将列数据从一个表复制到另一个表

Question

Please could someone help, i'm really stuck.

I have a mysql database with two tables ( with thousands of rows ), each table has a column called 'map' and i need to copy all the rows from one tables column to the 'map' column of the other table?

I know it seems simple but i'm getting in a jumble

Answer 1

Something like this would work.

UPDATE table_to
       JOIN table_from
       <put join here>
SET table_to.map = table_from.map

Answer 2

Or just simply use the next. This will insert all rows from table_from with the value from the map column to table_to's map column.

INSERT INTO table_to
(map)
SELECT map FROM table_from

Answer 3

copy data from one table to another in mysql

INSERT INTO database1 . table1 SELECT * FROM database2 . table2 ;