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SAMEPERIODLASTYEAR

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Applies to: Calculated column Calculated table Measure Visual calculation

Note

This function is discouraged for use in visual calculations as it likely returns meaningless results.

Returns a table that contains a column of dates shifted one year back in time from the dates in the specified dates column, in the current context.

Syntax

SAMEPERIODLASTYEAR(<dates>)

Parameters

Term Definition
dates A column containing dates.

Return value

A single-column table of date values.

Remarks

  • The dates argument can be any of the following:

    • A reference to a date/time column,
    • A table expression that returns a single column of date/time values,
    • A Boolean expression that defines a single-column table of date/time values.

  • Constraints on Boolean expressions are described in the topic, CALCULATE.

  • The dates returned are the same as the dates returned by this equivalent formula: DATEADD(dates, -1, year)

  • This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.

Example

The following sample formula creates a measure that calculates the previous year sales of Reseller sales.

= CALCULATE(SUM(ResellerSales_USD[SalesAmount_USD]), SAMEPERIODLASTYEAR(DateTime[DateKey]))

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Time intelligence functions Date and time functions PREVIOUSYEAR PARALLELPERIOD