条件连接与 CASE 语句导致语法错误

Question

我基本上想在我有

CASE

语句的下面写一个条件连接，但这会导致语法错误。我基本上只想在

OWNING_ENTITY_ID

等于

ORGANIZATION_ID

时使用这个连接，否则如果它们不匹配那么我不想加入这个。

   SELECT cce.*
   FROM INV_TRANSACTIONS cce, SYSTEM_ITEMS DEF

   WHERE cce.LOCATOR_ID = DEF.LOCATOR_ID
    AND CASE WHEN cce.OWNING_ENTITY_ID = cce.ORGANIZATION_ID
             THEN cce.OWNING_ENTITY_ID = cce.ORGANIZATION_ID 
             END