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This article mainly explains "what are the skills of the next generation of ADO.NET". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what are the skills of the next generation of ADO.NET?"

For example, the following example:

This is a common relational database. The next generation of ADO.NET mainly describes the basic information and sales of employees. If we want to get the names and job information of all full-time employees recruited on January 1, 2006, we need to write the following sql query:

1SELECT c.FirstName, e.Title 2FROM Employee e 3INNER JOIN Contact c ON e.EmployeeID = c.ContactID 4WHERE e.SalariedFlag = 1 AND e.HireDate > = '2006-01-01'

If we analyze this complex sql statement, we will find that it has the following shortcomings:

If an application only processes the information of the next generation of ADO.NET, we must standardize the logical data relationship. In this way, we have to pay attention to the relationship between the database table and the table (for example, the employee's contact information and name are in different tables), and we need to artificially do an inline cross-query between the two tables to get the correct data.

Thank you for reading, the above is the content of "what are the skills for the use of the next generation of ADO.NET". After the study of this article, I believe you have a deeper understanding of what the skills for the use of the next generation of ADO.NET are, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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