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 any example how it …
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
SQL GROUP BY CASE statement with aggregate function Asked 16 years, 4 months ago Modified 2 years, 5 months ago Viewed 345k times
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 statement is used …
sql - How to sort the aggregate values from STRING_AGG () IN …
How to sort the aggregate values from STRING_AGG () IN PostgreSQL Asked 11 years, 4 months ago Modified 3 months ago Viewed 259k times
sql - Equivalent of a COUNTIF aggregate function - Stack Overflow
GROUP BY UID HAVING SUM(ContractDollars) >= 500000 The COUNTIF() line obviously fails since there is no native SQL function called COUNTIF, but the idea here is to determine the percentage of …
sql - Why can't you mix Aggregate values and Non-Aggregate values …
Jan 19, 2013 · If you use an aggregate, but doesn't specify any grouping, the query will still be grouped, and the entire result is a single group. So the query select count(*) from Person will create a single …
sql - Pivot rows to columns without aggregate - Stack Overflow
Mar 28, 2013 · Trying to figure how to write a dynamic pivot SQL statement. Where TEST_NAME could have up to 12 different values (thus having 12 columns). Some of the VAL will be Int, Decimal, or …
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 for Sql Server …
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 working on. …