人大金仓数据库添加外键，删除外键

// 添加外键
ALTER TABLE "sec_permissions" ADD CONSTRAINT fke086556228cd079 FOREIGN KEY(perm_parent_id) REFERENCES "sec_permissions" 
ON DELETE NO ACTION 
ON UPDATE NO ACTION 
ENABLE VALIDATE;

// 删除外键
ALTER TABLE "sec_permissions" DROP CONSTRAINT "fke086556228cd079";