Can you use aggregate functions in WHERE clause?
An aggregate function can be used in a WHERE clause only if that clause is part of a subquery of a HAVING clause and the column name specified in the expression is a correlated reference to a group. If the expression includes more than one column name, each column name must be a correlated reference to the same group.
Which SQL clause is used with aggregate functions?
The aggregate function is often used with the GROUP BY clause and HAVING clause of the SELECT statement. The AVG() aggregate function calculates the average of non-NULL values in a set.
How to use aggregate functions in soql queries?
Use aggregate functions in a GROUP BY clause in SOQL queries to generate reports for analysis. Aggregate functions include AVG (), COUNT (), MIN (), MAX (), SUM (), and more. You can also use aggregate functions without using a GROUP BY clause.
How is the HAVING clause used in soql?
HAVING. HAVING is an optional clause that can be used in a SOQL query to filter results that aggregate functions return. With API version 18.0 and later, you can use a HAVING clause with a GROUP BY clause to filter the results returned by aggregate functions, such as SUM().
Is it possible to use an aggregate function in the where clause?
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.
How are rows counted in aggregate function in Salesforce?
All aggregate functions other than COUNT () or COUNT (fieldname) include each row used by the aggregation as a query row for the purposes of limit tracking. For COUNT () or COUNT (fieldname) queries, limits are counted as one query row, unless the query contains a GROUP BY clause, in which case one query row per grouping is consumed.