John, > Is there a state of the art in using org-tables as little databases > with joins and stuff?
i have to admit i do all that with an R code source block. (the dplyr package has the relevant joins, e.g. dplyr::inner_join().) and, in R, ":colnames yes" as a header argument gives you header lines on results. (maybe that's ?now? for "all" languages?) Greg https://dplyr.tidyverse.org/articles/two-table.html?q=join#mutating-joins
