Is the soql query the same as the aggregateresult class?
Since Apex is a case-insensitive language, the compiler sees this as the same as the built-in class AggregateResult. The SOQL query is known to return a List , as in the built-in class, but your local variable results is being read as a List , as in the class you’re writing here.
Do you need to call get from aggregateresult?
You need to call get from AggregateResult, not List . Instead of ar.get (‘cnt’), you could for instance do ar [0].get (‘cnt’). ar is of type AggregateResult [] (also known as List ). You are aliasing correctly, but you must call get () on a single AggregateResult.
Which is an example of aggregateresult in Salesforce?
Here is an example to use AggregateResult in Salesforce. In below example I’m using COUNT (fieldname) aggregate function in SOQL to show Account record respective number of Contacts. We were unable to load Disqus Recommendations.
How to use aggregateresult in soql in apex?
The aggregate functions COUNT (fieldname), COUNT_DISTINCT (), SUM (), AVG (), MIN () and MAX () in SOQL return an AggregateResult object or a List of AggregateResult objects. We can use aggregate functions result in apex by using AggregateResult object. Here is an example to use AggregateResult in Salesforce.
When to use aggregate function in Salesforce query?
Note that any query that includes an aggregate function returns its results in an array of AggregateResult objects. AggregateResult is a read-only sObject and is only used for query results. Aggregate functions become a more powerful tool to generate reports when you use them with a GROUP BY clause.
When to use aggregate functions in soql apex?
AggregateResult is a read-only sObject and is only used for query results. Aggregate functions become a more powerful tool to generate reports when you use them with a GROUP BY clause. For example, you could find the average Amount for all your opportunities by campaign.