l Problem A 13-digit string will be presented after the barcode is scanned. In order to deal with the scanning mistake checksum,barcode,split,step,sum
l Problem The table below is an employee info list of a company. Employees in the company transfer regularly due to busgroup,table sequence,loop,file,import,keys,switch,new,sum,for
l Problem The tables below are some tables from simplified supermarket stock control system. To investigate the sales saverage,conversion,file,import,keys,switch,sum,long,floor
Here’s how to use sum() function.sum