Mogodb and Pymongo

Ubuntu Installation: Apt-get install Mongdb
If you need to use Python link MongoDB also need to install Pymogo:pip install Pymongo
1. Try the Pymongo link MongoDB first
>import Pymongo
>con=pymongo. Connection (' localhost ', 27017)
>db = Con.test
>table=db.foo
>table.insert ({' py ': ' Pymongo '}) #插入一条数据

Or simplify the point:
Table=pymongo. Connection (' localhost ', 27017). Test.foo
Table.insert ({' KKK ': ' kkkk ', ' pppp ': ' PPPP '})

2. Common commands for Rights management
Use admin #进入数据库admin
Db.adduser (' name ', ' pwd ') #增加或修改用户密码
Db.system.users.find () #查看用户列表
Db.auth (' name ', ' pwd ') #用户认证 this one returns 1 for certification success, only successful authentication can operate on the database
Db.removeuser (' name ') #删除用户
Show Users #查看所有用户
Show DBS #查看所有数据库 Show Collections #查看所有的collection (Similar enquiry form, show tables)
Db.printcollectionstats () #查看各collection的状态
Db.printreplicationinfo () #查看主从复制状态
3: Link Database test
Mogodb>use test #一般默认就是链接test数据库的, can not write, link other libraries need Mogodb>db.foo.insert ({data: ' 2014-9-21 '}) #向foo集合 (table) Insert a Bar data
Mogodb>db.foo.update ({a:1},{a:2}) #向foo集合更新一条数据, if there is no match to {a:1}, add a data {a:2}
Mogodb> db.users.update ({age:25}, {$set: {name: ' ChangeName '}}, False, True);
Equivalent to: Update users set name = ' ChangeName ' where age = 25;
Mogodb> db.users.update ({name: ' Lisi '}, {$inc: {age:50}}, False, True);
Equivalent to: Update users set age = Age + where name = ' Lisi ';
Mogodb> db.users.update ({name: ' Lisi '}, {$inc: {age:50}, $set: {name: ' HoHo '}}, False, True);
Equivalent to: Update users set age = Age +, name = ' HoHo ' WHERE name = ' Lisi ';

Mogodb>db.foo.find () #向foo集合 (table) query strip data;
Mogodb>db.foo.findone () #向foo集合 (table) query bar data, Jons display
Mogodb>db.foo.remove ({a:1}) #向foo集合 (table) deletes a single piece of data
Mogodb>db.foo.remove () #向foo集合 (table) Delete all data
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Use KKK #链接数据库kkk, the database is automatically created when you insert the database KKK
Db.tables.insert ({}) #创建集合 (table) tables and insert data; Insert empty data if set exists
Db.tables.save ({}) #创建集合 (table) tables, and save the data, such as the collection exists test new empty data and save
Db.tables.drop () #删除oo集合 (table)
Db.getname () #获取当前使用的数据库名称1
DB #获取当前使用的数据库名称2
Db.dropdatabase () #删除当前使用的数据库
db.repairdatabase ();#修复当前使用的数据库
db.clonedatabase ("127.0.0.1");   #从指定机器克隆数据库
db.copydatabase ("mydb",  "temp",  "127.0.0.1");  #从指定机器复制指定数据库到某库
Db.getmongo (); Get the machine address of the link db

Mogodb and Pymongo