# User Session Query Language **URL:** \ **Category:** Real User Monitoring\ **Tags:** user-sessions\ **Created:** [January 16, 2020, 12:04pm UTC](https://community.dynatrace.com/t/user-session-query-language/22908 "2020-01-16T12:04:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![echwallah](https://avatars.discourse-cdn.com/v4/letter/e/9e8a1a/32.png) [@echwallah](https://community.dynatrace.com/u/echwallah)\ **Post date:** [January 16, 2020, 12:04pm UTC](https://community.dynatrace.com/t/user-session-query-language/22908/1 "2020-01-16T12:04:05Z")
Is there a way that Dynatrace can use a default value for a null return field in USQL. I have tried ISNULL and COALESCE but these KEYWORDS are not supported. ---
**Author:** ![ctturner](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/ctturner/32/11883_2.png) [@ctturner](https://community.dynatrace.com/u/ctturner)\ **Post date:** [January 16, 2020, 1:07pm UTC](https://community.dynatrace.com/t/user-session-query-language/22908/2 "2020-01-16T13:07:49Z")
Not that I am Aware of. I would recommend reaching out to Dynatrace support chat who can look into this deeper. The User Session Query language is limited and can be viewed as its own Dynatrace Language. -Chad ---
**Author:** ![jonathan\_schull](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/jonathan_schull/32/15062_2.png) [@jonathan\_schull](https://community.dynatrace.com/u/jonathan_schull)\ **Post date:** [January 16, 2020, 8:11pm UTC](https://community.dynatrace.com/t/user-session-query-language/22908/3 "2020-01-16T20:11:47Z")
Hi Erick, It is not currently possible to rename results from a USQL query. If this is a feature that you would like to see added to Dynatrace, I suggest creating a Product Idea here: [https://community.dynatrace.com/t5/forums/postpage/board-id/DynatraceProductIdeas](https://community.dynatrace.com/t5/forums/postpage/board-id/DynatraceProductIdeas) so this idea can be seen by the product team. Thanks, Jonathan