hi sir in tally erp9 sql query i have join 2 tables but my report is not coming so i want to know how to make query

these are my query .

(1)
Code:
"SELECT $MasterId,$VoucherNumber , $MailingName, $Name,  $MrpOnLabel, $_LastPurcQty
                FROM TallyUser.CompanyVouchers CompanyVouchers, TallyUser.UniqueStockItem UniqueStockItem  WHERE $VoucherTypeName LIKE '%purchase%'"
(2)
Code:
 (@"SELECT
...