mysql-query-builder-ts v0.1.4

Query Builder

Create Reference Database

const dbname = Database('dbname');

Create Table Schema

dbname.table('User', {
  code: 'pk',
  name: 'string',
});

dbname.table('Rating', {
  id: 'pk_auto_increment',
  user_code: 'fk',
  note: 'number',
});

Data Manipulation

SQL Commands

• INSERT

  // INSERT INTO dbname.User (code, name) VALUES ('1234', 'Jhon');
  Models.User
    .insert({
      code: '1234',
      name: 'Jhon'
    })
    .exec();

• UPDATE

  // UPDATE dbname.User SET name = 'Zoe' WHERE User.code = '1234';
  Models.User
    .update({
      name: 'Zoe',
    })
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234'
    })
    .exec();

• DELETE

  // DELETE FROM dbname.User WHERE User.code = '1234';
  Models.User
    .delete()
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234'
    })
    .exec();

Data Query

SQL Commands

• SELECT
  • All attributes

    // SELECT * FROM dbname.User;
    Models.User
      .select()
      .exec();

  • Only attributes

    // SELECT User.name FROM dbname.User;
    Models.User
      .select('User.name')
      .exec();

Join Clauses

• INNER JOIN

  // SELECT * FROM dbname.Rating INNER JOIN dbname.User ON dbname.User.code = dbname.Rating.user_code;
  Models.Rating
    .join<Models.UserColumns>({
      type: 'INNER',
      table: Models.User.name,
      leftColumn: 'User.code',
      rightColumn: 'Rating.user_code'
    })
    .select()
    .exec();

• LEFT JOIN

  // SELECT * FROM dbname.Rating LEFT JOIN dbname.User ON dbname.User.code = dbname.Rating.user_code;
  Models.Rating
    .join<Models.UserColumns>({
      type: 'LEFT',
      table: Models.User.name,
      leftColumn: 'User.code',
      rightColumn: 'Rating.user_code'
    })
    .select()
    .exec();

• RIGHT JOIN

  // SELECT * FROM dbname.Rating RIGHT JOIN dbname.User ON dbname.User.code = dbname.Rating.user_code;
  Models.Rating
    .join<Models.UserColumns>({
      type: 'RIGHT',
      table: Models.User.name,
      leftColumn: 'User.code',
      rightColumn: 'Rating.user_code'
    })
    .select()
    .exec();

Clauses

• WHERE

  // SELECT * FROM dbname.User WHERE User.code = '1234';
  Models.User
    .select()
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234',
    })
    .exec();

• GROUP BY
• HAVING
• ORDER BY
• DISTINCT
• UNION

Logical Operators

• AND

  // SELECT * FROM dbname.User WHERE User.code = '1234' AND User.name = 'Jhon';
  Models.User
    .select()
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234',
    })
    .and({
      column: 'User.name',
      operator: '=',
      data: 'Jhon',
    })
    .exec();
  
  // SELECT * FROM dbname.User WHERE User.code = '1234' AND ( User.name = 'Jhon' OR User.name = 'Zoe' );
  Models.User
    .select()
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234',
    })
    .and({
      column: 'User.name',
      operator: '=',
      data: 'Jhon',
      priority: 'START',
    }).or({
      column: 'User.name',
      operator: '=',
      data: 'Zoe',
      priority: 'END',
    })
    .exec();

• OR

  // SELECT * FROM dbname.User WHERE User.code = '1234' OR User.name = 'Jhon';
  Models.User
    .select()
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234',
    })
    .or({
      column: 'User.name',
      operator: '=',
      data: 'Jhon',
    })
    .exec();
  
  // SELECT * FROM dbname.User WHERE User.code = '1234' OR ( User.name = 'Jhon' AND User.name = 'Zoe' );
  Models.User
    .select()
    .where({
      column: 'User.code',
      operator: '=',
      data: '1234',
    })
    .or({
      column: 'User.name',
      operator: '=',
      data: 'Jhon',
      priority: 'START',
    }).and({
      column: 'User.name',
      operator: '=',
      data: 'Zoe',
      priority: 'END',
    })
    .exec();

• NOT

Relational Operators

• EQUAL

  // SELECT * FROM dbname.User WHERE Rating.note = 1;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: '=', // Equal Operator
      data: 1,
    })
    .exec();

• GREATER THAN

  // SELECT * FROM dbname.User WHERE Rating.note > 1;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: '>', // Greater Than operator
      data: 1,
    })
    .exec();

• LESS THAN

  // SELECT * FROM dbname.User WHERE Rating.note < 1;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: '<', // Less Than operator
      data: 1,
    })
    .exec();

• GREATER THAN OR EQUAL

  // SELECT * FROM dbname.User WHERE Rating.note >= 1;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: '>=', // Greater Than Or Equal operator
      data: 1,
    })
    .exec();

• LESS THAN OR EQUAL

  // SELECT * FROM dbname.User WHERE Rating.note <= 1;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: '<=', // Less Than Or Equal operator
      data: 1,
    })
    .exec();

• DIFFERENT THAN

  // SELECT * FROM dbname.User WHERE Rating.note <> 1;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: '<>', // Different Than operator
      data: 1,
    })
    .exec();

• LIKE

  // SELECT * FROM dbname.User WHERE User.name LIKE 'Jh%';
  Models.User
    .select()
    .where({
      column: 'User.name',
      operator: 'LIKE',
      data: {
        data: 'Jh',
        likeOperator: 'STARTS',
        not: false,
      }
    })
    .exec();

• BETWEEN

  // SELECT * FROM dbname.Rating WHERE Rating.note BETWEEN 3 AND 5;
  Models.Rating
    .select()
    .where({
      column: 'Rating.note',
      operator: 'BETWEEN',
      data: {
        rangeStart: 3,
        rangeEnd: 5,
        not: false,
      },
    })
    .exec();

• IN

  // SELECT * FROM dbname.User WHERE User.name IN ('Jhon', 'Zoe');
  Models.User
    .select()
    .where({
      column: 'User.name',
      operator: 'IN',
      data: {
        data: ['Jhon', 'Zoe'],
        not: false,
      }
    })
    .exec();

Aggregation Functions

• AVG
• COUNT
• SUM
• MAX
• MIN

License

mysql-query-builder-ts is licensed under the MIT license. MIT