STF之RethinkDB一

quick start

quickstart

#install
npm install rethinkdb 
# start from where it is installed.
$ rethinkdb
...
...
Listening for intracluster connections on port 29015
Listening for client driver connections on port 28015
Listening for administrative HTTP connections on port 8080
Listening on cluster addresses: 127.0.0.1, ::1
Listening on driver addresses: 127.0.0.1, ::1
Listening on http addresses: 127.0.0.1, ::1
To fully expose RethinkDB on the network, bind to all addresses by running rethinkdb with the `--bind all` command line option.
Server ready, "gebitangHoster_wil" c4bc2619-a3aa-4edf-9d4e-5c85aee397ff

#use the drivers from Node.js like this:
$ node
r = require('rethinkdb');
r.connect({ host: 'localhost', port: 28015 }, function(err, conn) {
  if(err) throw err;
  r.db('test').tableCreate('tv_shows').run(conn, function(err, res) {
    if(err) throw err;
    console.log(res);
    r.table('tv_shows').insert({ name: 'Star Trek TNG' }).run(conn, function(err, res)
    {
      if(err) throw err;
      console.log(res);
    });
  });
});

explore it from browser

• dataexplorer from http://localhost:8080/#dataexplorer
• By default, RethinkDB creates a database named test.

create table

var r = require('rethinkdb');
r.db('test').tableCreate('tv_shows')

insert some JSON documents

var r = require('rethinkdb');
r.table('tv_shows').insert([{ name: 'Star Trek TNG', episodes: 178 },
                            { name: 'Battlestar Galactica', episodes: 75 }]);

queries

var r = require('rethinkdb');
r.table('tv_shows').filter(r.row('episodes').gt(100));

# delete 
r.db('stf').table('users').filter(r.row('email').eq('[email protected]')).delete()

cook in Node

practice in Node
cook book
API ref

基本操作类型

新建db：

# explore
r.dbCreate("geb");
# nodejs
r.dbCreate("blog").run(conn, function(err, result) {
    if (err) throw err;
    console.log(result);
});

重命名db：
r.db("geb").config().update({name: "new_geb_name"})

删除db：

r.dbDrop('dbName');

查询操作：

r.db('stf').table('users').filter(r.row('email').eq('[email protected]')).delete()

r.db('stf').table('devices').filter(r.row('phone')("imei").eq('355967063870308'))

r.db('stf').table('devices').filter(r.row('serial').eq('4df7db0b52a6114b')).delete()

api for drop table

文档齐全；API doc充分

RethinkDB limitations

• db个数无限制
• 表个数无限制
• 每张表最小10MB，空表默认也会占用4MB空间
• 单条记录大小无限制，但考虑到性能表现，最大不要超过16MB
• 最大查询JSON大小为64MB
• 主键最大127个字符

SQL -- NoSQL -- ReQL 对于STF来说，足够用了。更详细到数据库架构，参考官网

permissions-and-accounts
system-tables
administration-tools