Calculate Table

Hi Anonymous ,

1.My sample data is this.

2.Create calculated columns to get Open date and Close date.

OpenDate = 
VAR month =
    SWITCH (
        RIGHT ( 'Table'[Open], 3 ),
        "Jul", 7,
        "Aug", 8,
        "Sep", 9,
        "Oct", 10,
        "Nov", 11,
        "Dec", 12,
        "Jan", 1,
        "Feb", 2,
        "Mar", 3,
        "Apr", 4,
        "May", 5,
        "Jun", 6
    )
RETURN
    DATE ( 2020, month, LEFT ( 'Table'[Open], 2 ) )

CloseDate = 
VAR month =
    SWITCH (
        RIGHT ( 'Table'[Close], 3 ),
        "Jul", 7,
        "Aug", 8,
        "Sep", 9,
        "Oct", 10,
        "Nov", 11,
        "Dec", 12,
        "Jan", 1,
        "Feb", 2,
        "Mar", 3,
        "Apr", 4,
        "May", 5,
        "Jun", 6
    )
RETURN
    DATE ( 2020, month, LEFT ( 'Table'[Close], 2 ) )

3.Create a calendar table.

Dates =
ADDCOLUMNS (
    CALENDAR ( DATE ( 2020, 1, 1 ), DATE ( 2020, 12, 31 ) ),
    "day", DAY ( [Date] ),
    "Period",
        DAY ( [Date] ) & "/"
            & FORMAT ( [Date], "mmm" )
)

4.Create a new table which is a combination and filtering of the previous two tables.

NewTable =
SUMMARIZE (
    ADDCOLUMNS (
        FILTER (
            CROSSJOIN ( 'Dates', 'Table' ),
            [Date] <= [CloseDate]
                && [Date] >= [OpenDate]
                && [day] = 1
        ),
        "Days by Month",
            IF (
                EOMONTH ( [Date], 0 ) < [CloseDate],
                DAY ( EOMONTH ( [Date], 0 ) ),
                DAY ( [CloseDate] )
            )
    ),
    [Ticket],
    [Period],
    [Days by Month]
)

You can check more details from here.

Best Regards,

Stephen Tao

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