Hi: 1)what is the difference between schema and a category?
That's to say in the cfg.xml,what is the meaning of hibernate.default_schema and hibernate.default_category?
2)how to handle the struture-same table?
I have ten tables in the db with the exact same structure,but the data is not.
For example:
I save some things in the Data_1H table like:
Code:
id eventtime ....
1 2010-01-02 12:00:00
2 2010-01-02 13:00:00
3 2010-01-02 14:00:00
And in the Data_2H table, I may save:
Code:
id eventtime ....
1 2010-01-02 12:23:00
2 2010-01-02 14:23:00
3 2010-01-02 16:23:00
So,I can not merger the data,then I wonder I have to create ten java entities with same properties to mapping the ten tables in db?
Login
FAQ
Search
