php – PDO: Unable to create SQLite database in memory-ThrowExceptions

Exception or error:

Trying to learn a bit about PDO and is going through this tutorial. It has the following snippet of code:


    $db = new PDO('sqlite::memory');
    echo "SQLite created in memory.";

catch(PDOException $e)
    echo $e->getMessage();

When I run this I get the following exception message:

SQLSTATE[HY000] [14] unable to open database file

What does that mean? How can I get it to work? I am able to connect to a MySQL database and also a regular SQLite database file. So I know at least something is working…

I’m on Windows 7 64-bit with Apache 2.2.11 and PHP 5.3.0 (latest WampServer install). phpinfo() reports that I have pdo_sqlite with SQLite Library 3.6.15 enabled.

How to solve:

You have to write

$db = new PDO('sqlite::memory:');

the trailing : is missing.

The PDO_SQLITE Data Source Name (DSN) is composed of the following elements:

The DSN prefix is sqlite:.

  • To access a database on disk, append the absolute path to the DSN prefix.

  • To create a database in memory, append :memory: to the DSN prefix.



Not sure @ win permissions, but on *nix, SQLite needs write permision to the dir confining database files for temp files.

Leave a Reply

Your email address will not be published. Required fields are marked *