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MySQL query to copy records from one table to another with different columns
For this you can use INSERT INTO SELECT statement. Let us first create a table −
mysql> create table DemoTable1900 ( ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, ClientName varchar(20), ClientAge int default 29 ) auto_increment=1000; Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1900(ClientName,ClientAge) values('Chris',45);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1900(ClientName,ClientAge) values('David',29);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1900(ClientName,ClientAge) values('Mike',37);
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1900(ClientName) values('Sam');
Query OK, 1 row affected (0.00 sec)
Display all records from the table using select statement −
mysql> select * from DemoTable1900;
This will produce the following output −
+----------+------------+-----------+ | ClientId | ClientName | ClientAge | +----------+------------+-----------+ | 1000 | Chris | 45 | | 1001 | David | 29 | | 1002 | Mike | 37 | | 1003 | Sam | 29 | +----------+------------+-----------+ 4 rows in set (0.00 sec)
Here is the query to create second table −
mysql> create table DemoTable1901 ( EmployeeId int, EmployeeName varchar(20), EmployeeAge int ); Query OK, 0 rows affected (0.00 sec)
Here is the query to copy records from one table to another with different columns −
mysql> insert into DemoTable1901(EmployeeId,EmployeeName,EmployeeAge) select ClientId,ClientName, ClientAge from DemoTable1900; Query OK, 4 rows affected (0.00 sec) Records: 4 Duplicates: 0 Warnings: 0
Display all records from the table using select statement −
mysql> select * from DemoTable1901;
This will produce the following output −
+------------+--------------+-------------+ | EmployeeId | EmployeeName | EmployeeAge | +------------+--------------+-------------+ | 1000 | Chris | 45 | | 1001 | David | 29 | | 1002 | Mike | 37 | | 1003 | Sam | 29 | +------------+--------------+-------------+ 4 rows in set (0.00 sec)
Updated on: 2019-12-27T07:09:41+05:30
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