sorting publication list

Question

I am trying to sort my publication list with year and month to differentiate publications from the same year. I am kind of struggling to get this right. I used one of your implementation and i manage to split in various subsection the right items calling my own .bib file but the sorting in each subsection is wrong. any help?

\documentclass{article}
\usepackage[utf8]{inputenc}
%\usepackage[T1]{fontenc}
%\usepackage[french]{babel}
\usepackage[latin1]{inputenc}
\usepackage{amsmath, amssymb}
\usepackage[backend=biber,sorting=ndymdt,style=phys]{biblatex}

\DeclareFieldFormat{labelnumberwidth}{}
\setlength{\biblabelsep}{0pt}

\DeclareSortingScheme{ndymdt}{
    \sort{
        \field{presort}
    }
    \sort[final]{
        \field{sortkey}
    }
    \sort{
        \name{sortname}
        \name{author}
        \name{editor}
        \name{translator}
        \field{sorttitle}
        \field{title}
    }
    \sort[direction=descending]{
        \field{sortyear}
        \field{year}
        \literal{9999}
    }
    \sort[direction=descending]{
        \field[padside=left,padwidth=2,padchar=0]{month}
        \literal{99}
    }
    \sort[direction=descending]{
        \field[padside=left,padwidth=2,padchar=0]{day}
        \literal{99}
    }
    \sort{
        \field{sorttitle}
    }
    \sort[direction=descending]{
        \field[padside=left,padwidth=4,padchar=0]{volume}
        \literal{9999}
    }
}

\addbibresource{mybiblio2016.bib}

\begin{document}
    \nocite{*}
    \printbibliography[type=article,title={Journal articles}]
    \printbibliography[type=inproceedings,title={Conference papers}]
    \printbibliography[type=book,title={Books chapters}]
    \printbibliography[type=unpublished,title={Presentations}]
    \printbibliography[type=misc,title={Invited talks}]
    \printbibliography[type=artwork,title={Posters}]
    \printbibliography[type=report,title={Technical notes}]
    \printbibliography[type=thesis,title={Thesis}]
    \printbibliography[type=patent,title={Patents}]
\end{document}

Answer 1

The sorting ndymdt in your MWE sorts first by name (sortname, author, editor etc.), then by year, month and day, and then by title. So you might get

Aaardvark 2010

Banana 2011

Bar 2009

Foo 2009

Zoidberg 2015

If you want to sort by date first and then by name and finally by title to get

Zoidberg 2015

Banana 2011

Aaardvark 2010

Bar 2009

Foo 2009

you need

\DeclareSortingScheme{ddatent}{
  \sort{
    \field{presort}
  }
  \sort[final]{
    \field{sortkey}
  }
  \sort[direction=descending]{
    \field[strside=left,strwidth=4]{sortyear}
    \field[strside=left,strwidth=4]{year}
    \literal{9999}
  }
  \sort[direction=descending]{
    \field[padside=left,padwidth=2,padchar=0]{month}
    \literal{00}
  }
  \sort[direction=descending]{
    \field[padside=left,padwidth=2,padchar=0]{day}
    \literal{00}
  }
  \sort[direction=descending]{
    \field[padside=left,padwidth=4,padchar=0]{volume}
    \literal{9999}
  }
  \sort{
    \name{sortname}
    \name{author}
    \name{editor}
    \name{translator}
    \field{sorttitle}
    \field{title}
  }
  \sort{
    \field{sorttitle}
    \field{title}
  }
}

which you use with sorting=ddatent.