Why are aggregate functions not allowed in where clause
@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 - TSQL Pivot without aggregate function - Stack Overflow
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.
Aggregate function in SQL WHERE-Clause - Stack Overflow
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 …
Aggregate on datetime in sql with group by - Stack Overflow
Jun 24, 2016 · The following are available aggregate functions for SQL AVG() - Returns the average value COUNT() - Returns the number of rows FIRST() - Returns the first value …
select - SQL: How to filter after aggregation? - Stack Overflow
Apr 2, 2013 · SQL: How to filter after aggregation? Asked 12 years, 6 months ago Modified 6 years, 3 months ago Viewed 61k times
SQL Server pivot on 2 (or multiple) aggregates - Stack Overflow
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
Aggregate SQL Function to grab only the first from each group
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 …
sql - Applying the MIN aggregate function to a BIT field - Stack …
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 without aggregate function - Stack Overflow
Nov 19, 2013 · SQL requires that if a column is in the SELECT clause and is not used within an aggregate function, it must be included in the GROUP BY clause. Since resource.rId is …
What is the difference between PARTITION BY and GROUP BY
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 …