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what is the Use of database.querylocator in Salesforce?
What is the use of Database.querylocator in batch apex?
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This discussion was modified 6 years, 2 months ago by
Shubham.
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This discussion was modified 6 years, 2 months ago by
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2 Replies
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Database.getQueryLocator in Salesforce returns a Query Locator that runs your selected SOQL query returning list that can be iterated over in batch apex or used for displaying large sets in VF.
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- Database.getQueryLocator returns a Query Locator that runs your selected SOQL query returning list that can be iterated over in batch apex.
- The query locator can return up to 50 million records
- It should be used in instances where you want to batch a high volume of data up (pagination or batch apex).
- The database.query method should be used in instances where you are wanting to do a dynamic runtime SOQL query for your code.
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