node-qsb2

* Node.js Database Query String Builder (QSB) for Mysql/MariaDB
* Forked from node-qsb

* Added functions : whereIn, whereNotIn, leftJoin, rightJoin
* Insert or update 'NULL' data
* support join ON clause
* can add sub-query in 'FROM, JOIN'

Summary

* node-qsb is very simple Database Query String Builder. create String object only.
* It is independent of the Database driver module.

Available DBMS

* MySQL, MariaDB

Installation

npm install node-qsb

Example

SELECT Query

$3

``javascript
var qsb = require('node-qsb');

var qs = new qsb().select('tableName').where('idx', '>', '10').build();
qs.printString(); //SELECT * FROM tableName WHERE idx > '10';
console.log(qs.returnString()); //SELECT * FROM tableName WHERE idx > '10';

qs.where('name', '=', 'Yowu').build();
console.log(qs.returnString());
//SELECT * FROM tableName WHERE idx > '10' AND name = 'Yowu';

qs.whereOr('name', '=', 'Yu Yongwoo').build();
console.log(qs.returnString());
//SELECT * FROM tableName WHERE idx > '10' AND name = 'Yowu' OR name = 'Yu Yongwoo';
`

$3

`javascript
var qsb = require('node-qsb');

var qs = new qsb().select('tableName').get('col1').get('col2').build();
console.log(qs.returnString());
//SELECT col1, col2 FROM tableName;
`

$3

`javascript
var qsb = require('node-qsb');

var qs = new qsb().select('tableName', 'TN1')
.join('tableName2', 'TN2')
.where('TN1.idx', '<=', 1
.whereOr('TN2.idx', '=', 'TN1.idx')
.build().printString();
//SELECT * FROM tableName TN1 JOIN tableName2 TN2 WHERE TN1.idx <= '10' OR TN2.idx = 'TN1.idx';

qs.limit(0, 10).build();
console.log(qs.returnString());
//SELECT * FROM tableName TN1 JOIN tableName2 TN2 WHERE TN1.idx <= '10' OR TN2.idx = 'TN1.idx' LIMIT '0', '10';

qs.orderBy('TN1.idx', 'desc').build();
console.log(qs.returnString());
//SELECT * FROM tableName TN1 JOIN tableName2 TN2 WHERE TN1.idx <= '10' OR TN2.idx = 'TN1.idx' ORDER BY TN1.idx desc LIMIT '0', '10';
`

INSERT Query

`javascript
var qsb = require('node-qsb');

var qs1 = new qsb().insert('tableName')
.values(['colName'], ['Value'])
.build().printString();
//INSERT INTO tableName(colName) VALUES ('value');

var params = {
cols : ['col1', 'col2', 'col3', 'col4'],
vals : ['val1', 'val2', 'val3', 4000],
}
var qs2 = new qsb().insert('tableName')
.values(params.cols, params.vals)
.build().printString();
//INSERT INTO tableName(col1, col2, col3, col4) VALUES ('val1', 'val2', 'val3', '4000');

qs2.addValues(params.vals).build().printString();
//INSERT INTO tableName(col1, col2, col3, col4) VALUES ('val1', 'val2', 'val3', '4000'),('val1', 'val2', 'val3', '4000');
`

UPDATE Query

`javascript
var qsb = require('node-qsb');

var qs = new qsb().update('tableName')
.set('name', 'Yowu')
.where('idx', '=', '423')
.build().printString();
//UPDATE tableName SET name = 'Yowu' WHERE idx = '423';

qs.set('email', 'uyu423@gmail.com').build().printString();
//UPDATE tableName SET name = 'Yowu', email = 'uyu423@gmail.com' WHERE idx = '423';
`

DELETE Query

`javascript
var qsb = require('node-qsb');

var qs = new qsb().delete('tableName')
.where('idx', '=', 10)
.build()
.printString();
//DELETE FROM tableName WHERE idx = '10';
`

Make Query by Force Input

`javascript
var qsb = require('node-qsb');

var qs = new qsb().forceQuery('select * from tableName').printString();
//select * from tableName
``