That format requires you to use either:
(该格式要求您使用以下任一种:)
CASE ebv.db_no
WHEN 22978 THEN 'WECS 9500'
WHEN 23218 THEN 'WECS 9500'
WHEN 23219 THEN 'WECS 9500'
ELSE 'WECS 9520'
END as wecs_system
Otherwise, use:
(否则,使用:)
CASE
WHEN ebv.db_no IN (22978, 23218, 23219) THEN 'WECS 9500'
ELSE 'WECS 9520'
END as wecs_system
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…