Copy Table in a MySQL Database

In this section, you will learn to copy one table to another in a same MySQL database.

Copy Table in a MySQL Database

Copy Table in a MySQL Database

     

In this section, you will learn to copy one table to another in a same MySQL database.

Description of Code:

This program helps you in copying one table to another in a same MySQL database. To copy any table,  firstly, you need to establish the connection with MySQL database (jdbc4). This database has both the tables (Copyemployee and employee table). That is the one which is to be copied to the other table and the second is the table to be copied. For copying a table, we have applied the ?INSERT INTO Copyemployee SELECT * FROM employee? SQL statement. Whenever a table is copied, it displays ?Numbers of row(s) affected?. If none of the rows is copied then it shows a message ?Don?t add any row!?.

[Note: Both tables have the same field and its data type.]

Syntax for copy tables:

INSERT INTO <new_table_name> SELECT * FROM <old_table_name>

Here is code of program:

import java.sql.*;

public class CopyOneTableToAnother{
  public static void main(String[] args) {
  System.out.println("Copy data from one table 
  to another in a database!");
  Connection conn = null;
  String url = "jdbc:mysql://localhost:3306/";
  String dbName = "jdbc4";
  String driver = "com.mysql.jdbc.Driver";
  String userName = "root"; 
  String password = "root";
  try {
  //Load jdbc driver
  Class.forName(driver).newInstance();
  //Establish the connection
  conn = DriverManager.getConnection(url+dbName,userName,password);
  Statement st = conn.createStatement();
  //Copy table
  int rows = st.executeUpdate("INSERT INTO Copyemployee 
   SELECT * FROM employee");
  if (rows == 0){
  System.out.println("Don't add any row!");
  }
  else{
  System.out.println(rows + " row(s)affected.");
  conn.close();
  }
  }
  catch (Exception e) {
  e.printStackTrace();
  }
  }
}

Download this program.

Table Name: employee

empId empName empSal
1 Vinod 50000
2 Sushil 80000

Table Name: Copyemployee

empId empName empSal
8 AmarDeep 10000
7 Noor 50000

Output of this program:

C:\vinod>javac CopyOneTableToAnother.java

C:\vinod>
C:\vinod>java CopyOneTableToAnother
Copy data from one table to another in a database!
2 row(s)affected.

C:\vinod>

After copy table: Copyemployee

empId empName empSal
8 AmarDeep 10000
7 Noor 50000
1 Vinod 50000
2 Sushil 80000

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