【mongo】mongoVUE使用

1.查询存在字段“test”的项

{"test":{$exists:true}}

2.在表中插入字段

{$set:{"test":""}}

3.正则匹配

{"test":new RegExp('.*123.*')}

4.注意，mongoVUE不支持distinct语法

原因：http://stackoverflow.com/questions/12373842/how-to-use-distinct-in-mongovue

I don't think you can do that using MongoVUE. You can do it through MongoDB shell running a command like this:

db.[Collection Name].distinct({Property Name})
ex: db.students.distinct('age')
db.students.distinct('age').length; // gives you the record count

I usually find SQL to Mongo Mapping Chart page useful in these case (http://www.mongodb.org/display/DOCS/SQL+to+Mongo+Mapping+Chart )