Column Alias in a WHERE Clause

Question

Problem

I am using alternate column name (alias) in a Query, I can use the alias "given_name" as part of the ORDER BY but am unable to use it as part of t

Answer 1

You can only use column aliases in GROUP BY, ORDER BY, or HAVING clauses.

Standard SQL doesn't allow you to refer to a column alias in a WHERE clause. This restriction is imposed because when the WHERE code is executed, the column value may not yet be determined.