Why use "where 1=2" on a SQL CREATE TABLE syntax?

Question

CREATE TABLE EMPL_DEMO AS SELECT * FROM employees WHERE 1=2; 

I read this statement somewhere on the internet but I couldn't understand the WHERE 1=2.

Will anyone please, explain this?

Answer 1

This type of command is usually used to copy the structure of one table to another. In this case, EMPL_DEMO will have the same column structure of employees, except for the keys or constraints.

The 1=2 always evaluates to False which prevents you from copying any of the rows.