This article describes how to use row_number () over () to automatically generate row numbers in SQL Server databases.
The SQL Server database row_number () over () to automatically generate row numbers is what we will introduce in this article. Next we will take an instance to learn about this part. Example:
Requirement: You need to count the Website access traffic, which user's IP address is used to access the website and which connection is used to access the website.
Prompt. Group by userip, sort by time, and then the last number.
CodeAs follows:
Select row_number () over (PartitionUseripOrderInserttime), * From useraccess and above are the process of Automatically Generating row numbers in the SQL Server database row_number () over,
You can also automatically generate numbers based on a field.
Select row_number () over (OrderInserttime), * From useraccess and above are the process of Automatically Generating row numbers in the SQL Server database row_number () over,