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What is row_number () and partition by in sql server?
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Answer Posted / Bhanu Pratap
"ROW_NUMBER()" is a window function in SQL Server used to assign a unique number to each row within an ordered result set, based on a specified column or expression. The PARTITION BY clause is used with the ROW_NUMBER() function to divide the data into separate groups before assigning row numbers. This allows for more efficient and accurate sorting and ordering of complex datasets.
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