Description: When the bar code scanning, the system scan from the merchandise table items of basic information, scan items the first to enter the sale of a temporary table. When the confirmation, click buy, buy at the same time, into the sale of a single detail and sales table, sales table to generate a sales number, the sales details of a single reference to the sale of a single number of the sales table. At the same time, the activation of the trigger, while reducing the number of the corresponding goods in the inventory table, or a decrease in the number of items in the supermarket warehouse
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超市收银系统.doc
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