monggo find insert remove update index

./bin/mongo --host xupan003 --port 27017

use bike

db.auth('xp','xp')

show tables

--createCollection
db.createCollection("bike")
db.createCollection("user")
db.createCollection("logs")

db.dropDatabase("bike")

--insert
db.logs.insert({"name":"xp","age":"25"})
db.logs.insert({"name":"jay","age":"38"})
db.logs.insert({"name":"jolin","age":"36"})
db.logs.insert({"name":"jj","age":"25"})

--find
db.logs.find()
db.logs.find({"name":"xp"})
db.logs.find({"name":"xp","age":"25"})
db.logs.find({"name":"xp","age":"25"})

--update 更新多条数据
db.logs.update({"age":"25"},{$set:{"age":"18"}},{multi:true})
更新第一个满足的数据
db.logs.update({"age":"18"},{$set:{"age":"25"}})

--删除
db.logs.remove({"name":"jolin"})
db.logs.insert({"name":"jj","age":"24"})
--删除第一条满足的数据
db.logs.remove({"name":"jj"},1)

--查看索引
db.logs.getIndexs()

--添加索引. 1:升序
db.logs.ensureIndex({"name":1})

--删除索引
db.logs.dropIndex({"name":1})

/usr/local/devtools/mongdb/mongodb3.4

drwxr-xr-x 2 root root  4096 Dec 15 10:54 bin
drwxr-xr-x 4 root root  4096 Dec 19 13:03 db
-rw-r--r-- 1 1046 1046 34520 Aug 24  2015 GNU-AGPL-3.0
drwxr-xr-x 2 root root  4096 Dec 15 10:58 logs
-rw-r--r-- 1 root root   223 Dec 15 14:20 mongodb.conf
-rw-r--r-- 1 root root     5 Dec 15 11:35 mongo.pid
-rw-r--r-- 1 1046 1046  1359 Aug 24  2015 README
-rwxr-xr-x 1 root root   160 Dec 15 14:59 startMongoService.sh
-rwxrwxrwx 1 root root    70 Dec 15 14:24 stopMongoService.sh
-rw-r--r-- 1 1046 1046 22660 Aug 24  2015 THIRD-PARTY-NOTICES

start
bin/mongod --port 27017 --auth --fork -dbpath=/usr/local/devtools/mongdb/mongodb/db/ --logpath=/usr/local/devtools/mongdb/mongodb/logs/mongodb.log --logappend