Pikchr was created by the same small group that did SQLite, and it is what creates the SQLite diagrams like the ones on this page: https://sqlite.org/lang_sele

Pikchr was created by the same small group that did SQLite, and it is what creates the SQLite diagrams like the ones on this page: https://sqlite.org/lang_select.html https://sqlite.org/lang_select.html