Question

I have two tables with the same columns, and I need to copy one table’s rows to the other table’s rows to create one big table with all the values from both tables. Right now I am doing this query to return the same thing:

SELECT col1, col2, col3 from Table1 union SELECT col1, col2, col3 from Table2 

However, it seems horribly inefficient, and on my system is very slow (returns 1210189 records).

Answer 1

May it work to just do:

SELECT col1, col2, col3  INTO Table1 FROM Table2