SQLWarningDatabase ErrorMay 22, 2026

Database Error

SQLSTATE[HY000][1049] Unknown database 'my_database_name'

What This Error Means

This error occurs when the database name provided in the SQL query is unknown or does not exist in the MySQL server's database list.

Why It Happens

This error typically happens when the database name is misspelled, or when the database does not exist due to a recent creation failure or deletion.

How to Fix It

  1. 1To fix this error, ensure that the database name is spelled correctly and exists in the MySQL server's database list. You can create the database using the following SQL query: `CREATE DATABASE my_database_name;`. Alternatively, you can use the correct database name in your SQL query.

Example Code Solution

❌ Before (problematic code)
SQL
SELECT * FROM my_database_name.my_table_name;
✅ After (fixed code)
SQL
USE my_database_name;
SELECT * FROM my_table_name;

Fix for SQLSTATE[HY000][1049] Unknown database 'my_database_name'

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