Home >Database >Mysql Tutorial >How to clone/copy a table and its data, triggers and indexes?
In order to create a new table with its data, triggers and indexes just like the old table, we need to run the following two queries
CREATE TABLE new_table LIKE old_table; INSERT new_table SELECT * from old_table;
mysql> Create table employee(ID INT PRIMARY KEY NOT NULL AUTO_INCREMENT, NAME VARCHAR(20)); Query OK, 0 rows affected (0.21 sec) mysql> Describe employee; +-------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+-------------+------+-----+---------+----------------+ | ID | int(11) | NO | PRI | NULL | auto_increment | | NAME | varchar(20) | YES | | NULL | | +-------+-------------+------+-----+---------+----------------+ 2 rows in set (0.07 sec) mysql> Insert into employee(name) values('Gaurav'),('Raman'); Query OK, 2 rows affected (0.07 sec) Records: 2 Duplicates: 0 Warnings: 0 mysql> Select * from employee; +----+--------+ | ID | NAME | +----+--------+ | 1 | Gaurav | | 2 | Raman | +----+--------+ 2 rows in set (0.00 sec)
The following query will create table employee1 with a similar structure to table employee. You can check this by running a DESCRIBE query.
mysql> create table employee1 like employee; Query OK, 0 rows affected (0.19 sec) mysql> describe employee1; +-------+-------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+-------------+------+-----+---------+----------------+ | ID | int(11) | NO | PRI | NULL | auto_increment | | NAME | varchar(20) | YES | | NULL | | +-------+-------------+------+-----+---------+----------------+ 2 rows in set (0.14 sec)
Now the following query will insert the same value in employee1 as in employee, which can be checked as follows
mysql> INSERT INTO employee1 select * from employee; Query OK, 2 rows affected (0.09 sec) Records: 2 Duplicates: 0 Warnings: 0 mysql> select * from employee1; +----+--------+ | ID | NAME | +----+--------+ | 1 | Gaurav | | 2 | Raman | +----+--------+ 2 rows in set (0.00 sec)
In this way, we can also clone the table and its data, trigger controller and index.
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