Audit trail are used to keep a track on the changes which has been made on a record for certain fields.

Suppose you want to keep a track on opportunity stage field changes. So you enable the audit trail.

So in this case , each time any user changes the stage , audit trail will keep the track who changed this field from what stage to what… Read more

Go through the below link for more info,

https://www.jitendrazaa.com/blog/salesforce/15-ways-to-improve-performance-of-lightning-components-in-salesforce/

Apex Class:

public class AcctController {
    @AuraEnabled
    public static List<Account> getAccnt(){
        List<Account> categeroy = [Select  Name,Industry,Phone from Account];
        return categeroy;
    } 
    }

Lightning Component:

<aura:component controller="AcctController ">
    <aura:attribute name="acctList" type="Account[]"…

Read more

Scheduler class is basically an apex class or a batch class which you want to run it at certain point of time.

Suppose you want to send an mass email to all your contacts on the end of every month. In that case you can schedule a class which will automatically send the emails on every month end.

For scheduling an apex class, you can do… Read more

FIND() will return the position of the start of the string you are looking for.

FIND('#', Name) -  returns the character position of the first # in the Name field

Below link will help you in calling a batch class from a trigger.

 

https://developer.salesforce.com/forums/?id=906F0000000DBkFIAW

A field can be made required in Different ways.

 

• While creating a field , you can make it required
• From the Page Layout you can make it required.
• Validation rule can help you in making the field as required.
• Also in code, you can make the field mandatory

I wanted a utility class which will give me a list of all salesforce id's in an Account Hierarchy.

I have an hierarchy of something like below and the hierarchy can span upto many levels in Account.

 

Capital World Investors (DEMO) – Ultimate PArent

Capital Research Global Investors (DEMO) – Parent

Fidelity Management & Research (DEMO) –… Read more