Insert values in a table by MySQL SELECT from another table in MySQL?

Fir this, use INSERT INTO SELECT statement. Let us first create a table −

mysql> create table DemoTable1    -> (    -> Id int,    -> Name varchar(20),    -> Age int    -> ); Query OK, 0 rows affected (1.72 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable1 values(100,'Chris',24); Query OK, 1 row affected (0.61 sec) mysql> insert into DemoTable1 values(101,'Adam',23); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1 values(102,'John',25); Query OK, 1 row affected (0.13 sec) mysql> insert into DemoTable1 values(103,'Carol',26); Query OK, 1 row affected (0.26 sec)

Display all records from the table using select statement −

mysql> select * from DemoTable1;

This will produce the following output −

+------+-------+------+ | Id   | Name | Age | +------+-------+------+ | 100 | Chris | 24 | | 101 | Adam | 23 | | 102 | John | 25 | | 103 | Carol | 26 | +------+-------+------+ 4 rows in set (0.00 sec)

Here is the query to create second table −

mysql> create table DemoTable2    -> (    -> EmployeeId int,    -> EmployeeFirstName varchar(20),    -> EmployeeAge int    -> ); Query OK, 0 rows affected (1.63 sec)

Here is the query to insert values in DemoTable2 from MySQL select from DemoTable1 −

mysql> insert into DemoTable2(EmployeeId,EmployeeFirstName,EmployeeAge) select Id,Name,Age from DemoTable1 where Id=101; Query OK, 1 row affected (0.17 sec) Records: 1 Duplicates: 0 Warnings: 0

Let us check the table records −

mysql> select * from DemoTable2;

Here is the query to create second table −

+------------+-------------------+-------------+ | EmployeeId | EmployeeFirstName | EmployeeAge | +------------+-------------------+-------------+ |       101 | Adam | 23 | +------------+-------------------+-------------+ 1 row in set (0.00 sec)