How To Optimise SOQL Performance


Salesforce Object Query Language (SOQL) is an indispensable tool for Salesforce developers, enabling them to retrieve and manipulate data stored within their organization’s Salesforce instance. However, writing efficient SOQL queries can be challenging, especially when dealing with large data sets or complex operations. In this blog post, we’ll explore some tips and tricks for optimizing your SOQL query performance, ensuring your Salesforce applications run smoothly and efficiently.

  1. Select only the necessary fields

One of the simplest ways to optimize your SOQL query performance is to select only the fields you need. Avoid using “SELECT *” or retrieving all fields when you only require a subset of them. Limiting the data returned can reduce the amount of processing and memory required, leading to faster query performance.

  1. Use filters and indexes

When querying large data sets, using filters can significantly improve performance. Make use of WHERE clauses to narrow down the data you’re querying, and leverage indexed fields to optimize search performance. Salesforce automatically indexes standard fields like Id, Name, and CreatedDate, but you can also create custom indexes for your specific use cases.

  1. Use relationship queries

SOQL allows you to query related objects using relationship queries. Instead of writing separate queries for parent and child objects, you can retrieve data from both in a single query. This can help reduce the number of queries executed, improving overall performance.

  1. Limit query rows

To prevent large result sets from consuming excessive resources, use the LIMIT keyword to restrict the number of rows returned by your query. This is particularly useful when you only need a sample of data or when working with paginated results.

  1. Optimize query order

The order in which you structure your query can impact its performance. In general, it’s best to filter your query before performing operations like sorting or aggregating. This ensures that operations are only performed on the data you need, reducing processing time.

  1. Avoid querying large data sets in real-time

When dealing with large data sets, it’s best to avoid real-time queries whenever possible. Instead, consider using asynchronous processing or batch Apex to handle the data processing in the background, ensuring that your application remains responsive to user interactions.

  1. Use SOQL for loops

Using SOQL for loops can help you manage the memory consumption of your queries. Instead of retrieving all query results at once, a SOQL for loop retrieves and processes data in smaller chunks, preventing memory overflow issues.


Optimizing your SOQL query performance is crucial for creating efficient and responsive Salesforce applications. By following the tips and tricks outlined in this blog post, you can harness the power of SOQL to its full potential, ensuring your queries run smoothly and deliver the data you need in a timely manner. Remember to continually monitor and refine your queries to maintain optimal performance as your Salesforce organization evolves.

Cameron Ofoluwa

Cameron Ofoluwa

22 Year Old Salesforce Developer @ Pogust Goodhead & Founder of SFDXHours.

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