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packages/myddas/sqlite3/sqlitest.yap

@@ -0,0 +1,92 @@
+
+:- compile(library(maplist)).
+:- use_module(library(myddas)).
+
+main :-
+		 init,
+		 main_,
+		  close.
+main_ :-
+	go,
+	fail.
+main_ .
+
+init :-
+
+    %start_low_level_trace,
+    db_open(sqlite3, '/data/user/0/pt.up.yap.yapdroid/files/Yap/chinook.db', _, _),
+    writeln('chinook has landed').
+
+go :-
+    stop_low_level_trace,
+	db_import('Artist', artist),
+    writeln(('Artist -> artist')),
+	db_import('Album', album),
+    writeln(('Album -> album')),
+	db_import('Track', track),
+    writeln(('Track -> track')).
+
+	go :-
+		db_get_attributes_types(album,Als),
+    format('~w -> ~w~n',[album,Als]),
+		db_get_attributes_types(track,Ts),
+  	    format('~w -> ~w~n',[track,Ts]),
+	db_get_attributes_types(artist,As),
+	     format('~w -> ~w~n',[artist,As]).
+go :-
+	db_number_of_fields(album,Als),
+	db_number_of_fields(track,Ts),
+	db_number_of_fields(artist,As),
+	writeln(As:Als:Ts).
+
+go :-
+		db_describe(album, Desc), writeln(album:Desc).
+go :-
+		db_describe(track, Desc), writeln(track:Desc).
+go :-
+			db_describe(artist, Desc), writeln(artist:Desc).
+go :-
+				db_show_tables(Desc), writeln(tables:Desc).
+go :-
+					db_show_tables(table(T)),
+					db_describe(T,tableinfo(FieldID,Type,Null,Primary,Default,'')),
+					 writeln(T:tableinfo(FieldID,Type,Null,Primary,Default,'')).
+
+go :-
+	go_cut0.
+
+
+go :-
+%stop_low_level_trace,
+	findall(X:Y,artist(X,Y),Ls),
+	length(Ls,Total),
+	sort(Ls, LLs),
+	length(LLs, T),
+    writeln(T:Total).
+
+go :-
+	go_cut1.
+
+go :-
+	X=1,
+    artist(X,Y),
+    writeln(X:Y).
+
+go_cut0 :-
+% start_low_level_trace,
+    artist(X,Y),
+    writeln(X:Y),
+    !.
+
+
+go_cut1 :-
+	X=1,
+    artist(X,Y),
+    writeln(X:Y),
+    !.
+
+close :-
+	db_close.
+
+:- main.
+