I need to compare a new dates with the other dates in that column.

Jeff Zorn

For Example I have a column called Start Date. When a new start date is added I need to compare it to all the other start dates. I am guessing I should use another helper column, but I need the brain power on this

Mike TV

@Jeff Zorn

Does this accomplish what you're after?

Example Sheet:

Same Date Count formula:

=COUNTIF([Start Date]:[Start Date], =[Start Date]@row)

Is Taken? formula:

=IF([Same Date Count]@row > 1, true, false)

Mike TV

@Jeff Zorn

Hi Jeff. You need to compare one Start Date to another and do what exactly under which circumstances?

Jeff Zorn

I actually need to compare a new start date to all the existing dates before. This is to check if their is a conflict in those dates

Mike TV

@Jeff Zorn

Does this accomplish what you're after?

Example Sheet:

Same Date Count formula:

=COUNTIF([Start Date]:[Start Date], =[Start Date]@row)

Is Taken? formula:

=IF([Same Date Count]@row > 1, true, false)