arangosh> db.example.insert({"a" : 1});
{
"_id" : "example/331697736",
"_rev" : "331697736",
"_key" : "331697736"
}
arangosh> db.example.update("example/19988371",
........> { "b" : null, "c" : null, "d" : 3 });
{
"_id" : "example/19988371",
"_rev" : "332156488",
"_key" : "19988371"
}
arangosh> db.example.document("example/19988371");
{
"b" : null,
"c" : null,
"d" : 3,
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "332156488"
}
arangosh> db.example.update("example/19988371", { "a" : null }, false, false);
{
"_id" : "example/19988371",
"_rev" : "332418632",
"_key" : "19988371"
}
arangosh> db.example.document("example/19988371");
{
"b" : null,
"c" : null,
"d" : 3,
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "332418632"
}
arangosh> db.example.update("example/19988371",
........> { "b" : null, "c": null, "d" : null }, false, false);
{
"_id" : "example/19988371",
"_rev" : "332680776",
"_key" : "19988371"
}
arangosh> db.example.document("example/19988371");
{
"_id" : "example/19988371",
"_key" : "19988371",
"_rev" : "332680776"
}