Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowJuly 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more
Experts,
how to write below subquery DAX function in Power BI? I am new to this world.
Please help.
SELECT * FROM DWH.DATATABLE WHERE SCHOOL_ID =
/*below code should be in row level security DAX Function */
SELECT SCHOOL_ID FROM DWH.RLS WHERE IDENTITYID IN
(SELECT IDENTITYID FROM DWH.RLS WHERE EMAIL=UserPrincipalName()
)
Thanks,
Raj.
Generally you will want to let your data model do the RLS work. Is your DWH.RLS table part of thedata model? Is it linked to the DWH.Datatable via the school_id ?
If yes then all you need to do is specify the RLS rule
EMAIL=UserPrincipalName()
Based on the business requirement it should be applied in sub query to get the required results.
Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.
Join Fabric Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.
| User | Count |
|---|---|
| 5 | |
| 3 | |
| 2 | |
| 2 | |
| 2 |