Power Query Excel filter rows using start and end date from cell values in spreadsheet

[DAMyers]

I have a power query from SQL database to an Excel workbook. I need to filter the query rows using a start and end date from cells in the workbooks. I created the cells with values 5/1/2025 for start date and 5/31/2025 for end date. I then selected the start date cells and selected and created a query using Data==>Get Data from Table/Range. This created a Power Query named StartDate. I did the same for EndDate value resulting in query End date.

I am attempting to filter rows in my main query using these two query values. When I alter the main query filter rows code like this:

= Table.SelectRows(#"Filtered Rows3", each [SAMPLED_DATE] >= StartDate and [SAMPLED_DATE] <= EndDate)

I get this error:

Expression.Error: We cannot apply operator < to types Table and DateTime.
Details:
Operator=<
Left=[Table]
Right=5/8/2025 11:02:25 AM

I have checked and the data type for [SAMPLED_DATE], StartDate, and EndDate are all Date/Time. What am I missing?

[jgeddes · Accepted solution]

It looks like your 'Start Date' and 'End Date' references are tables. You may want to look at using Table.FirstValue(). Something like the following might work for you.

Table.SelectRows(#"Filtered Rows3", each [SAMPLED_DATE] >= Table.FirstValue(StartDate) and [SAMPLED_DATE] <= Table.FirstValue(EndDate))