No, it's is primary key, not an regular index.
>> I can't find any clues how to do this in VFP help. All Sql command doesn't
>> use for create index tag. But why not Index?
>
>I've found this in help on Alter table / Example:
>
>* Example 2
>ALTER TABLE customer ADD PRIMARY KEY cust_id TAG cust_id
>
>ALTER TABLE customer ALTER COLUMN cust_id c(5) PRIMARY KEY
>
>I guess the second line is the syntax Jerry was looking for. Some other
>key type may be used as well.
* Human is a question asked by birth and answered by death. Machine is another kind of question with another kind of answer