How to make a new table based on entries from an old table, but with one line per month per project?

[Anonymous]

I am fairly new to Power BI.

I want to generate a new table based on entries from an old table. The new table should hold one line per month per project and order number for the time perriod listed in the old table. I made a dummy table to illustrate the problem. How to do this?

Thank you in advanced for your input!

Old Table
Project#	Order#	Month	Year
1	A	Jan	2017
1	A	Mar	2017
1	A	Mai	2017
1	B	Jan	2016
2	A	May	2017
New Table
Project#	Order#	Month	Year
1	A	Jan	2017
1	A	Feb	2017
1	A	Mar	2017
1	A	Apr	2017
1	A	Mai	2017
1	B	Jan	2016
2	A	May	2017

[v-yulgu-msft · Accepted solution]

Hi @Anonymous,

First, please add a conditional column in original table (suppose it's 'Test_2') in query editor mode.

In data view mode, create below summarized table with DAX:

Test_3 =
SUMMARIZE (
    Test_2,
    Test_2[Project#],
    Test_2[Order#],
    Test_2[Year],
    "StartMonth", MIN ( Test_2[MonthNumber] ),
    "EndMonth", MAX ( Test_2[MonthNumber] )
)

Create a calendar table and add Year, Month columns to it.

calendar TB =
FILTER (
    CALENDAR ( DATE ( 2016, 1, 1 ), DATE ( 2017, 12, 31 ) ),
    DAY ( [Date] ) = 1
)

MonthName in Calen = [Date].[Month]
MonthNo in Calen = [Date].[MonthNo]
Year in Calen = [Date].[Year]

Cross join above two tables.

Test_4 =
SELECTCOLUMNS (
    FILTER (
        CROSSJOIN ( Test_3, 'calendar TB' ),
        'calendar TB'[MonthNo in Calen] >= Test_3[StartMonth]
            && 'calendar TB'[MonthNo in Calen] <= Test_3[EndMonth]
            && Test_3[Year] = 'calendar TB'[Year in Calen]
    ),
    "Project#", [Project#],
    "Order#", [Order#],
    "Month", [MonthName in Calen],
    "Year", [Year]
)

Best regards,

Yuliana Gu

[Anonymous]

Thank you @v-yulgu-msft. This worked perfectly!