>I must to append or delet the records from different stations in same time
>I have ~300.000 recs.
Since you apparently need shared access, you can some combination of optimistic buffering, transaction, and record locking.
Optimistic buffering - and checking for the result of TableUpdate() - is enought in most cases. Transactions are required if you want to do changes on several tables, and make sure that either all or nothing is saved.
Record locking is seldom required any more with VFP.
Hilmar.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
