To duplicate a column from one table to another, you can copy any cell from the existing column, then paste it into a new empty text field in a different table (Ctrl+C, Ctrl+V for PC; ⌘+C, ⌘+V for Mac). This will also copy over the column settings.
Note that this only works if the field you're pasting into is text and empty (this is because it assumes you want to replace that empty column with the select option column, rather just copying the values as text).
You can also use copy/paste to append records to an existing table.