All Errors

MySQL ERROR 1183 occurs when InnoDB fails during a checkpoint operation, which flushes modified data from memory to disk. This critical error usually indicates disk I/O problems, insufficient disk space, file system issues, or hardware failures. Resolve it by checking disk health, freeing space, restarting MySQL, and investigating the error log for the underlying cause.

ERROR 1210 occurs when a MySQL function, stored procedure, or prepared statement receives arguments that do not match the function definition in type, count, or format. This commonly happens with prepared statements using LIMIT clauses, UNSIGNED parameters with IFNULL, or DATA DIRECTORY options.

MySQL error 1202 stops replication when the system cannot create slave threads. This typically indicates insufficient memory, thread limits, or other resource constraints. Resolve by checking system resources, adjusting ulimit settings, or restarting the replication process.

MySQL Error 1203 occurs when a user account exceeds its max_user_connections limit. Fix it by increasing the connection limit, optimizing your application code, or closing idle connections.

ERROR 1150 occurs when a DELAYED insert thread cannot acquire the lock it needs to write to a table, often due to conflicting LOCK TABLES or FLUSH statements. This error is rare in modern MySQL (5.7+) since INSERT DELAYED has been deprecated and removed; if you encounter it, switch to regular INSERT statements or batch inserts.

MySQL ERROR 1071 occurs when you create an index that exceeds the maximum allowed key length. This commonly happens with UTF-8 or UTF-8MB4 character sets when indexing VARCHAR columns, or when combining multiple columns in a composite index. The fix depends on your MySQL version and storage engine configuration.

In Redis Cluster mode, a multi-key command is being executed while slot migration/rehashing is in progress. The command cannot be executed because the keys are split between the source and destination nodes. This error instructs the client to retry the operation after the resharding completes.

PostgreSQL automatically closes idle sessions based on the idle_session_timeout parameter, typically set for interactive users. This error occurs when a session has been idle (not running queries) for longer than the configured timeout duration.

This error occurs when attempting to create a FULLTEXT index on a table with an incompatible storage engine. MySQL requires InnoDB (5.6+) or MyISAM to support FULLTEXT indexes. The fix depends on your MySQL version and application requirements.

This error occurs when you try to use a collation that is incompatible with the specified character set. MySQL requires that each collation belongs to exactly one character set. Fix it by ensuring your character set and collation are compatible and consistent across your database.

MySQL prevents creating stored procedures, functions, or triggers from within another stored routine. This error commonly occurs when using GUI tools like Navicat with incomplete syntax or when attempting recursive routine creation.

System catalog reindexing is restricted in PostgreSQL. This error occurs when attempting concurrent reindexing of system catalogs or when system indexes become corrupted. Recovery requires specific techniques depending on the severity of corruption.

MySQL 8.0+ does not allow creating users implicitly through GRANT statements. You must create the user first with CREATE USER, then grant privileges separately.

ERROR 1215 occurs when MySQL cannot create a foreign key constraint due to mismatched data types, missing indexes, or storage engine issues. The fix involves verifying data types match exactly, ensuring the referenced column has an index, and confirming both tables use InnoDB.

This error occurs when you attempt to create a database with CREATE DATABASE but a database with that name already exists. PostgreSQL does not support the IF NOT EXISTS clause for databases, so you must either drop the existing database, use a workaround query, or choose a different database name.

This error occurs when PostgreSQL encounters a reference to an object (table, schema, column, function, index, or view) that doesn't exist or cannot be found in the current context. Common causes include case sensitivity issues with quoted identifiers, typos in object names, wrong schema references, or objects that have been dropped or renamed.

Error 1302 occurs when a stored procedure or function has duplicate variable declarations or a local variable conflicts with a parameter name. Rename one of the conflicting identifiers to resolve the issue.

MySQL ERROR 1292 occurs when inserting or updating datetime values in an incorrect format. MySQL expects DATETIME columns in YYYY-MM-DD HH:MM:SS format. Use STR_TO_DATE() to convert misformatted dates or verify your date values match MySQL's strict requirements.

The SQLITE_READONLY_CANTLOCK error occurs when SQLite cannot obtain a read lock on a WAL (Write-Ahead Logging) mode database because the shared-memory file is read-only. This typically happens when file permissions prevent SQLite from accessing or modifying the .db-shm file needed for WAL coordination.

This error occurs when MySQL query results or packets exceed the configured max_allowed_packet limit. Fixing it requires increasing the max_allowed_packet setting on both the client and server, or optimizing queries to produce smaller result sets.