Calculates the value only once per report execution per each column and stores those values in the cache. It can be useful when each row of the same column should use the same result of the calculation.

## Syntax

`ConstantColumnValue(Expression)`

CODE

## Arguments

**Expression**
| MDX expression that typically returns a measure, a tuple, or a string. |
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## Examples

Function **ConstantColumnValue** is used in default report calculations for the option **Add calculated**: Average, Median, Min, and Max, % of Total

The formula example below is the standard statistical Median calculation calculated for Average progress days.

```
CASE WHEN NOT IsEmpty([Measures].[Average Progress days]) THEN
ConstantColumnValue(CatchException(
Median(VisibleRowsSet(), [Measures].[Average Progress days])
))
END
```

CODE

## See also