MySQL INSERT SELECT

MySQL INSERT INTO SELECT can be used to copy data from one table to another table

Data types of the columns which are being copied should be matched.

INSERT INTO SELECT Syntax

To copy the entire table

INSERT INTO table2
SELECT * FROM table1
WHERE condition; 

To copy selected columns

INSERT INTO table2 (column1, column2, column3, ...)
SELECT column1, column2, column3, ...
FROM table1
WHERE condition; 

Example

Copy records from transact table to orders table

INSERT INTO orders (order_date, order_number, order_amount)
SELECT order_date, order_number, order_amount
FROM transact
WHERE order;