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Database Error Errors

103 errors documented across all languages

Browse all Database Error errors with detailed explanations, root causes, and step-by-step fixes. Each error includes code examples to help you resolve the issue quickly.

103 errors found

PHPGuide

SQLSTATE[HY000] [2002] Connection refused PDO connection attempt failed to 'localhost' at /var/www/html/application.php on line 17

Database Error

Jun 4, 2026View fix
PYTHONGuide

sqlite3.Error: table 'orders' already exists

Database Error

Jun 17, 2026View fix
PHPGuide

SQLSTATE[HY000] [1040] Too many connections

Database Error

May 19, 2026View fix
JAVAGuide

The query parameter 'email' is not found in the named parameter statement: 'SELECT * FROM users WHERE email = :email'

Database Error

May 15, 2026View fix
SQLGuide

SQLSTATE[HY000][1043] Unknown database 'my_database'

Database Error

May 16, 2026View fix
SQLGuide

SQL Error (1222): The following SQL statement failed to execute: 'ALTER TABLE orders DROP COLUMN total_price'. The table does not have a column named 'total_price'.

Database Error

May 23, 2026View fix
PYTHONGuide

OperationalError: no such table: customers - The database table 'customers' does not exist

Database Error

May 11, 2026View fix
SQLGuide

SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known

Database Error

Jun 7, 2026View fix
JAVASCRIPTGuide

MongoDB driver assertion error: TypeError: Cannot read properties of undefined (reading 'replace')

Database Error

May 18, 2026View fix
JAVASCRIPTGuide

MongoError: failed to connect to server [localhost:27017] on first connect with error network error Socket timeout after 30000ms timeout

Database Error

May 17, 2026View fix
SQLGuide

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

Database Error

May 22, 2026View fix
PHPGuide

SQLSTATE[HY000] [2002] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

Database Error

May 22, 2026View fix

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