Apex Triggers - 12 (Trigger Interview Question)

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[@goldylodhi2116]

Very useful

[@amitbagade3277]

Keep it up brother, waiting for new videos .
ur videos so good and interview related

[@sfdcninjas]

Thanks for your support brother

[@amitbagade3277]

@@sfdcninjas aur videos kb daal rhe ho

[@probitech9995]

Sir just out of curiosity sir I have never seen so many null check as u said it's best practices so while working in real-time is it required to use all the null check or u can ignore some

[@sfdcninjas]

You can ignore null check but it is always a good practice to apply a null check to avoid null pointer exception in apex.

[@probitech9995]

@@sfdcninjassir can we use safe navigation operator instead of this if statement

[@amitbagade3277]

At the end can we create list and add acc like insert list ? Wil it has same.result?

[@sfdcninjas]

yes you can use list or map for dml operations

[@probitech9995]

Bro do some real-time batch apex example also

[@sfdcninjas]

sure bhai

[@abhishekshudhalwar5526]

Hi bro, if we insert two case records with same account id at the same time then which record's case number will be populated in account? Please do answer

[@sfdcninjas]

Hi Abhishek , if two case records with the same account ID are inserted at the same time, the case number of the last inserted case record will be populated in the "Latest_Case_Inserted__c" field of the corresponding account.

[@user-lh6uu9iv6l]

Thank you for this wonderful series. I have just tried another approach and its working fine too.
Code:
trigger LatestCaseInserted on Case (after insert) {

if(trigger.isAfter && trigger.isInsert){
Map caseMap = new Map();

for(Case cs : trigger.new){
if(cs.AccountId != null){
caseMap.put(cs.AccountId,cs);
}
}

List caseList = [Select Id,CaseNumber,AccountId from Case where AccountId IN : caseMap.keySet()];
Map accountUpdateMap = new Map();

for(Case cs : caseList){
Account ac = new Account();
ac.Id = cs.AccountId;
ac.Latest_Case_Inserted__c = caseMap.get(cs.AccountId).CaseNumber;
accountUpdateMap.put(ac.Id, ac);
}

if(!accountUpdateMap.isEmpty()){
update accountUpdateMap.values();
}

}

}

[@sfdcninjas]

Nice one

[@diobrando1253]

why do u need caselist? u can iterate over trigger.new directly na? rest logic is fine using map is nice, but why did u query case list? we can use trigger.new and while new record will get in DB we can attach case number to acc field