Are you using any VIEWS ?

Maybe you can first try a

SQLDISCONNECT(0)

>Hi Sergey,
>I get this message even if it is the first statement that I enter in the command window in a new VFP session.
>
>Barry.
>
>>You have to close DBC opened shared in order to open it exclusively.
>>
>>>When I try to open a database and edit the referential integrity I am warned that the database is not opened exclusively even when I use the following syntax to open it:
>>>

OPEN DATABASE sop.dbc EXCLUSIVE

>>>
>>>If I try

VALIDATE RECOVER

I am again warned that the dbc is not opened exclusively.
>>>
>>>Anyone got any suggestions as to what I am doing wrong?
>>>
>>>Thanks
>>>Barry Sutton