ALTER TABLE SWITCH 语句失败。在源表 '%2' 中外键约束 '%1' 是 NOCHECK，而在目标表 '%4' 中，对应约束 '%3' 是 CHECK。源表约束必须是 CHECK。

ALTER TABLE SWITCH statement failed. Foreign key constraint '%1' is NOCHECK in source table '%2' and the corresponding constraint '%3' is CHECK in target table '%4'. The source table constraint must be in CHECK.