arangosh> db.example.insert({"a" : 1});
{
"_id" : "example/19988372",
"_key" : "19988372",
"_rev" : "_WgE9L4e--_"
}
arangosh> db.example.update("example/19988371",
........> { "b" : null, "c" : null, "d" : 3 });
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "_WgE9L4i--_",
"_oldRev" : "_WgE9L4a--_"
}
arangosh> db.example.document("example/19988371");
{
"_key" : "19988371",
"_id" : "example/19988371",
"_rev" : "_WgE9L4i--_",
"d" : 3,
"c" : null,
"b" : null
}
arangosh> db.example.update("example/19988371", { "a" : null }, false, false);
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "_WgE9L4q--_",
"_oldRev" : "_WgE9L4i--_"
}
arangosh> db.example.document("example/19988371");
{
"_key" : "19988371",
"_id" : "example/19988371",
"_rev" : "_WgE9L4q--_",
"d" : 3,
"c" : null,
"b" : null
}
arangosh> db.example.update("example/19988371",
........> { "b" : null, "c": null, "d" : null }, false, false);
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "_WgE9L42--_",
"_oldRev" : "_WgE9L4q--_"
}
arangosh> db.example.document("example/19988371");
{
"_key" : "19988371",
"_id" : "example/19988371",
"_rev" : "_WgE9L42--_"
}