在实现持久层中工具的应用(2)

 

 

ü         修改E-R模型，同步数据库

新增字段EMAIL：

 

选择菜单Database>Modify Database..，弹出Database Modification对话框, 并按确定后执行画面如下：（注意如果要直接生成到DB中， 则应选择ODBC generation选项）

 

 

 

 

ü         POWERDESIGN中的执行日志：

Database Generation Generation: Check model starting... Generation: Check model successful. Sorting objects... Sort completed. Script Generation... Dropping Indexes... -> Index: PRIMARY (PRIMARY) Dropping Tables... -> Dropping columns of the table user (user)... Creating Tables... -> Creating columns of the table user (user)... -> Column: email (email) -> Creating indexes of the table user (user)... Dropping Indexes... Dropping Tables... Creating Tables... Script Generation completed Generation successful   Usage:   (1) Start command prompt   (2) Go to the directory D:/project-src/hibernate-workspace/document/   (3) Start the SQL interpreter:         mysql.exe   (4) Run the database creation script:         mysql> source crebas.sql Modification of database successful