>It looks like each one of the tables of my SQl Server database has a column timestamp_column of type timestamp. I don't remember adding this column. How could it have gotten there?
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>Also, the Insert into a table fails pointing that Default should be used when inserting to timestamp_column. How do you do it?
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>Thank you in advance.
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>UPDATE: I found that not all tables have this column but a lot of them. Could this column been added by VFP wizard that converted VFP database to SQL Server? Is it then ok to delete this column?

Dmitry,
I don't know how you might have gotten it, maybe wizard is adding but I don't use wizards.

A timestamp column is a column used for concurrency and is a misnomer (have noting to do with time). Other name is more clear "rowversion". You don't update it, it is updated automatically and set to a database width unique big integer value with each update. In pseudocode it is used like:

if primarykey = primarykeyValueIHave and timestamp = timeStampValueIHave
then it is the record I retrieved and nobody else tampered with it

Cetin