PDO Table Not Found

Why This Happens

This error occurs when your SQL query references a table that does not exist in the connected database. Common causes include not running database migrations, connecting to the wrong database, typos in table names, or the table being dropped or renamed.

The Problem

$stmt = $pdo->query('SELECT * FROM user'); // Table is actually named 'users'

The Fix

$stmt = $pdo->query('SELECT * FROM users'); // Correct table name

Step-by-Step Fix

1. 1

   Verify the table name

   Check the exact table name in the error and compare it to your database schema. Look for typos or singular/plural mismatches.

2. 2

   Check the database

   Verify you are connected to the correct database by checking the DSN. Run SHOW TABLES to see available tables.

3. 3

   Run migrations

   If the table should exist, run your database migration tool to create it. Check that the migration was not skipped or failed.