News
Learn what aggregate functions are, how to use them in SQL queries, and why they are useful for BI. Find examples of common scenarios and calculations.
In SQL, aggregate functions are used to calculate a set of values and return a single value. When using aggregate functions in SQL, it is crucial to understand column references. A column reference is ...
SQL window functions provide extremely powerful and useful features that let you work with observations more easily. Different types explained here.
Initialize the accumulator variable(s) based on the type of aggregate functioN Retrieve the data from the table or source based on the query's filtering conditions, if any. Iterate over the retrieved ...
If you have an aggregation function (sum, avg, count) in your select clause or if you have a group by clause, all of your columns must be aggregated or grouped.<BR><BR>In the version of SQL that I ...
I realized how much easier my life would be if SQL had a mode() aggregate function. (I'm using it in the mathematical sense). I'm guessing that either I use SQL in a wierd way or there is a good ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results