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
Error 1215: Cannot add foreign key constraint
Database Error
Cannot convert ResultSet to List<String> because the underlying database returned a ResultSet with a different column count than expected
Database Error
ORA-01502: index contains duplicate key values starting from row 1
Database Error
Cursor object used after being closed
Runtime Error
java.sql.SQLException: Column 'username' is either not in any table in the FROM clause, or the current statement implementation does not support result set offsets.
Database Error
java.sql.SQLException: Cannot execute query while there is an open result set
Database Error
ORA-04063: view 'HR.EMPLOYEES_V' has a RECURSIVE WITH reference to itself, but no self join is allowed in a RECURSIVE WITH clause
Database Error
ERROR 1217 (42000): Cannot delete or update a parent row: a foreign key constraint fails (`database_name`.`table_name`, CONSTRAINT `fk_table_id` FOREIGN KEY (`id`) REFERENCES `parent_table` (`id`))
Database Error
PDOStatement::execute(): SQLSTATE[HY000] [2002] No such file or directory in /var/www/html/database.php on line 17
Database Error
SQLSTATE[HY000][1049] Unknown database 'my_database' (SQL: select * from users where email = 'user@example.com')
Database Error
SQL Error (1146): Table 'mydb.mycustomer' doesn't exist
Database Error
SQL Error (1146): Table 'mydb.orders' doesn't exist
Database Error