jiyulongxu / js-sql-parser

SQL(select) parser written with jison. parse SQL into abstract syntax tree(AST) and stringify back to SQL. sql grammar follows https://dev.mysql.com/doc/refman/5.7/en/select.html

js-sql-parser

parse / stringify sql (select grammar) in js.

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

news

• Unicode extended char support for column name or alias & Function call in table_factor since v1.6.0 #58, #60
• Support feature PlaceHolder like ${param} since v1.5.0 #43
• Fix bug using ' & " for column alias? since v1.4.1 #40, #44
• Fix bug tableFactor alias since v1.3.0 #34
• Add support for "`" quoted alias since v1.2.2. #33
• Fix bug stringify keyword having since v1.2.1. #29
• Typo 'refrence' has been fixed to 'reference' since v1.2.0.

for more changes see CHANGELOG

commonjs usage

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

// placeholder test
const parser = require('js-sql-parser');
const ast = parser.parse('select ${a} as a');

ast['value']['selectItems']['value'][0]['value'] = "'value'";
console.log(parser.stringify(ast));
// SELECT 'value' AS a

Note: PlaceHolder is an literal value but not an identifier. Table_name / column_name / function_name are identifier thus should NOT be placed with placeholder.

script tag

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

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

AMD supported

...

unsupported grammar currently

• 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

Build

• Run npm run build to build the distributable.

LICENSE

MIT