Answer / shivani nadkarni

Local Cache basically uses the pre run query information rather than hitting the DB every time. The link has a very good explanation on how it works
https://www.ibm.com/support/pages/how-improve-performance-reusing-cached-data-when-running-report-cognos-analytics-11#:~:text=Steps%20to%20enable%2Fdisable%20the%20cache%20in%20Cognos%20Analytics,to%20enable%2Fdisable%20the%20default%20use%20of%20local%20cache.

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