The GROUP BY condition of a SQL statement is natively implemented by SUMMARIZE in DAX. This article shows how to use SUMMARIZE and an alternative syntax to group data.

The WHERE condition of an SQL statement has two counterparts in DAX: FILTER and CALCULATETABLE. In this article we explore the differences between them, providing a few best practices in their use.

In DAX string comparison requires you more attention than in SQL, for several reasons: DAX doesn’t offer the same set of features you have in SQL, a few text comparison functions in DAX are only case-sensitive and others only case-insensitive, and performance might have a relevant impact in your query

Using DAX as a query language you will lack a fundamental feature like projection. In fact, DAX allows you add columns to an existing table, but you cannot simply remove some column from a table. In order to do that, you have to use SUMMARIZE, or you can use ADDCOLUMNS