mongodb-scala

Coll.update(condition, new BasicDBObject("$set", data), true, true)) This is my update query in mongodb for some records it gives result as { "err" : null , "updatedExisting" : true , "n" : 1 , "ok" : 1.0} and at that time stored update query execute properly. but for some records it give result as { "err" : "not okForStorage" , "code" : 12527 , "n" : 0 , "ok" : 1.0} records neither update nor stoare in db in data there are multiple BasicDBList (list) used. if some one knows plz reply Thanks Ryan More than likely there are invalid characters in your document fields/keys. For example, you can't

I am using mongoDB in which I have collection of following format. {"id" : 1 , name : x ttm : 23 , val : 5 } {"id" : 1 , name : x ttm : 34 , val : 1 } {"id" : 1 , name : x ttm : 24 , val : 2 } {"id" : 2 , name : x ttm : 56 , val : 3 } {"id" : 2 , name : x ttm : 76 , val : 3 } {"id" : 3 , name : x ttm : 54 , val : 7 } On that collection I have queried to get records in descending order like this: db.foo.find({"id" : {"$in" : [1,2,3]}}).sort(ttm : -1).limit(3) But it gives two records of same id = 1 and I want records such that it gives 1 record per id . Is it possible in mongodb? There is a