启动mongodb(默认会连到test)
cangxian@cangxian-CN17S:~$ mongoMongoDB shell version: 2.4.9connecting to: test
查看所有的库
> show dbs;db (empty)ldblog 0.203125GBlocal 0.078125GBtest 0.203125GB
查看当前库
> db;test
调用库(如果不存在则会创建)
> use newTestDB;switched to db newTestDB
创建集合(同sql表)
> db.createCollection("testCollection");{ "ok" : 1 }
查看所有的集合
> show tables;system.indexestestCollection
向集合中插入测试数据(同样如果这个集合不存在会创建新的集合在插入数据)
> db.testCollection.insert({"name" : "testCollection"});
查询集合
> db.testCollection.find();{ "_id" : ObjectId("5a2d3b8e01418fe4d753f463"), "name" : "testCollection" }
删除集合
> db.createCollection("testDeleteCollection");{ "ok" : 1 }> db.testDeleteCollection.drop();true
删除表
> use testDeleteDB;switched to db testDeleteDB> db.dropDatabase();{ "dropped" : "testDeleteDB", "ok" : 1 }> show tables;> show dbs;db (empty)ldblog 0.203125GBlocal 0.078125GBnewTestDB 0.203125GBtest 0.203125GBtestDeleteDB (empty)