I’ve knocked my head against this for a while, including seeing a bunch of possibly related posts. My twist is that I’m trying to use two different data types.
I’m keeping track of something over time. These days, I can record the date it happens. For stuff that happened a while back, I only know the year. Therefore in a certain Table, I have one column for Dates (if known) and another column for Year (if date not known) . The Dates column links to a Table where each record is a date. The Year column is a multi-select dropdown list.
What I want to do is make a column called Year Overlay that extracts the year from any date in the Dates (if known) column and joins it with the year from the Year (if date not known) column.
CHAPTER Date (if known) Year (if date not known) Year Overlay (link to Dates table) (Multi-select) !! HELP!!` Ch 1 2020/10/22 2006 2006, 2020 Ch 2 2020/07/04, 2015/01/01 2015, 2020 Ch 3 2008, 2010 2008, 2010 Ch 4 2018/01/01, 2014/01/01 2007, 2016 2007, 2014, 2016, 2018 (ideally order by year) 2007, 2014, 2016, 2018 (but realistically order by column)