mysql多层开发更新数据问题_MySQL

问题:
开发环境:delphi7se + mysql 5.0.67 + dbexpress 2.0 + mysql50open
开发控件:tsimpledataset+datasoure+dbgrid/dbedit
权限:mysql已经授权用户有select/update权限.
但是如果数据有修改,applyupdates(0)始终报告出错.
加入outputdebugstring(pchar(strList)),在view/debug windows/event log中监测到两条错误信息:
"Record not found or changed by another user."
"Unable to find record. No key specified."

解决方法:
from http://delphi.ktop.com.tw/board.php?cid=30&fid=66&tid=35255