Another common scenario is authorization perhaps only users in a particular role can delete products or can change the UnitPrice value.
另外一个比较常见的情况就是授权,比如说只有那些具有特殊权限的用户可以删除产品或是更改单价。
We are interested in two measures, Quantity purchased and Unit Price.
我们对两个度量感兴趣,购买的Quantity和UnitPrice。
Values in the UnitPrice column appear in the current culture-specific currency format, with negative values surrounded by parentheses.
UnitPrice列中的值以特定于当前区域性的货币格式显示(负值用括号括起来)。
Changes a null (unknown or undefined) value to a zero (0) value in a field named UnitPrice.
将“单价”字段中的Null(未知或未定义)值更改为零(0)值。
To create the advanced sort order in the Northwind Traders example, double-click UnitPrice.
若要在NorthwindTraders示例中创建高级排序顺序,请双击“UnitPrice”。
Displays the sum of the product of the UnitPrice and Quantity fields.
显示“单价”字段和“数量”字段乘积的总和。
Multiplies the values in fields named UnitPrice and Quantity.
将“单价”和“数量”字段中的值相乘。
In the UnitPrice column in the query design grid, select the Field row.
在查询设计网格的“单价”列中,选择“字段”行。
以上图片仅供学习交流使用,版权归原作者所有,如有侵权,请与我方联系