The following code snippet will identify the MAX value on a given dimension(s), based on the value of a specified field.  This works well if you are trying to determine which value of a given dimension that you would like to display, if there are multiple options.

By Definition:  Returns the sequential number of a row within a partition of a result set, starting at 1 for the first row in each partition.  You can then specify which row number you would like to see in your result set.

The actual SQL code is quite simple:


For simplicity, say you have the following data, which contains weekly NFL Player fantasy football stats (Running Backs), for 2 years (Weeks 1-3).  To view the entire table, execute the SQL code snippet above to view entire contents of the temp table #PlayerRank



Now, let’s say you’d like to see the top player (by FPTS) for each week, over the 2 year period?  By running the code snippet above, you will get the following results:



Update the code only display the top player (by FPTS) for each year, over the 2 year period, is easy.  Simply comment out the PARTITION BY for NFLWeek, and the query will dimension only by NFLYear:




The SQL ROW_NUMBER is handy when you are trying to isolate specific instances of a given dimension(s), based on the content of a specified field.  You can modify this macro to meet your needs.


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2 thoughts on “SQL ROW_NUMBER

    • Matt, I have added a CREATE TABLE script in the TSQL code block above, which creates a Temp table. The post now uses the content of this Temp table. Hope this helps. Feel free to post any further questions.

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