Awesome

mex-sqlite3

An extension for MATLAB® or GNU/octave to access sqlite3 databases

Compilation for octave :

mkoctfile --mex -lsqlite3 -o sqlite3.mex sqlite3.c structlist.c

Then add resulting sqlite3.mex file to octave search path, for example :

% cd to your .mex file
p = genpath(pwd);
addpath(p);
savepath;