parse / stringify sql (select grammar) in js.

sql grammar follows https://dev.mysql.com/doc/refman/5.7/en/select.html

• ${value} like value place holder support.
• benchmark

• Hexadecimal Literals as x'01af' X'01af', but 0x01af is supported.
• keyword COLLATE.
• parammarker: keyword PREPARE / EXECUTE / DEALLOCATE
• variable: keyword SET / CREATE PROCEDURE / CREATE FUNCTION
• identifier expr: ODBC escape syntax
• matchexpr: Full-Text Search Functions. // to support
• intervalexpr: Date INTERVAL keyword. // to support
• into outfile: INTO OUTFILE keyword. // to support

npm install --save js-sql-parser

const parser = require('js-sql-parser');
const ast = parser.parse('select * from dual');

console.log(JSON.stringify(ast, null, 2));

ast.value.selectItems.value[0].value = 'foo';
ast.value.from.value[0].value.value.value = 'bar';

console.log(parser.stringify(ast));
// SELECT foo FROM bar

<script src="./dist/parser/sqlParser.js"><script/>

var sqlParser = window.sqlParser;
var ast = sqlParser.parse('select * from dual');
var sql = sqlParser.stringify(ast);

...