Apex Code Practice Archives

Understand the error – System.QueryException: List has no rows for assignment to SObject

Description This issue you may encounter in apex class if you have query like this: The following query is not returning any number of records: Lead l = [SELECT Id FROM Lead WHERE Id = : recordId]; The error “List has no rows for assignment to SObject” occurs when query doesn’t return any rows. Possible Reason …

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Check if current user is Admin in Salesforce

apex, Apex Code Practice

In Salesforce, you can check if the current user is an admin by checking their profile or permissions. The easiest way to do this is by checking if the user has the “Modify All Data” permission, which is a standard permission given to system administrators. Here’s how you can check if the current user is …

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Mixed DML Operation Error in Salesforce

apex, Apex Code Practice, Salesforce

Mixed DML error in Salesforce

Delete Debug Log In Salesforce Programmatically

apex, Apex Code Practice, Salesforce

Requirement To delete debug logs programmatically in Salesforce, you can use the Salesforce Tooling API as simple Apex DML is not supported on this. Specifically, the ApexLog object represents the debug logs, and you can delete them by querying this object and then using the API to delete the logs. Apex Code

How to write a Schedulable Apex Batch Class

apex, Apex Code Practice

Introduction In this article, we will learn how to schedule an apex Batch Class in Salesforce without creating multiple classes. Apex Code

How to get Apex Job associated with Scheduled Job

apex, Apex Code Practice

Introduction You might have stumbled up upon a requirement to know the apex class behind the scheduled job (or even apex job) which is found under Setup >> Scheduled Job and this does not show the name of Apex. Solution

Error: MISSING_ARGUMENT, Id not specified in an update call: []

apex, Apex Code Practice, Apex Trigger Practice

Description This error may take place in Apex while updating the records. Reason When we update the record, the record must be existing in the database – means there should be Record Id and it should be specfied. The above given code will throw error as Id is not mentioned. The above given code will …

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How to get key prefix of an object using Apex in Salesforce

apex, Apex Code Practice, Apex Trigger Execution

GOAL SOLUTION GET OBJECT API NAME BASED ON RECORD ID GET OBJECT KEY PREFIX BASED ON OBJECT API NAME

Formula field cannot be grouped in SOQL GROUP BY in SOQL

apex, Apex Code Practice

Description Yes, it’s Salesforce restriction, as Formula fields are not indexed and groupable, query will become very slow; so Salesforce does not allow group in SOQL. Workaround

Error “Guest users are not permitted to perform this operation” while creating chatter post in flow

apex, Apex Code Practice

PROBLEM DEFINITION This error takes place when flow runs in the context of a Guest User – like Record is being created from public site or public webhook etc. SOLUTION This happens because Guest User is not allowed to create chatter post i.e. Feed Post. There are possible below approaches: 1) Using Platform Event : Guest user …

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