MySQL'de dual tablosunun eşdeğeri nedir?

CREATE TABLE DUAL (
  DUMMY VARCHAR(1)
)
GO
INSERT INTO DUAL (DUMMY) VALUES ('X')
GO
Kopyala

WITH DUAL(DUMMY) AS (
  SELECT 'X'
)
SELECT * FROM DUAL
Kopyala

SELECT * FROM (
  SELECT 'X'
) DUAL(DUMMY)
Kopyala