What is database getQueryLocator in Salesforce?

Database. getQueryLocator returns a Query Locator that runs your selected SOQL query returning list that can be iterated over in bathc apex or used for displaying large sets in VF (allowing things such as pagination).Click to see full answer. In this way, what is database BatchableContext in Salesforce?Database. BatchableContext represents the parameter type of a batch job method and contains the batch job ID.Also, how many records can be fetched using database Querylocator in start method? Its worth noting that while the governor limits are bypassed in the start() method, there is still an overall limit of 50 million records, per the docs: When you’re using a simple query (SELECT) to generate the scope of objects in the batch job, use the Database. People also ask, what is database stateful in Salesforce? Stateful is when the execute method modifies a class variable in a way meant to be used across multiple execute methods or in the finish method. The majority of batches you will ever write will not need Database. Stateful. It’s important to know that using Database.What is dynamic SOQL in Salesforce?Dynamic SOQL. Dynamic SOQL refers to the creation of a SOQL string at run time with Apex code. Dynamic SOQL enables you to create more flexible applications. For example, you can create a search based on input from an end user or update records with varying field names.