define external counter function SQLRowCount
     (  read-only SQL_handle_type StatementHandle,
        modifiable counter RowCount )

Returns the number of rows affected by:

• an UPDATE, INSERT, or DELETE statement.
• an SQL_ADD, SQL_UPDATE_BY_BOOKMARK, or SQL_DELETE_BY_BOOKMARK operation in SQLBulkOperations
• an SQL_UPDATE or SQL_DELETE operation in SQLSetPos.

Input argument:

• StatementHandle.

Output argument:

• RowCount. The number of affected rows.