mysql-insert-multiple

Node.js Utility to generate mysql insert statement, with multiple values.

Data source can be Array of object, or streamed objects.

install

npm install mysql-insert-multiple

Simple Usage

var InsertQuery = require('mysql-insert-multiple');
InsertQuery( options );

Example:

var Query = InsertQuery({
  table: 'person',
  data: [
    {
      'name': 'Jo',
      'sex' : 'Male'
    },
    {
      'name': 'Po',
      'sex' : 'Female'
    },
  ]
})
 
console.log(Query.next());
// insert into `person` (`name`,`sex`) values ('Jo','Male'), ('Po','Female')

Default Settings

{
  maxRow: 5000,
  maxByte: 10000000,
  prefix: 'insert into',
  suffix: ''
  data: undefined,
  table: undefined,
  database: undefined,
}

maxRow

The maximum number of row in one query.

maxByte

The maximum number of byte (character) in one query.

prefix

Query prefix to use. e.g: insert ignore into

suffix

Query suffix to use. e.g: on duplicate key update `name` = values(`name`)

data (optional)

The data to insert to.

table

The table to insert into.

database (optional)

The database to insert into.

Streamed data source

You can use a streamed data source. As long as the data streamed is an object. Like, the one you get from a select statement, or streaming a csv file.

var conn = require('mysql').createConnection( connOptions );
 
conn.query('select * from sometable').stream()
.pipe( InsertQuery({ table: 'person' }).stream() )
.on('data',function( query ){
  console.log( query );
});

Composite data values

You can use mysql formatting in your data using composite data values. Composite data requires string and value to exists.

var Query = InsertQuery({
  table: 'person',
  maxRow: 1,
  data: [
    {
      'name': 'Jo',
      'sex' : { 
            string: 'select name from ?? where id = ?', 
            value: ['sexes', 2] 
       }
    },
    {
      'name': 'Po',
      'sex' : { 
            string: 'select name from ?? where id = ?', 
            value: ['sexes', 1] 
       }
    },
  ]
})
 
console.log(Query.next());
// insert into `person` (`name`,`sex`) values ('Jo', select name from `sexes` where id = 2)
 
console.log(Query.next());
// insert into `person` (`name`,`sex`) values ('Po', select name from `sexes` where id = 1)

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