How to pull Day from Date in Power Query Editor

[rachelbabcock]

Hi! I have a question that should hopefully be simple to resolve.

In my dataset, I have a "dates" column that includes every single day between January 1 and December 31. I need to narrow this to just include rows where the day of the month is the 1st. I'd like to do this in Power Query Editor so that I can limit the size of data being pulled into my report, but cannot figure out how to write this using M language.

Esesntially, I just need a custom column that says IF(Day(DatesColumn) = 1, 1), because then I'll filter my dataset to just the 1s. 

Any help would be great! Thanks!

[russell_rsd]

hello, i tried seeing previous solution, but i couldn't as the Date option is inactive. please help find the solution

[russell_rsd]

got it, thanks

[PaulDBrown · Accepted solution]

@rachelbabcock 

1) Select the date column in Power Query, select add a new column, and select the Date options in the ribbon:

You will get this

2) Now select the day column and filter out the days you don't need.

[Syndicate_Admin]

Hello!

I am trying your solution but when I extract the day, it gives me one less number, that is, the date 28/11/22, it gives me day 27

Best regards

[PaulDBrown]

@Anonymous 

Try changing the Fecha.Fallo column to type Date (not Date/time) before adding the Day column

[rachelbabcock]

I knew it was something easy I just hadn't considered..THANK YOU!

[VijayP]

@rachelbabcock 

in Power Query you can use Add Column from Example . Right Click on Date Column and use Add column from Example which will invoke a Blank Column in the Extreme Right. Change the column name what ever you want and inthe First Row Type 1 (assuming the Date in that row is 1st ) and click OK to get only date number 1,2,3 etc . 

Let me know if this helps or need any further help!