“dapatkah saya menggunakan alias di mana klausa” Kode Jawaban

dapatkah saya menggunakan alias di mana klausa

column_alias can be used in an ORDER BY clause, but it cannot be used in a WHERE, GROUP BY, or HAVING clause. Standard SQL disallows references to column aliases in a WHERE clause. This restriction is imposed because when the WHERE clause is evaluated, the column value may not yet have been determined.