DELETE OPENQUERY (VERYEAST_MAIN_MYSQL_CONN, 'SELECT college_userid FROM college_student_information ') WHERE college_userid IN(SELECT college_userid FROM #college_student_info)
链接服务器"VERYEAST_MAIN_MYSQL_CONN"的 OLE DB 访问接口 "MSDASQL" 返回了消息 "键列信息不足或不正确。更新影响到多行。"。
消息 7345,级别 16,状态 1,第 207 行
链接服务器 "VERYEAST_MAIN_MYSQL_CONN" 的 OLE DB 访问接口 "MSDASQL" 无法从表 "SELECT college_userid FROM college_student_information " 删除数据。更新操作不满足架构要求。
原因很简单 表college_student_information 有多条college_userid相同的情况
代码改为
DELETE OPENQUERY (VERYEAST_MAIN_MYSQL_CONN, 'SELECT * FROM college_student_information ') WHERE college_userid IN(SELECT college_userid FROM #college_student_info)
这样就不会出错了。