alasql
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AlaSQL.js - JavaScript SQL database library for relational and graph data manipulation with support of localStorage, IndexedDB, and Excel
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HTML
<html>
<head>
<title>alasql.js - learn count(*)</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<script src="../../alasql.js"></script>
<script src="../../lib/sqljs/sql.js"></script>
<h1>alasql.js - Performance Tests vs sql.js and WebSQL</h1>
<h3>Results</h3>
<p><div id="result"></div></p>
<script>
var NUM_TESTS = 10;
var sql1 = [
'CREATE TABLE test (a INT, b INT)',
'INSERT INTO test VALUES (1,2)',
'INSERT INTO test VALUES (1,2)',
'INSERT INTO test VALUES (1,2)',
'INSERT INTO test VALUES (2,3)',
'INSERT INTO test VALUES (2,3)',
'INSERT INTO test VALUES (3,4)',
'INSERT INTO test VALUES (NULL,4)',
];
var db = new SQL.Database();
sql1.forEach(function(sql) {
var res = db.exec(sql);
// console.log(res);
});
var sql = 'SELECT AVG(a),SUM(a),SUM(a) FROM test'
var res = db.exec(sql);
console.table(res[0].columns);
console.table(res[0].values);
</script>
</body>
</html>