Why are aggregate functions not allowed in where clause
34 Why can't we use aggregate function in where clause Aggregate functions work on sets of data. A WHERE clause doesn't have access to entire set, but only to the row that it is currently …
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.
SQL GROUP BY CASE statement with aggregate function
And I would like to put it in my GROUP BY clause, but this seems to cause problems because there is an aggregate function in column. Is there a way to GROUP BY a column alias such as …
select - SQL: How to filter after aggregation? - Stack Overflow
Apr 2, 2013 · SELECT department, SUM(sales) as "Total sales" FROM order_details GROUP BY department HAVING SUM(sales) > 1000; Which will exclude all sales with a value less than or …
sql - GROUP BY without aggregate function - Stack Overflow
Nov 19, 2013 · Functionally, if you use GROUP BY with no Aggregate functions in the select, you are just doing a DISTINCT. Oracle seems to use different methods for each, but it ends with …
sql - Using group by on multiple columns - Stack Overflow
Mar 10, 2010 · Here I am going to explain not only the GROUP clause use, but also the Aggregate functions use. The GROUP BY clause is used in conjunction with the aggregate …
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 …
Why do we need GROUP BY with AGGREGATE FUNCTIONS?
Dec 22, 2012 · 4 If you don't specify GROUP BY, aggregate functions operate over all the records selected. In that case, it doesn't make sense to also select a specific column like EmployeeID.
How do I select columns together with aggregate functions?
Jun 23, 2012 · If I use GROUP BY coID, I get Incorrect syntax near the keyword 'WHERE'. If I change the WHERE to HAVING because of the aggregate functions, I get errors telling me to …