Lightning Data Service (LDS) is used to CREATE, delete, update, and load records in our component without using Apex code. Lightning Data Service is in charge of field-level security and sharing regulations. Lightning Data Service enhances efficiency and user interface consistency while simplifying access to Salesforce data. At its most basic level, Lightning Data Service can be thought of as the Lightning components' version of the Visualforce standard controller. While this statement is exaggerated, it serves to highlight a point. Use Lightning Data Service to access and alter Salesforce data in your components wherever possible.

The Lightning Data Service makes data access easier than utilising a server-side Apex controller. Read-only access can be declared explicitly in the markup of your component. Your component's JavaScript controller has nearly the same amount of code for data modification, and you can get rid of the Apex entirely. All of your data access code is condensed inside your component, reducing complexity dramatically. Aside from the CODING, Lightning Data Service has other advantages. It is based on highly efficient local STORAGE that is SHARED by all components that make use of it. Lightning Data Service records are cached and shared between components.