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?
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 …
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 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 …
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 …
Multiplication aggregate operator in SQL - Stack Overflow
Dec 28, 2018 · In SQL there are aggregation operators, like AVG, SUM, COUNT. Why doesn't it have an operator for multiplication? "MUL" or something. I was wondering, does it exist for …
select - SQL: How to filter after aggregation? - Stack Overflow
Apr 2, 2013 · SQL: How to filter after aggregation? Asked 12 years, 7 months ago Modified 6 years, 3 months ago Viewed 62k times
SQL GROUP BY CASE statement with aggregate function
CASE WHEN col1 > col2 THEN SUM(col3*col4) ELSE 0 END AS some_product And I would like to put it in my GROUP BY clause, but this seems to cause problems because there is an …
sql server - Multiple aggregate functions in one SQL query from …
Apr 16, 2010 · I'm working on creating a SQL query that will pull records from a table based on the value of two aggregate functions. These aggregate functions are pulling data from the …