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After the student information management system finished work, began to set up the computer room charge system. With some experience in student information management systems, it is important to analyze functions and tables before starting. Only clear the relationship between, in the system can be handy. The following is a preliminary analysis of the table and table relationships: Table Build: The Student Basic information table is consistent with

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Shares It means free software, not paid, but shared with everyone. However, there are some time-limited paid software, also known as shareware. Shareware is a copyrighted software that is sold "first-use and then paid". Based on the authorization of the shareware author, users can get copies of it free of charge from various channels, or they can spread it freely. Users can always use or test the shareware first, and then pay the author if you think i

"Check the MDF file-"OK"Click OKhaha ~ the Attach succeededOf course, there are two ways to solve the problem besides this one (by myself)The first copy of the file to be attached is copied to the SQL Server default data folder, and then the attach succeeds.Another option is to select Windows Authentication when logging in to verify that you can attach a success.Additionally, there may not be a "security" tab in the properties of the XP user directory. WORKAROUND: Open My Computer-tools-Director

Tags: style os using IO data ar CTI Code timeAfter accepting the three-story idea, SqlHelper is being preached about the number of advantages it brings to our code, the amount of time and energy that the coder spends, and so forth the words of praise. Self is also doubtful, after all, I have no personal experience, so there is no great experience. And now, many times I used the SqlHelper, shuttle between the layers really also realized that it brings us the simplicity, combined with a lot of peo