文档介绍：actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
实体集之间的联系：
客户和商品之间的多对多联系：订单、评论
客户和VIP会员之间的多对一联系： VIP会员等级
生产厂商和商品之间的多对多联系：供应
商品和商品类别之间的多对一联系：商品类别
客户和地址之间的一对多联系：客户地址
确定实体的属性：
客户：客户号、密码、姓名、性别、单位、电子信箱、身份证号
VIP会员表：会员等级、会员折扣
商品：商品号、商品名称、类别号、商品描述、单位、规格、单价、其他？
生产厂商表：厂商号，生产厂商名、地址、
商品类别：类别号、类别名称
地址：地址号、地址名称
确定联系的属性：
订单：订单号、客户号、商品号、收货地址、订货日期、订货数量、单价、发票号码、订单金额、发货日期
供应：商品号、厂商号
商品分类：商品类别号、类别名称
客户类型：客户号、客户类型
评论：评论号、客户号、商品号、客户邮箱、评论内容、评论时间。
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pin