qh-flora-sql-parser

Flora SQL Parser
================


Parse simple SQL statements into an abstract syntax tree (AST) and convert it back to SQL.


Usage
-----

#### Create AST for SQL statement:

``javascript
const Parser = require('flora-sql-parser').Parser;
const parser = new Parser();
const ast = parser.parse('SELECT * FROM t');

console.log(ast);
`

#### Convert AST back to SQL:

`javascript
const Parser = require('flora-sql-parser').Parser;
const ast = (new Parser()).parse('SELECT * FROM t');
const toSQL = require('flora-sql-parser').util.astToSQL;

console.log(toSQL(ast));
`

The generated SQL is ANSI SQL compliant. To run those queries on MySQL, make sure you set correct SQL mode
`sql
SET SESSION sql_mode = 'ANSI';
``
before running any query.

Acknowledgement
--------------

This project is based on the SQL parser extracted from Alibaba's nquery module.

License
-------

MIT