All Errors

MySQL ERROR 1366 occurs when data cannot be stored in a column due to character set mismatches, type incompatibility, or invalid values. This commonly happens with UTF-8 special characters in latin1 columns, empty strings in integer columns, or numeric precision issues in strict mode.

Index creation fails due to deadlocks, constraint violations, lock timeouts, or disk space issues. Identify the root cause and drop any invalid indexes before retrying the CREATE INDEX operation.

ERROR 1407 occurs when you provide an invalid SQLSTATE value in a SIGNAL statement within a stored procedure or condition handler. SQLSTATE values must be exactly 5 characters and cannot start with "00" (which indicates success). Use "45000" for user-defined exceptions.

This error occurs when you try to create or update a view with the WITH CHECK OPTION clause, but the view definition makes it non-updatable. Views with aggregate functions, UNION, GROUP BY, or non-mergeable joins cannot use CHECK OPTION.

This error occurs when you attempt to create or alter a MySQL partitioned table with zero partitions. MySQL requires at least one partition for partitioned tables; if you want to remove all partitions, use DROP TABLE instead.

The "NOREPLICAS Not enough good replicas to write" error occurs when a Redis master instance rejects write operations because insufficient replicas are available or synchronized. This is a replication safety feature that prevents data loss.

ERROR 1452 occurs when you try to insert or update a child table row with a foreign key value that doesn't exist in the parent table. Fix it by verifying the parent record exists or by ensuring data types match correctly.

ERROR 1419 occurs when creating or updating triggers and stored functions with binary logging enabled, but your MySQL user lacks the SUPER privilege. This is common in managed databases like AWS RDS where SUPER access is restricted.

This error occurs when you attempt to use a relation (table or view) as a composite type in a context where PostgreSQL expects a stand-alone composite type. It commonly happens when using table rows in function arguments, array constructors, or type conversions without proper syntax.

ERROR 2001 (CR_SOCKET_CREATE_ERROR) occurs when the MySQL client cannot create or access the UNIX socket file used for local connections. This typically happens when the socket file is missing, has incorrect permissions, or the server isn't running.

ERROR 2000 (CR_UNKNOWN_ERROR) is a generic MySQL client error indicating an unknown issue between the client and server. This typically stems from network connectivity problems, version mismatches, or protocol incompatibilities.

MySQL does not support foreign key constraints on partitioned InnoDB tables. You must choose between using partitioning or foreign keys. Remove partitioning or foreign keys, use application-level enforcement, or implement trigger-based validation instead.

ERROR 1411 occurs when you pass an invalid or incorrectly formatted value to a MySQL function, most commonly with date/time functions like STR_TO_DATE(). The error happens when the input format doesn't match the format specifier or when using these functions in stored procedures.

This error occurs when you attempt to create a PostgreSQL role (user account) that already exists in the database. Unlike CREATE TABLE, CREATE ROLE has no IF NOT EXISTS clause, so duplicate attempts fail. There are several solutions using PL/pgSQL blocks or conditional checks.

MySQL ERROR 1449 occurs when a stored procedure, view, trigger, or event references a user account (the definer) that no longer exists in the database. This commonly happens after user deletion, database migration, or importing objects from a different server with different user accounts.

MySQL ERROR 1593 indicates replication failure caused by a corrupted relay log file. The relay log stores replication data from the source server, and corruption typically results from hardware failures or unexpected server shutdowns. Fix by resetting the replica and resyncing from the source.

The "could not create unique index" error during pg_restore occurs when restoring data contains duplicate values that violate unique constraints. Resolve by identifying duplicate data, fixing the source, or using safe restoration techniques.

This error occurs when you attempt to execute partition management operations (ADD PARTITION, DROP PARTITION, REORGANIZE PARTITION) on a table that was not created with partitioning enabled. The fix depends on whether you need to add partitioning to the table or remove the partition statement from your script.

MySQL error 1412 occurs when a transaction tries to access a table whose structure has been modified by another session. This happens due to transaction isolation levels and metadata locking conflicts during concurrent DDL operations.

This error occurs when trying to create a unique index on a table that contains duplicate values in the indexed column(s). PostgreSQL refuses to create the index because existing data violates the uniqueness constraint. Fixing requires finding and removing duplicates before creating the index.