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SQL to Sequelize Mapping Chart

青鬼

2014-12-07 07:14

因为最近都在看 Sequelize 相关的一些文档, 为了备忘, 我自己整理了一下 SQL 到 Sequelize 的转换对应表.

SQL to Sequelize Mapping Chart

I like SQL to MongoDB Mapping Chart post,
so I create the same chart between SQL and Sequelize.

All demo runable codes at sequelize.js.

Create Table

SQL: CREATE TABLE

CREATE TABLE IF NOT EXISTS `user` (
 `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'primary key',
 `gmt_create` datetime NOT NULL COMMENT 'create time',
 `gmt_modified` datetime NOT NULL COMMENT 'modified time',
 `name` varchar(100) NOT NULL COMMENT 'user name',
 `ip` varchar(64) NOT NULL COMMENT 'user last request ip',
 `npm_user` tinyint(1) DEFAULT '0' COMMENT 'user sync from npm or not, 1: true, other: false',
 PRIMARY KEY (`id`),
 UNIQUE KEY `name` (`name`),
 KEY `gmt_modified` (`gmt_modified`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='user base info';

Sequelize: sequelize.define()

var User = sequelize.define('User', {
  name: {
    type: Sequelize.STRING(100),
    allowNull: false,
    comment: 'user name',
  },
  ip: {
    type: Sequelize.STRING(64),
    allowNull: false,
    comment: 'user last request ip',
  },
  isNpmUser: {
    field: 'npm_user',
    type: Sequelize.BOOLEAN,
    allowNull: false,
    defaultValue: false,
    comment: 'user sync from npm or not, 1: true, other: false',
  }
}, {
  tableName: 'user',
  comment: 'user base info',
  indexes: [
    {
      unique: true,
      fields: ['name']
    },
    {
      fields: ['gmt_modified']
    }
  ],
  createdAt: 'gmt_create',
  updatedAt: 'gmt_modified',
  charset: 'utf8',
  collate: 'utf8_general_ci',
});

Insert

SQL: INSERT INTO

INSERT INTO user(name, ip, gmt_create, gmt_modified)
  VALUES ("fengmk2", "127.0.0.1", now(), now());

Sequelize: sequelize.build() and sequelize.save()

var user = yield User.build({
  name: 'fengmk2',
  ip: '127.0.0.1'
}).save();

Select

User.findAll({
  where: {
    id: {
      gt: 6,              // id > 6
      gte: 6,             // id >= 6
      lt: 10,             // id < 10
      lte: 10,            // id <= 10
      ne: 20,             // id != 20
      between: [6, 10],   // BETWEEN 6 AND 10
      nbetween: [11, 15]  // NOT BETWEEN 11 AND 15
    }
  }
})

Select all

  • SQL
SELECT * FROM user;
  • Sequelize
var users = yield User.findAll();

Select one row with all columns by primary id key

  • SQL
SELECT * FROM user WHERE id = 1;
  • Sequelize
var oneUser = yield User.find(1);

Select one row with all columns by name index

  • SQL
SELECT * FROM user WHERE name = "fengmk2" LIMIT 1;
  • Sequelize
var user = yield User.find({
  where: {
    name: 'fengmk2'
  }
});

Select one row with some columns by name index

  • SQL
SELECT name, ip FROM user WHERE name = "fengmk2";
  • Sequelize
var user = yield User.find({
  attributes: ['name', 'ip'],
  where: {
    name: 'fengmk2'
  }
});

Select rows where name not equal 'fengmk2'

  • SQL
SELECT * FROM user WHERE name != "fengmk2";
  • Sequelize
var users = yield User.findAll({
  where: {
    name: {
      ne: 'fengmk2'
    }
  }
});

Select rows where name not equal 'fengmk2' and id bigger than 100

  • SQL
SELECT * FROM user WHERE name != "fengmk2" AND id > 2;
  • Sequelize
var users = yield User.findAll({
  where: {
    name: {
      ne: 'fengmk2'
    },
    id: {
      gt: 2
    }
  }
});

Select rows where name equal 'fengmk2' or 'yubo'

  • SQL
SELECT * FROM user WHERE name = "fengmk2" OR name = "yubo";
  • Sequelize
var users = yield User.findAll({
  where: Sequelize.or(
    {
      name: 'fengmk2'
    },
    {
      name: 'yubo'
    }
  )
});

Select rows where name start with 'feng*'

  • SQL
SELECT * FROM user WHERE name LIKE 'feng%';
  • Sequelize
var users = yield User.findAll({
  where: {
    name: {
      like: 'feng%'
    }
  }
});

Select rows where name contains 'mk' and order by id desc

  • SQL
SELECT * FROM user WHERE name LIKE '%mk%' ORDER BY id DESC;
  • Sequelize
var users = yield User.findAll({
  where: {
    name: {
      like: '%mk%'
    }
  },
  order: [ [ 'id', 'desc' ] ]
});

Select COUNT(*)

  • SQL
SELECT COUNT(*) FROM user;
  • Sequelize
var count = yield User.count();

Select rows count where name contains %y%

  • SQL
SELECT COUNT(*) FROM user WHERE name LIKE '%y%';
  • Sequelize
var count = yield User.count({
  where: {
    name: {
      like: '%y%'
    }
  }
});

Select distinct ip count

  • SQL
SELECT COUNT(DISTINCT(ip)) FROM user;
  • Sequelize

TODO

Update

SQL: UPDATE SET

UPDATE user SET ip = '10.0.0.1', npm_user = 0, gmt_modified = now() WHERE id = 1;
UPDATE user SET npm_user = 1, gmt_modified = now() WHERE id = 2;

Sequelize: find() and save([columns])

var user = yield User.find(1);
user.ip = '10.0.0.1';
user.isNpmUser = false;
yield user.save(['ip', 'isNpmUser']);

var user = yield User.find(2);
user.isNpmUser = true;
yield user.save(['isNpmUser']);

Delete

SQL: DELETE FROM

DELETE FROM user WHERE id = 1;
DELETE FROM user;

Sequelize: Model.destroy(where)

yield User.destroy({
  id: 1
});

yield User.destroy();

Love

原文引自:http://cnodejs.org/topic/5440a2486ab98d6c509e0138

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