Asynchronous Apex features and when to use each

 Hi,

Apex offers multiple ways for running your Apex code asynchronously.

We have to choose the asynchronous Apex feature that best suits your needs.

The following table lists the asynchronous Apex features and when to use each.

Asynchronous Apex Feature	When to Use
Queueable Apex	To start a long-running operation and get an ID for it To pass complex types to a job To chain jobs
Scheduled Apex	To schedule an Apex class to run on a specific schedule
Batch Apex	For long-running jobs with large data volumes that need to be performed in batches, such as database maintenance jobs For jobs that need larger query results than regular transactions allow
Future Methods	When you have a long-running method and need to prevent delaying an Apex transaction When you make callouts to external Web services To segregate DML operations and bypass the mixed save DML error

Reference:

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_async_overview.htm?search_text=Asynchronous%20apex