SQL queries are added in the Statement object and update the records of database simultaneously. It is the new feature of JDBC 2.0 core API. See detailed description below:

Description of program:

In this program we are going to execute the multiple queries at a time. Firstly we are going to establish the connection with MySQL database by  using the JDBC driver. When the connection has been established with the database then we will execute multiple SQL statement in a batch for updating the records. This program performs inserting and deleting the data in given tables. If both processes gets executed then it shows a message "Successfully!" and if any problem arises in the batch update then the exception will be thrown BatchUpdateException which shows  a message "SQL statement is not executed!". 

Description of code:

setAutoCommit(boolean bol):
This method is used for setting the connection to auto-commit mode. If we are using false parameter in this method then the will not be added in the database until we call commit explicitly. By default auto-commit mode value is true.

addBatch(String table):
This method adds the given SQL statement with the Statement object. It takes String type arguments like SQL queries.

executeBatch():
This method is used to execute the multiple commands in the database simultaneously. If it executes successfully then returns integer type array.

commit():
If the auto-commit mode is disable then we this method provides the facility to commit all changes in the database.

Here is the code of program:

simport java.sql.*;

public class StatementBatchUpdate{
  public static void main(String[] args) {
  System.out.println("Prepared Statement Batch Update example!");
  Connection con = null;
  try{
  Class.forName("com.mysql.jdbc.Driver");
  con = DriverManager.getConnection
("jdbc:mysql://localhost:3306/jdbctutorial","root","root");
  try{
  con.setAutoCommit(false);
  String table1 = "INSERT emp_sal VALUES('vikash1',1200)";
  String table2 = "DELETE FROM movies WHERE title = 'raja'";
  Statement st = con.createStatement();
  st.addBatch(table1);
  st.addBatch(table2);
  int count[] = st.executeBatch();
  con.commit();
  con.close();
  System.out.println("Successfully!");
  }
  catch (BatchUpdateException s){
  System.out.println("SQL statement is not executed!");
  }
  }
  catch (Exception e){
  e.printStackTrace();
  }
  }
}

Download this example.

Tutorials

  1. Mapping MySQL Data Types in Java
  2. Connecting to a MySQL Database in Java
  3. Creating a Database in MySQL
  4. Creating a Database Table
  5. Creating a MySQL Database Table to store Java Types
  6. Description of Database Table
  7. Deleting a Table from Database
  8. Retrieving Tables from a Database
  9. Inserting values in MySQL database table
  10. Retrieving All Rows from a Database Table
  11. Adding a New Column Name in Database Table
  12. Change Column Name of a Table
  13. Make Unique Column in Database Table
  14. Remove Unique Column in Database Table
  15. Arrange a Column of Database Table
  16. Arrange a Column of Database Table
  17. Sum of Column in a Database Table
  18. Deleting All Rows from a Database Table
  19. Delete a Specific Row from a Database Table
  20. Delete a Column from a Database Table
  21. Join tables in the specific database
  22. Join tables with the NATURAL LEFT JOIN operation
  23. Join tables with the NATURAL RIGHT JOIN operation
  24. Cross Join Tables in a Specific Database
  25. Prepared Statement Set Object
  26. Statement Batch Update
  27. Prepared Statement With Batch Update
  28. Select Records Using Prepared Statement
  29. Update Records using Prepared Statement
  30. Inserting Records using the Prepared Statement
  31. Count Records using the Prepared Statement
  32. Deleting Records using the Prepared Statement
  33. Using the Prepared Statement Twice
  34. Set Data Types by using Prepared Statement
  35. Set byte, short and long data types by using the Prepared Statement
  36. Prepared Statement Set Big Decimal
  37. Set Date by using the Prepared Statement
  38. Set Time by using the Prepared Statement
  39. Set Timestamp by using the Prepared Statement
  40. Copy Table in a MySQL Database