sql其中ActionID在Case x = 0，然后id在（1,2,3,4）当x = 1然后id in（1,2）当x = 2 id in（3,4）

Question

如何在sql where子句中表示以下条件？

where id in 
  Case x=0 then (1,2,3,4) 
  case x=1 then (1,2) 
  case x=2 then (3,4)

Answer 1

...
 WHERE (x=0 AND id IN (1,2,3,4))
    OR (x=1 AND id IN (1,2))
    OR (x=2 AND id IN (3,4))