Using Query to get the dates from a cell Google sheets - google-sheets

Question

Context
Following on from this question, I am trying to make this more dynamic. I want to input data in a cell 'D1' to then make Query bring back the data from another spreadsheet. Below is a depiction of what this looks like.
This is the formula I tried:
=QUERY(Query(ImportRange("ID", "AvevaGroupPrice"),"offset 1", 0), "where Col1 >= Date " &D1)
I used this format because eventually I want to create a dynamic date range where I type the respective dates I need in the first two 'D' rows.
Problem
How can I make this work using data in cell D1?

Answer 1

Based on the Query Language Documentation, when you include date keyword you need to use a date with yyyy-mm-dd format
In your current function, the date was converted to a number when appended to the string.
Sample: ="date "&D1
Result: date 43830
You need to use TEXT() to convert the date to yyyy-mm-dd format.
Sample: ="where Col1 >= Date '"&TEXT(D1,"yyyy-mm-dd")&"'"
Result: where Col1 >= Date '2019-12-31'
(UPDATE)
You can also use TO_TEXT() to convert the Cell Value to a text value.
Sample: ="where Col1 >= Date '"&To_text(D1)&"'"
Result: where Col1 >= Date '2019-12-31'
Your Formula:
=QUERY(Query(ImportRange("ID", "AvevaGroupPrice"),"offset 1", 0), "where Col1 >= Date '"&TEXT(D1,"yyyy-mm-dd")&"'")
or
=QUERY(Query(ImportRange("ID", "AvevaGroupPrice"),"offset 1", 0), "where Col1 >= Date '"&To_text(D1)&"'")