alasql/test/test017.js

AlaSQL.js - JavaScript SQL database library for relational and graph data manipulation with support of localStorage, IndexedDB, and Excel

if(typeof exports === 'object') {
	var assert = require("assert");
	var alasql = require('..');
};

describe('Test 17', function() {
	it('UNION ', function(done){

	var db = new alasql.Database("db");
		db.exec('CREATE TABLE test (a int)');
		db.exec('INSERT INTO test VALUES (1)');
		db.exec('INSERT INTO test VALUES (2)');
		db.exec('INSERT INTO test VALUES (3)');
		db.exec('INSERT INTO test VALUES (4)');
		db.exec('INSERT INTO test VALUES (5)');
		db.exec('INSERT INTO test VALUES (6)');
		db.exec('INSERT INTO test VALUES (7)');

		var res = db.exec('SELECT a FROM test WHERE a<4 UNION ALL SELECT a FROM test WHERE a>2');

		assert.equal(8, res.length);
		done();
	});

	it('UNION ALL', function(done){

	var db = new alasql.Database("db");
		db.exec('CREATE TABLE test (a int)');
		db.exec('INSERT INTO test VALUES (1)');
		db.exec('INSERT INTO test VALUES (2)');
		db.exec('INSERT INTO test VALUES (3)');
		db.exec('INSERT INTO test VALUES (4)');
		db.exec('INSERT INTO test VALUES (5)');
		db.exec('INSERT INTO test VALUES (6)');
		db.exec('INSERT INTO test VALUES (7)');

		var res = db.exec('SELECT a FROM test WHERE a<4 UNION SELECT a FROM test WHERE a>2 ORDER BY a');
		assert.equal(7, res.length);

		done();
	});
});