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abhishek satputeabhishek satpute 

what is tune queries used in your batch Apex code?

Best Answer chosen by abhishek satpute
SwethaSwetha (Salesforce Developers) 
HI Abhishek,

Can you share more context of your ask so I can suggest better? Is this a statement taken from https://trailhead.salesforce.com/content/learn/modules/asynchronous_apex/async_apex_batch ? If so, it is referring to optimizing the SOQL query.

The best practices to improve Query Performance are listed in:
https://help.salesforce.com/articleView?id=000336230&type=1&mode=1
https://help.salesforce.com/articleView?id=000325257&type=1&mode=1

Hope this helps you. Please mark this answer as best so that others facing the same issue will find this information useful. Thank you