remove databases with non utf-8 characters in mongodb - mongodb

Question

Good afternoon
How can I remove a database with a non utf-8 character?
See in attach show the database is showed by show dbs command
Thanks for the attention
Regardsenter image description here
Alexandre Bunn

Answer 1

Usually you would do
use [db];
db.dropDatabase();
What the use command actually do is to put the database object to db. With UTF-8 database names you may find it impossible to run the use command. As an alternative way to get the db object, you can run db.getSisterDB([db name]) then drop it.
So this should do the trick:
var db2 = db.getSisterDB(emptyDbs[0].name);
db2.dropDatabase();
There's another method getSiblingDB which returns the same db object. If you are wondering what's the difference between them, well, no difference.
replset:PRIMARY> db.getSiblingDB
function (name) {
return this.getMongo().getDB(name);
}
replset:PRIMARY> db.getSisterDB
function (name) {
return this.getMongo().getDB(name);
}
EDIT:
As the solution above doesn't work for you. I think the last thing you can try is to go to dbpath, find the files named by the UTF-8 characters and delete them. You probably won't file any file under that name. Because when you see (empty) follow a db name, it usually means the db is deleted. If so, just restart the instance would fix the problem.
Remember to stop the database before doing this. And do backup before doing anything.
This way only works for MMAPv1 storage engine.