---
type: learning
area: learning
status: learning
date: 2026-05-03
created: 2026-05-03
updated: 1980-01-01
tags:
  - learning
---
- **TRUE** or **FALSE**: By default, the filter argument in a CALCULATE function must include simple true/false expressions based on column references and fixed values (no measures).
![[img-20250704-101906-0c5b46a7.png]]

![[img-20250704-101926-5ec09ecd.png]]

VertiPaq uses a columnar data structure , which stores data as individual columns
(rather than rows or full tables) to quickly and efficiently evaluate DAX queries

![[img-20250704-102212-cfb1f135.png]]
- Summary
![[img-20250704-121327-0fd5d3d8.png]]