Sometimes, we need to update values of tables from the values from another table. Here is an example:
UPDATE `transactions` t , `tran_daily` daily SET t.col_manager = daily.Col_manager, t.invoice_date = daily.Invoice_date, t.due_date = daily.Due_date, t.po_no = daily.Po_no, t.remark = daily.Remark, t.gross_amount = daily.Gross_amount, t.adjustments = daily.Adjustments, t.open_amount = daily.Open_amount, t.bill_to = daily.Bill_to WHERE t.company = daily.Company AND t.trans_type = daily.Trans_type AND t.invoice_no = daily.Invoice_no AND t.line_no = daily.Line_no |