Question

Hi and thank you for reading.

I have two tables with the same columns. I would like to first table’s data to second table. Insert query is very simple: INSERT INTO Table1 SELECT * FROM Table2. But my problem is when I upgrade OpenERP, table column positions are changed. So INSERT INTO Table1 SELECT * FROM Table2 query doesn’t work. Can you help me to solve this???? Any answers will be highly appreciated…thank you!!!

Table1:           Table2:
NAME   COUNT      NAME   COUNT
name1  1          name3  3
name2  2          name4  4
name3  3          name5  5
name4  4          name6  6 

SOLUTION: Use information_schema.columns table.

SELECT column_name
FROM information_schema.columns
WHERE table_schema='public' AND table_name='tablename'

Answer 1

Try this query:

INSERT INTO Table1 (name1, name2, name3, name4) 
    SELECT name3, name4, name5, name6
    FROM Table2;