INTERSECT DAX Function (Table manipulation)

Returns the rows of left-side table which appear in right-side table.


INTERSECT ( <LeftTable>, <RightTable> )
Parameter Attributes Description

The Left-side table expression to be used for Intersect.


The Right-side table expression to be used for Intersect.

Return values

Table An entire table or a table with one or more columns.

A table that contains all the rows in LeftTable that are also in RightTable.


Intersect is not commutative. In general, Intersect(T1, T2) will have a different result set than Intersect(T2, T1).

Duplicate rows are retained. If a row appears in table_expression1 and table_expression2, it and all duplicates in table_expression_1 are included in the result set.

The column names will match the column names in table_expression1.

The returned table has lineage based on the columns in table_expression1, regardless of the lineage of the columns in the second table. For example, if the first column of LeftTable has lineage to the base column C1 in the model, the intersect will reduce the rows based on the intersect on first column of RightTable and keep the lineage on base column C1 intact.

Columns are compared based on positioning, and data comparison does not have type coercion.

The returned table does not include columns from tables related to LeftTable. Therefore, when LeftTable corresponds to a base table, once applied to the filter context it does not involve the expanded table and it only filters columns of the base table.

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--  INTERSECT performs set intersection: the second parameter rows 
--  are intersected with the first.
--  INTERSECT keeps the data lineage of its first argument only.
VAR Days         = VALUES ( 'Date'[Day of Week] )
VAR WeekendDays  = { "Saturday", "Sunday" }
VAR DaysWeekends = INTERSECT ( Days, WeekendDays )
VAR WeekendsDays = INTERSECT ( WeekendDays, Days )

EVALUATE DaysWeekends

    "Sales Amount", [Sales Amount] 

--  In this last result, the data lineage is from WeekendDays, which does not
--  filter the Sales table and the Sales Amount measure.
    "Sales Amount", [Sales Amount] 
Day of Week
Day of Week Sales Amount
Saturday 4,332,879.26
Sunday 4,255,613.01
Value Sales Amount
Saturday 30,591,343.98
Sunday 30,591,343.98
--  INTERSECT keeps duplicates, if present in the parameters.
--  In case of context transition, there are duplicated values 
--  in the results of the measures, too.
VAR Days        = SELECTCOLUMNS ( Date, "Day of week", 'Date'[Day of Week] )
VAR WeekendDays = { "Saturday", "Sunday" }
VAR Result      = INTERSECT ( Days, WeekendDays )
        TOPN ( 5, Result ),
        "Sales Amount", [Sales Amount] 
Day of week Sales Amount
Saturday 4,332,879.26
Sunday 4,255,613.01
Saturday 4,332,879.26
Sunday 4,255,613.01
Saturday 4,332,879.26

The arguments of INTERSECT must have the same number of columns.
The following query throws an error because Date contains many more columns than WeekendDays.

VAR Days        = Date
VAR WeekendDays = { "Saturday", "Sunday" }
VAR Result      = INTERSECT ( Days, WeekendDays )
        "Sales Amount", [Sales Amount] 

Related articles

Learn more about INTERSECT in the following articles:

Related functions

Other related functions are:

Last update: Jul 12, 2024   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo, Kenneth Barber

Microsoft documentation:

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Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.


Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.


This function is deprecated. Jump to the Alternatives section to see the function to use.


A volatile function may return a different result every time you call it, even if you provide the same arguments. Click to read more.


This parameter is deprecated and its use is not recommended.

DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.


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