Oct 26, 2016 · This sql code throws an . aggregate functions are not allowed in WHERE. SELECT o.ID , count(p.CAT) FROM Orders o INNER JOIN Products p ON o.P_ID = p.P_ID WHERE count(p.CAT) > 3 GROUP BY o.ID; How can I avoid this error?

Jan 19, 2013 · However, for RDBMSs that have "windowing" functions, what you want is feasible. E.g. use aggregate functions without a GROUP BY. Example for SQL-Server, where all rows (names) in the table are counted: SELECT Name , COUNT(*) OVER() AS cnt FROM People How does the above work? It shows the Name like the COUNT(*) OVER() AS cnt did not exist and

Jul 9, 2013 · SQL Fiddle DEMO If the column A is varchar (You said that in the comment below) try this way: select max(A) from( SELECT cast(A as int) as A,B FROM MyTable UNION ALL SELECT B,C FROM MYAnotherTable ) Tab

Jun 23, 2012 · You have two aggregate functions ; a COUNT and a SUM; this means that you are required to do some grouping and the general rule of thumb is GROUP BY the non aggregate section of the select clause The really big problem in your OP is that when you JOIN two tables, whatever flavour (LEFT, RIGHT, OUTER, INNER, CROSS) it has to be in the FROM ...

Nested aggregate functions, Max(Avg()), in SQL [closed] Ask Question Asked 11 years, 10 months ago.

Jun 21, 2016 · Mysql / Mariadb also have BIT_AND and BIT_OR aggregate functions which you can apply to columns of boolean values. Postgres has BOOL_AND and BOOL_OR. I think it would give the same result as this suggestion of using MIN or MAX function, but arguably easier to understand the intention. –

Oct 8, 2010 · In T-SQL for SQL Server 2005 (replace the CTE with an inline subquery if not): WITH ownership AS ( SELECT owner, COUNT(dog_name) AS num_dogs, 0 AS num_cats -- counts all non-NULL dog_name FROM dogs GROUP BY owner UNION SELECT owner, 0 AS num_dogs, COUNT(cat_name) as num_cats -- counts all non-NULL cat_name FROM cats …

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, including how to get involved in further driving demand, see Itzik Ben-Gan's blog .

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 any example how it would be possible. But my answer was marked false and now I want to know in which cases it is possible to use an aggregate function in the WHERE. Also if ...

By definition, all pivots aggregate, however there is a simple way to make sure all the data gets pivoted. The columns besides for the pivot are the group by's. So you can create a row_number in your data partioned by the other group by's and include that in your pivot data. for example: