arangosh> db.example.insert({ _key : "666", Hello : "World" });
{
"_id" : "example/666",
"_key" : "666",
"_rev" : "_YYClWx---_"
}
arangosh> db.example.insert({ _key : "666", Hello : "Universe" }, {overwrite: true, returnOld: true});
{
"_id" : "example/666",
"_key" : "666",
"_rev" : "_YYClWx---D",
"_oldRev" : "_YYClWx---_",
"old" : {
"_key" : "666",
"_id" : "example/666",
"_rev" : "_YYClWx---_",
"Hello" : "World"
}
}