What are filter functions in power bi DAX How does LOOKUPVALUE work

This recipe explains what are filter functions in power bi DAX This recipe explains how does LOOKUPVALUE work

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Recipe Objective - What are filter functions in Power BI DAX? How does LOOKUPVALUE work?

The filter and value functions in DAX are some of the most complex and powerful and differ greatly from Excel functions. The lookup functions work by using tables and relationships, like a database. The filtering functions let you manipulate data context to create dynamic calculations.

LOOKUPVALUE - Returns the value for the row that meets all criteria specified by search conditions. The function can apply one or more search conditions.

Table of Contents

Syntax of LOOKUPVALUE -

LOOKUPVALUE( result_columnName, search_columnName, search_value, [search2_columnName, search2_value]… , [alternateResult] )

Parameters -

result_columnName - The name of an existing column that contains the value you want to return. It cannot be an expression.

search_columnName - The name of an existing column. It can be in the same table as result_columnName or in a related table. It cannot be an expression.

search_value - The value to search for in search_columnName.

Returns the value for the row that meets all criteria specified by one or more search conditions.

In this way, we can use the LOOKUPVALUE function in Power BI DAX.

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