Alasql.js vs WebSQL

JavaScript performance comparison

Revision 9 of this test case created by Meraj

Preparation code

<script src="https://raw.githubusercontent.com/agershun/alasql/develop/dist/alasql.js"></script>
<script>
  var NUM_TESTS = 1000;

  // Generate SQL statements
  var sqls = [
    'DROP TABLE IF EXISTS test1',
    'DROP TABLE IF EXISTS test2',
    'CREATE TABLE test1 (one INT, two INT)',
    'CREATE TABLE test2 (two INT, three INT)'
  ];

  for (var i = 0; i < NUM_TESTS; i++) {
    sqls.push('INSERT INTO test1 VALUES (' + i % 10 + ',' + ((i * i) % 10) + ')');
    sqls.push('INSERT INTO test2 VALUES (' + i % 10 + ',' + ((i * i) % 10) + ')');
  }
  // Complex query
  var query = 'SELECT SUM(test1.one) AS sumone, test1.two, test2.three FROM test1 JOIN test2 ON test1.two = test2.two WHERE test1.one > 5 GROUP BY test1.two, test2.three ORDER BY three, sumone';

</script>
    

Preparation code output

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
WebSQL
// async test
// Prepare WebSQL.JS database
var wdb = openDatabase('wdb', '0.1', 'Test database', 1000000);
wdb.transaction(function(tx) {
  sqls.forEach(function(sql) {
    tx.executeSql(sql);
  });
  tx.executeSql(query, [], function() {
    deferred.resolve();
  });
});
pending…
Alasql
var adb = new alasql.Database();
sqls.forEach(function(sql) {
  adb.exec(sql);
});
adb.exec(query);
pending…

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