How can I turn this column into a date type with a mm-yyyy format on power query?

[alopez802]

I want to turn this column into a date type in power query but keep the month-year format. How can I achieve this on power query?

[ronrsnfld]

You cannot. If you want the date displayed like that in the Power Query UI, you will have to set the data type to text and use a formula like: 

Table.TransformColumns(#"Previous Step",{"Column Name", each Date.ToText(_,"MM-yyyy"), type text})

Unlike Excel (or Power BI), Power Query does not have a separate formatting option for data.

[alopez802]

I tried implementing your idea. In the step prior I made PGP Match a text type and then in the following step I implemented your step but got the result seen in the picture below. What did I do wrong?

[ronrsnfld]

Maybe I am misunderstanding you.

If you already have the column PGP Match as text, there's no need to change it into anything. As I wrote, you cannot change it into a date and have it display as `MM-yyyy` in the Power Query editor.

My solution is a method of generating PGP Match from a column that already has a Date.

[alopez802]

Okay that makes sense. I misunderstood you the first time. Thank you.

[nickvanmaele]

In Power Query, when you turn text string "11-2022" into a date, it will add a day which is the first date of the month. Without a day being specified, it is not a date. Hence, here is no real date which is called "11-2022". 

It seems that you are looking for a display solution. 

In Power Query, you could keep date 2022-11-01 (or 01/11/2022 or 11/01/2022 or whatever your local date format is). In Power BI or Excel, you can change the display format for that particular column to "MM-YYYY"