Deleting All Rows from a Database Table

This section describes for deleting all rows from a specific database table.

Deleting All Rows from a Database Table

Deleting All Rows from a Database Table

     

Consider a case where we have been given one database table, now we have to delete all the rows from the table. This section describes for deleting all rows from a specific database table. Deleting all rows with the help of some java methods and APIs interfaces that is given below:

Description of program:

This program establishes the connection between the MySQL database and java file with the help of a jdbc driver. After that deletes all rows by the SQL statement and shows a message "All rows are completely deleted!". If SQL statement is not executed then displays "SQL statement is not executed!".

Here is the code of program:

import java.sql.*;

public class DeleteAllRows{
  public static void main(String[] args) {
  System.out.println
("Example for Deleting All Rows from a database Table!");
  Connection con = null;
  try{
  Class.forName("com.mysql.jdbc.Driver");
  con = DriverManager.getConnection
("jdbc:mysql://localhost:3306/jdbctutorial", "root", "root");
  try{
  Statement st = con.createStatement();
  String sql = "DELETE FROM employee6";
  int delete = st.executeUpdate(sql);
  if(delete == 0){
  System.out.println("All rows are completelly deleted!");
  }
  }
  catch(SQLException 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