Best way to create a temp table with same columns and type as a permanent table

Question

I need to create a temp table with same columns and type as a permanent table. What is the best way to do it? (The Permanent table has over 100 columns)

i.e.

Usu

Answer 1

This is a MySQL-specific answer, not sure where else it works --

You can create an empty table having the same column definitions with:

CREATE TEMPORARY TABLE temp_foo LIKE foo;

And you can create a populated copy of an existing table with:

CREATE TEMPORARY TABLE temp_foo SELECT * FROM foo;

And the following works in postgres; unfortunately the different RDBMS's don't seem very consistent here:

CREATE TEMPORARY TABLE temp_foo AS SELECT * FROM foo;