thanks Jim for your reply, i am very worry about my problem, I am using my project, but not any problem. After 31 March i have maessage vfp9 beta expire, so, i replace rutime files form my project or exe with new vfp9 runtime files, so, my exe or my software doing work slow, I check again, copy beta runtime files in my current folder, and change date 29 March 2005, now working good.
I have not more sql codes in my project.