In VFP9 only

DELETE MyTable;
    FROM MyTable;
    JOIN MyCursor ON MyCursor.Id = MyTable.Id 

UPDATE MyTable;
    SET SomeField = SomeValue;
    FROM MyTable;
    JOIN MyCursor ON MyCursor.Id = MyTable.Id

>First, I pull some records:
>
>

>SELECT *;
>  FROM MyTable;
>  WHERE SomeValue = 1;
>  INTO CURSOR MyCursor
>

>
>Next, update or delete from original table:
>
>

>
>  UPDATE MyTable;
>    SET SomeField = SomeValue;
>    WHERE Id IN;
>     (SELECT Id FROM MyCursor)
>
>  ** OR
>
>  DELETE FROM MyTable;
>    WHERE Id IN;
>     (SELECT Id FROM MyCursor)
>
>

>
>These 2 SQL's are very slow. How can I do thses using joins?
>
>Thanks