How to create a table in JDBC using another table?

You can create a table same as an existing table using the following syntax:

CREATE TABLE new_table as SELECT * from old_table;

Assume we have a table named dispatches with 5 records as shown below:

+-------------+--------------+--------------+--------------+-------+----------------+ | ProductName | CustomerName | DispatchDate | DeliveryTime | Price | Location       | +-------------+--------------+--------------+--------------+-------+----------------+ | Key-Board   | Raja         | 2019-09-01   | 05:30:00     | 7000  | Hyderabad     | | Earphones   | Roja         | 2019-05-01   | 05:30:00     | 2000  | Vishakhapatnam | | Mouse       | Puja         | 2019-03-01   | 05:29:59     | 3000  | Vijayawada | | Mobile      | Vanaja       | 2019-03-01   | 04:40:52     | 9000  | Chennai | | Headset     | Jalaja       | 2019-04-06   | 18:38:59     | 6000  | Goa | +-------------+--------------+--------------+--------------+-------+----------------+

Following JDBC program establishes connection with a database and create a new table using the definition of an existing table.

import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; import java.sql.Statement; public class CreateTable {    public static void main(String args[]) throws Exception{       //Registering the Driver       DriverManager.registerDriver(new com.mysql.jdbc.Driver());       //Getting the connection       String mysqlUrl = "jdbc:mysql://localhost/mydatabase";       Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");       System.out.println("Connection established......");       //Creating the Statement object       Statement stmt = con.createStatement();       //Query to create a table       String query = "CREATE TABLE Sales as SELECT * from dispatches";     //Executing the query stmt.execute(query); System.out.println("Table created......"); } }

Output

Connection established...... Table created......

If you verify the contents of the Sales table you can observe that is created same as dispatches table.

mysql> select * from Sales; +-------------+--------------+--------------+--------------+-------+----------------+ | ProductName | CustomerName | DispatchDate | DeliveryTime | Price | Location       | +-------------+--------------+--------------+--------------+-------+----------------+ | Key-Board   | Raja         | 2019-09-01   | 05:30:00     | 7000  | Hyderabad     | | Earphones   | Roja         | 2019-05-01   | 05:30:00     | 2000  | Vishakhapatnam | | Mouse       | Puja         | 2019-03-01   | 05:29:59     | 3000  | Vijayawada | | Mobile      | Vanaja       | 2019-03-01   | 04:40:52     | 9000  | Chennai | | Headset     | Jalaja       | 2019-04-06   | 18:38:59     | 6000  | Goa | +-------------+--------------+--------------+--------------+-------+----------------+ 5 rows in set (0.00 sec)