这是因为数据库 oa 和 hh 的编码格式不一样导致的

select  groupname as oper_id,name as oper_name from security_users

where name collate Chinese_PRC_CI_AS not in (select oper_name from PDA_UsersAndPWD )

无法解决 equal to 运算中 "Chinese_PRC_90_CI_AS" 和 "Chinese_PRC_BIN" 之间的排序规则冲突