Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
branch: master
Fetching contributors…

Cannot retrieve contributors at this time

256 lines (236 sloc) 5.565 kb
<head>
<title>node-sqlite</title>
<style>
pre, code { color: #060; font-size: 11pt; }
pre { margin-left: 2ex; padding: 1ex; background-color: #eee; }
p { font-size: 12pt; }
body {
margin-left: 10%;
margin-right: 10%;
background-color: #fff;
color: black;
max-width: 800px;
}
h1,h2,h3,h4 { font-family: helvetica }
h1 { font-size: 36pt; }
h1 {
background-color: #58b;
color: white;
padding-left:6px;
}
h2 {
color: #28b;
}
</style>
</head>
<body>
<h1>node-sqlite</h1>
<a href=http://sqlite.org/>SQLite</a> bindings for
<a //href=http://nodejs.org/>Node</a>.
<p>
The semantics conform somewhat to those of the <a
href=http://dev.w3.org/html5/webdatabase/#sql>HTML5 Web SQL API</a>,
plus some extensions. Also, only the synchronous API is implemented;
the asynchronous API is a big TODO item.
<h2>Download</h2>
<p>
The spiritual home of node-sqlite is at
<a href=http://grumdrig.github.com/node-sqlite/>
http://grumdrig.github.com/node-sqlite/</a>.
<p>
The code lives at <a href=http://github.com/grumdrig/node-sqlite>
http://github.com/grumdrig/node-sqlite</a>
<style>
pre, code { color: #060; font-size: 11pt; }
pre { margin-left: 2ex; padding: 1ex; background-color: #eee; }
p { font-size: 12pt; }
body {
margin-left: 10%;
margin-right: 10%;
background-color: #fff;
color: black;
max-width: 800px;
}
h1,h2,h3,h4 { font-family: helvetica }
h1 { font-size: 36pt; }
h1 {
background-color: #28b;
color: white;
padding-left:6px;
}
h2 {
color: #28b;
}
</style>
<p>
<h2>Documentation by Example</h2>
<p>
Import the library and open a database. (Only syncronous database
access is implemented at this time.)
<p>
<pre>
var sqlite = require("../sqlite");
var db = sqlite.openDatabaseSync("example.db");
var assert = require("assert").ok;
</pre>
<p>
Perform an SQL query on the database:
<p>
<pre>
db.query("CREATE TABLE foo (a,b,c)");
</pre>
<p>
This is a more convenient form than the HTML5 syntax for the same
thing, but which is also supported:
<p>
<pre>
db.transaction(function(tx) {
tx.executeSql("CREATE TABLE bar (x,y,z)");
});
</pre>
<p>
This allows the same or similar code to work on the client and
server end (modulo browser support of HTML5 Web SQL).
<p>
Transactions generate either a "commit" or "rollback" event.
<p>
<pre>
var rollbacks = 0;
db.addListener("rollback", function () {
++rollbacks;
});
</pre>
<p>
Both forms take an optional second parameter which is values to
bind to fields in the query, as an array:
<p>
<pre>
db.query("INSERT INTO foo (a,b,c) VALUES (?,?,?)", ['apple','banana',22]);
</pre>
<p>
or as a map:
<p>
<pre>
db.query("INSERT INTO bar (x,y,z) VALUES ($x,$y,$zebra)",
{$x: 10, $y:20, $zebra:"stripes"});
</pre>
<p>
Also optional is a callback function which is called with an object
representing the results of the query:
<p>
<pre>
db.query("SELECT x FROM bar", function (records) {
assert(records.length == 1);
assert(records[0].x == 10);
</pre>
<p>
The HTML5 semantics for the record set also work:
<p>
<pre>
assert(records.rows.length == 1);
assert(records.rows.item(0).x == 10);
});
</pre>
<p>
INSERT, UPDATE &amp; DELETE queries set <code>rowsAffected</code> on their result
set object:
<p>
<pre>
db.query("UPDATE foo SET a = ? WHERE a = ?", ['orange', 'apple'], function(r) {
assert(r.rowsAffected == 1);
});
</pre>
<p>
They also emit an <code>"update"</code> event.
<p>
INSERT queries set <code>insertId</code>:
<p>
<pre>
var insert = db.query("INSERT INTO foo VALUES (1,2,3)");
assert(insert.insertId == 2);
</pre>
<p>
Note here that the result set passed to the callback is also
returned by <code>query</code>.
<p>
Multiple-statement queries are supported; each statement's result set is retuned to the callback as a separate parameter:
<p>
<pre>
var q = db.query("UPDATE bar SET z=20; SELECT SUM(z) FROM bar;",
function (update, select) {
assert(update.rowsAffected == 1);
assert(select[0]['SUM(z)'] == 20);
});
</pre>
<p>
An array of all result sets is available as the <code>.all</code> property on
each result set:
<p>
<pre>
assert(q.all[1].length == 1);
</pre>
<p>
HTML5 semantics are supported.
<p>
<pre>
db.transaction(function(tx) {
tx.executeSql("SELECT * FROM foo WHERE c = ?", [3], function(tx,res) {
assert(res.rows.item(0).c == 3);
});
});
</pre>
<p>
The <code>query</code> and <code>transaction</code> APIs wrap lower level APIs that more
thinly wrap the underlying C api:
<p>
<pre>
var stmt = db.prepare("INSERT INTO foo VALUES (?,?,?)");
stmt.bind(1, "curly");
stmt.bind(2, "moe");
stmt.bind(3, "larry");
stmt.step(); // Insert Curly, Moe &amp; Larry
stmt.reset();
stmt.step(); // Insert another row with same stooges
stmt.reset();
stmt.clearBindings();
stmt.bind(2, "lonely");
stmt.step(); // Insert (null, "lonely", null)
stmt.finalize();
</pre>
<p>
Close it:
<p>
<pre>
db.close();
</pre>
<p>
<p>
</pre>
<p>
</pre>
<h2>Installation</h2>
<p>
<ol>
<li>Install <a //href=http://nodejs.org/>Node</a> and
<a href=http://sqlite.org/>SQLite</a>.
<p>
<li>Get the code
<pre>
$ git clone git://github.com/grumdrig/node-sqlite.git
</pre>
<li>Configure and build
<pre>
$ cd node-sqlite
$ node-waf configure
$ node-waf build
</pre>
<li>Test:
<pre>
$ node test.js
$ node doc/examples.js
</pre>
</ol>
<p>
The two files needed to use this library are <code>sqlite.js</code> and
<code>build/default/sqlite3_bindings.node</code>; copy them where you need
them.
Jump to Line
Something went wrong with that request. Please try again.