You might get a QueryException in a SOQL for loop with the message Aggregate query has too many rows for direct assignment, use FOR loop. This exception is sometimes thrown when accessing a large set of child records (200 or more) of a retrieved sObject inside the loop, or when getting the size of such a record set.
For example, the query in the following SOQL for loop retrieves child contacts for a particular account. If this account contains more than 200 child contacts, the statements in the for loop cause an exception.
for (Account acc : [SELECT Id, Name, (SELECT Id, Name FROM Contacts) FROM Account WHERE Id IN ('<ID value>')]) {
}
In order to avoid System.QueryException: Aggregate query has too many rows for direct assignment, use FOR loop, make sure the sub query is limited as follows.
for (Account acc : [SELECT Id, Name, (SELECT Id, Name FROM Contacts LIMIT 200) FROM Account WHERE Id IN ('<ID value>')]) {
}
List <SelectOption> recTypeList = new List <SelectOption>();
for (RecordTypeInfo info: Case.SObjectType.getDescribe().getRecordTypeInfos()) {
if(info.isAvailable()) {
recTypeList.add(new SelectOption(info.getRecordTypeId(), info.getName()));
}
}
Here in below example I’ve a custom object “Customer__c”, which has two record types “HR” and “Marketing”.
Apex Class:
public with sharing class recordTypeSample{
public String selectedRT {get;set;}
public List<SelectOption> recordTypeList {get;set;}
public Customer__c customer {get;set;}
public recordTypeSample(){
customer = new Customer__c();
recordTypeList = new List<SelectOption>();
getRecordTypeList();
}
public void getRecordTypeList(){
List<RecordType> rtList = [SELECT Id,Name FROM RecordType WHERE SObjectType='Customer__c'];
recordTypeList.add(new SelectOption('--None--', '--None--'));
for(RecordType rt : rtList)
{
recordTypeList.add(new SelectOption(rt.Id, rt.Name));
}
}
public void getPickListValues(){
if(selectedRT != null){
customer = new Customer__c(RecordTypeId = selectedRT);
}
}
}
/services/data/v39.0/tooling/query?q=Select Id,ValidationName,Active,Description,EntityDefinition.DeveloperName,ErrorDisplayField, ErrorMessage From ValidationRule WHERE EntityDefinition.DeveloperName = 'Account'
