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Q&A with Qlik: App Optimization

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Mar 25, 2026
59:21

Join Qlik Support's office-hours, recorded live, where our experts answer your questions and give more insight on App Optimization. 00:00 - Intro 01:31 - How to find the sheet or object loading time? 03:20 - Is separating data and visualization scripts a good strategy? 05:16 - How to identify fields that are not used? 06:25 - Is there an operator that should be used instead of IF? 08:46 - How to optimize an app with a large data set? 10:42 - Does having one large fact table perform better? 12:38 - Are QVDs faster to load from? 14:27 - Will it be possible to copy/paste multiple objects at once? 16:09 - Is there an App Analyzer for QlikView? 17:49 - Should using HIDE when NULL improve performance? 20:30 - What type of data model is best for historized fact tables? 24:44 - How to only load updated files? 27:05 - Does Section Access affect performance? 29:00 - Does having a lot of sheets affect performance? 31:15 - Does tagging a field "Hidden" reduce the app size? 32:36 - Do Parquet files load faster than QVD files? 34:07 - How to monitor capacity consumption? 36:08 - Can loading directly from a source be faster than QVDs? 37:40 - How to allow selecting blanks in a straight table? 39:16 - Can lots of security rules affect app performance? 41:19 - When is ODAG necessary? 43:22 - Is using a default bookmark recommended? 44:55 - Do multiple concurrent users affect performance? 47:07 - Why has the reload summary changed? 48:46 - Should Section Access be the last sheet in the script? 50:30 - How to plan the capacity for a load? 51:49 - How to easily change the column order in a straight table? 53:32 - How to best use the AGGR function? 54:48 - Can you limit the number of sheets a user can create? 56:46 - Can data islands decrease performance? 58:06 - Does using variables in Set Analysis affect performance? For more information: https://community.qlik.com/t5/Techspert-Events/Q-amp-A-with-Qlik-AI-with-Qlik-Talend-Data-Integration/td-p/2542358 Please rate this video here: https://survey.qlik.com/jfe/form/SV_6R1D8FuN4DEEjbM?VideoId=zXodiTdo7FI&VideoTitle=Q%26A%20with%20Qlik:%20App%20Optimization

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