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Helper I

## Dax Calculation Across Two Tables

I have a DAX calculation that perfectly works when using single table, now I ned to select columns across two tables bu I am getting error. Attaches is a screenshot. I would love if I can get help on this. Thanks.

1 ACCEPTED SOLUTION
Community Support

Hi @ninimoke  ,

If you are using a measure , you cannot directly reference a column in a table in a measure, you need to use a function to apply to a table column.

If you are using calculated columns, if there is a correspondence between the two tables (such as one-to-many), you can use the related() function to refer to a column in another table.

Best Regards,

Yolo Zhu

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

4 REPLIES 4
Community Support

Hi @ninimoke  ,

If you are using a measure , you cannot directly reference a column in a table in a measure, you need to use a function to apply to a table column.

If you are using calculated columns, if there is a correspondence between the two tables (such as one-to-many), you can use the related() function to refer to a column in another table.

Best Regards,

Yolo Zhu

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Super User

OOSLA =
VAR _Today =
TODAY ()
VAR _Date =
VAR _Severity =
SELECTEDVALUE ( Machinevulns[severity] )
VAR _DiffDays = _Today - _Date
RETURN
SWITCH (
TRUE (),
_Severity = "Medium"
&& _DiffDays >= 90, _DiffDays - 90,
_Severity = "Low"
&& _DiffDays >= 120, _DiffDays - 120,
_DiffDays >= 30, DiffDays - 30,
_Severity = "Critical"
&& _DiffDays >= 30, _DiffDays - 30
)

Helper I

@tamerj1 Thanks for the respons. This throws no error but all the calculaton turns out to be 0.

Super User

@ninimoke

``````OOSLA =
VAR _Severity =
SELECTEDVALUE ( Machinevulns[severity] )
VAR _DiffDays =
SUMX ( Alertsvulns, DATEDIFF ( Alertsvulns[Created Date], TODAY (), DAY ) )
RETURN
SWITCH (
TRUE (),
_Severity = "Medium"
&& _DiffDays >= 90, _DiffDays - 90,
_Severity = "Low"
&& _DiffDays >= 120, _DiffDays - 120,
_DiffDays >= 30, DiffDays - 30,
_Severity = "Critical"
&& _DiffDays >= 30, _DiffDays - 30
)``````