>Either in command window, or in form.
>
>It seem release the cursor alias after I use 'Use' to add table?
>Is it a bug or what thing I did wrong?!

USE by default opens the new table in the current working area; if there is a cursor in use in that area, it will close that cursor, and as a result, the content is lost. You can either USE...IN 0, or SELECT 0, before opening a new table to avoid this behavior.