摘要：
练习篇：电子商务简单UML模型个人喜欢UML建模后再建数据库，特此复习下，练习代码如下：-- IT'S MUST TO CREATE THE DIRECTORY 'F:\Database\DatabaseOptimization\' BEFORE RUNNING THE CODE USE master -- NOCOUNTSET NOCOUNT ON;IF EXISTS (SELECT * FROM dbo.sysdatabases WHERE NAME='DatabaseOptimization') BEGIN DROP DATABASE Databa 阅读全文