文件名称:实验 4 查询数据库
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1、从customer表中查询所有客户的姓名和电话。
2、查询库存量大于1000的商品，结果按库存量从大到小排序。
3、查询每个客户的订单金额的总和。
4、查询2005年上半年（1月1日到6月30日）订货总数大于5000的商品。
5、查询所有北京客户的订单信息，包括订单的序号、客户的姓名、商品名、数量。
6、查询所有商品在什么时间卖出了多少。
7、查询没有订单的商品信息。
8、查询每种商品的销售总数量和总金额。
-one from the customer table for the names of all customers and telephone. Two inquiries inventory of more than 1,000 commodities, stocks on average by sequencing. Three inquiries each customer's total amount of orders. Four inquiries the first half of 2005 (January 1 to June 30) the total number of orders for more than 5,000 products. Five, all inquiries Beijing customer order information, including the serial number of orders, the customer's name, trade names, the numbers. 6, inquiries all goods and the time of the number sold. 7, no orders for the commodity information. 8, inquiries every commodity in total sales volume and the total amount.
2、查询库存量大于1000的商品，结果按库存量从大到小排序。
3、查询每个客户的订单金额的总和。
4、查询2005年上半年（1月1日到6月30日）订货总数大于5000的商品。
5、查询所有北京客户的订单信息，包括订单的序号、客户的姓名、商品名、数量。
6、查询所有商品在什么时间卖出了多少。
7、查询没有订单的商品信息。
8、查询每种商品的销售总数量和总金额。
-one from the customer table for the names of all customers and telephone. Two inquiries inventory of more than 1,000 commodities, stocks on average by sequencing. Three inquiries each customer's total amount of orders. Four inquiries the first half of 2005 (January 1 to June 30) the total number of orders for more than 5,000 products. Five, all inquiries Beijing customer order information, including the serial number of orders, the customer's name, trade names, the numbers. 6, inquiries all goods and the time of the number sold. 7, no orders for the commodity information. 8, inquiries every commodity in total sales volume and the total amount.
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