DATATABLE Function (DAX)

How does the DATATABLE function (DAX) work?

The DATATABLE function (DAX) creates a table. The syntax allows you to define each column name and data type, and add data values to it.

DATATABLE Formula Syntax

DATATABLE(
     ColumnName1, DataType1, ColumnName2, Datatype2 … , {{Value1, Value2…}, {ValueN, ValueN+1…}…}
)

How do you use the DATATABLE function?

Used Datatable function to give flexibility in defining each column name and data type specifically while the table constructor is just an easy and fast way of creating a data table with no specific metadata setup.

Related Blog Posts

Related Support Forum Posts

Virtual tables and problem with time intelligence DAX functions
Today vs Yesterday
Help sorting a text column by index value

Considerations when using the DATATABLE function

If you want to add expression-based columns to your table, The best would be using other functions such as SelectColumns, AddColumns, or SummarizeColumns.

If you use Table Constructor to build a table, you can use any expression as the value.

Unlike DATATABLE, Table Constructor allows any scalar expressions as input values. The syntax used by DATATABLE is different from that used by Table Constructor.

The value in each cell can be only constant, not any scalar expression.
An alternative for that would be using SelectColumns, AddColumns or any other methods to get an expression-based column added to the table.

Related Video Tutorials

Formula examples using the DATATABLE function

=DataTable(“Name”, STRING, “Region”, STRING ,{ {” User1″,”East”}, {” User2″,”East”}, {” User3″,”West”}, {” User4″,”West”}, {” User4″,”East”} } )

= DATATABLE ( “Price Range”, STRING, “Min Price”, CURRENCY, “Max Price”, CURRENCY, { { “Low”, 0, 10 }, { “Medium”, 10, 100 }, { “High”, 100, 9999999 } } )

DATATABLE ( “Quarter”, STRING, “StartDate”, DATETIME, “EndDate”, DATETIME, { { “Q1”, “2015-01-01”, “2015-03-31” }, { “Q2”, “2015-04-01”, “2015-06-30” }, { “Q3”, “2015-07-01”, “2015-09-30” }, { “Q4”, “2015-010-01”, “2015-12-31” } } )

Related Course Modules

Ultimate-Beginners-Guide-To-PowerBI
Center of Excellence

DOWNLOAD


Download our comprehensive DAX Formula Reference Guide as perfect companion as you learn how to use DAX formulas within Power BI.


Download DAX Formulas Reference Guide
Download DAX Formula Reference Guide
Membership