@AlexPoole - I read the question to mean, "Why did the designers of SQL need to restrict the use of aggregate functions, so they can only be in a HAVING clause and not in WHERE?

sql parameterised cte query The answer to that question involves a situation where pivot without aggregation is needed so an example of doing it is part of the solution.

The SQL GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results by one or more columns. In more simple words GROUP BY …

May 13, 2014 · In a test at university there was a question; is it possible to use an aggregate function in the SQL WHERE clause. I always thought this isn't possible and I also can't find …

Oct 12, 2010 · Out of interest, there is indeed demand in SQL Server Land for new set functions but for those of the window function variety (and Standard SQL, too). For more details, …

Jun 23, 2012 · If I change the WHERE to HAVING because of the aggregate functions, I get errors telling me to remove each of the other column names that aren't contained in either an …

Also, I always run into this sort of issue when I'm forced to aggregate a field that I know (due to constraints) will always be the same value, so why can't there just be an aggregate function …

SQL GROUP BY CASE statement with aggregate function Asked 16 years, 3 months ago Modified 2 years, 4 months ago Viewed 343k times

Apr 21, 2017 · 2 First and Last do not exist in Sql Server 2005 or 2008, but in Sql Server 2012 there is a First_Value, Last_Value function. I tried to implement the aggregate First and Last …

Jul 27, 2017 · SQL Server pivot on 2 (or multiple) aggregates Asked 8 years, 2 months ago Modified 4 years, 5 months ago Viewed 20k times