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Insert from one table with different structure to another in MySQL?
For this, use INSERT INTO SELECT statement. Let us first create a table −
mysql> create table DemoTable1 -> ( -> PersonId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> PersonName varchar(20), -> PersonAge int, -> PersonCountryName varchar(20) -> ); Query OK, 0 rows affected (0.55 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1(PersonName,PersonAge,PersonCountryName) values('Chris Brown',24,'US');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable1(PersonName,PersonAge,PersonCountryName) values('John Doe',26,'UK');
Query OK, 1 row affected (0.23 sec)
mysql> insert into DemoTable1(PersonName,PersonAge,PersonCountryName) values('David Miller',23,'AUS');
Query OK, 1 row affected (0.10 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1;
This will produce the following output −
+----------+--------------+-----------+-------------------+ | PersonId | PersonName | PersonAge | PersonCountryName | +----------+--------------+-----------+-------------------+ | 1 | Chris Brown | 24 | US | | 2 | John Doe | 26 | UK | | 3 | David Miller | 23 | AUS | +----------+--------------+-----------+-------------------+ 3 rows in set (0.00 sec)
Here is the query to create second table −
mysql> create table DemoTable2 -> ( -> EmployeeId int, -> EmployeeFullName varchar(30), -> EmployeeAge int, -> EmployeeCountryName varchar(20), -> EmployeeSalary int default 20000 -> ); Query OK, 0 rows affected (0.52 sec)
Here is the query to insert from one table with different structure to another −
mysql> insert into DemoTable2(EmployeeId,EmployeeFullName,EmployeeAge,EmployeeCountryName) select PersonId,PersonName,PersonAge,PersonCountryName from DemoTable1; Query OK, 3 rows affected (0.26 sec) Records: 3 Duplicates: 0 Warnings: 0
Display all records from the table using select statement −
mysql> select * from DemoTable1;
This will produce the following output −
+------------+------------------+-------------+---------------------+----------------+ | EmployeeId | EmployeeFullName | EmployeeAge | EmployeeCountryName | EmployeeSalary | +------------+------------------+-------------+---------------------+----------------+ | 1 | Chris Brown | 24 | US | 20000 | | 2 | John Doe | 26 | UK | 20000 | | 3 | David Miller | 23 | AUS | 20000 | +------------+------------------+-------------+---------------------+----------------+ 3 rows in set (0.00 sec)
Updated on: 12-Dec-2019
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