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Copy values of one column to another using INSERT and SELECT in a single MySQL query
Let us first create a table −
mysql> create table DemoTable1
(
Name varchar(100),
Gender ENUM('MALE','FEMALE')
);
Query OK, 0 rows affected (0.50 sec)Insert some records in the table using insert command −
mysql> insert into DemoTable1 values('Chris','Male');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable1 values('Emma','Female');
Query OK, 1 row affected (0.19 sec)Display all records from the table using select statement −
mysql> select *from DemoTable1;
This will produce the following output −
+-------+--------+ | Name | Gender | +-------+--------+ | Chris | MALE | | Emma | FEMALE | +-------+--------+ 2 rows in set (0.00 sec)
Following is the query to create the second table −
mysql> create table DemoTable2 ( EmployeeGender varchar(100) ); Query OK, 0 rows affected (0.47 sec)
Let us now copy values of one column to another with a single MySQL query −
mysql> insert into DemoTable2(EmployeeGender) select Gender from DemoTable1; Query OK, 2 rows affected (0.15 sec) Records: 2 Duplicates: 0 Warnings: 0
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----------------+ | EmployeeGender | +----------------+ | MALE | | FEMALE | +----------------+ 2 rows in set (0.00 sec)
Updated on: 25-Sep-2019
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