SQL - basic SELECT statement

Question

I'd like to create this structure in sql (as a result of SELECT statement):

I'm trying to do it by using this query:

SELECT "Name" AS School, (SELECT 20 AS "1", 50 AS "2", 90 AS "3") AS Age;

But it doesn't work, error: Operand should contain 1 column(s) . Is it possible to create something like this using only select statements?

Answer 1

这种格式在SQL是不可能的，但这是可能的

SELECT 'Name' AS School, 20 AS `Age1`, 50 AS `Age2`, 90 AS `Age3`