Database Errors

0X000002A6

Fix ERROR_RXACT_COMMIT_NECESSARY (0X000002A6) Fast

This Windows error means a transaction is stuck without commit. The fix is usually ending the proces...

Intermediate 👁 18 Aug 29, 2026

0XC0190053

Fix 0XC0190053 Recovery Name Collision in SQL Server

SQL Server hits this when two databases share the same recovery name. Rename or drop the duplicate t...

Intermediate 👁 21 Aug 29, 2026

0X00001A2E

Fix ERROR_TRANSACTION_REQUEST_NOT_VALID 0X00001A2E in SQL Server

SQL Server throws this when a transaction is used after commit or rollback. Fix by checking @@TRANCO...

Intermediate 👁 15 Aug 28, 2026

0X00001A30

Fix ERROR_TRANSACTION_ALREADY_ABORTED 0X00001A30 on Windows

Kernel transaction aborted before you could commit—usually from a crashed app or bad driver. Restart...

Intermediate 👁 12 Aug 27, 2026

0X8004D009

XACT_E_NOASYNC (0x8004D009): Fixes That Actually Work

XACT_E_NOASYNC means your app tried an async transaction call the MSDTC doesn't support. Here's the ...

Intermediate 👁 19 Aug 25, 2026

code 13

Fix MongoDB code 13: not authorized on admin to execute command

MongoDB throws code 13 when you try db.createUser without the right auth. Fix it by logging into adm...

Intermediate 👁 13 Aug 23, 2026

MySQL Error 1146

MySQL 8.0 Startup Fail: Table 'mysql.plugin' Missing? Fix It

After upgrading to MySQL 8.0, the server won't start because the data dictionary is out of sync. Her...

Intermediate 👁 21 Aug 21, 2026

could not open file for writing: Permission denied

Fix PostgreSQL VACUUM FULL Permission Denied Error

VACUUM FULL fails with permission denied because PostgreSQL can't write new table files. Usually a d...

Intermediate 👁 28 Aug 20, 2026

0X8004D01B

XACT_E_TMNOTAVAILABLE Fix: Transaction Manager Not Available

XACT_E_TMNOTAVAILABLE means Windows can't reach the MSDTC service. Usually a firewall rule or servic...

Intermediate 👁 18 Aug 20, 2026

0X00001AB6

Fix Cannot Execute File in Transaction 0x1ab6

A database error limiting file writes inside transactions. Wrap them properly or avoid DDL in transa...

Intermediate 👁 19 Aug 20, 2026

ERROR 1055 (42000)

Fix MySQL 1055: only_full_group_by error in 8.0

MySQL 8.0 rejects SELECTs with non-aggregated columns not in GROUP BY. Fix it by adjusting sql_mode,...

Intermediate 👁 19 Aug 19, 2026

SQLITE_FULL

Fix 'database or disk is full' in SQLite with WAL mode

SQLite throws SQLITE_FULL when disk space runs out, but WAL mode can also trip it on the wrong journ...

Intermediate 👁 48 Aug 19, 2026

1040

MySQL ERROR 1040: Too many connections — fix order that works

MySQL throws 1040 when every connection slot is used. Start by killing idle sessions, then bump max_...

Intermediate 👁 29 Aug 19, 2026

ORA-08177

ORA-08177: Why You're Seeing It and the Fix That Works

ORA-08177 pops up when two transactions try to edit the same rows at once. You'll need to retry or c...

Intermediate 👁 28 Aug 18, 2026

ERROR 1205 (HY000)

MySQL Error 1205: Lock Wait Timeout — 3 Fixes That Work

MySQL throws 1205 when a transaction waits too long for a row lock. Start with the quick retry fix, ...

Intermediate 👁 23 Aug 18, 2026

ERROR 1040 (HY000)

MySQL ERROR 1040 Too many connections — Fix max_connections now

MySQL refuses new connections when you hit the max_connections limit. First raise the limit and then...

Intermediate 👁 17 Aug 18, 2026

23505

Fix Postgres duplicate key pg_type_typname_nsp_index (23505)

Getting 'duplicate key value violates unique constraint pg_type_typname_nsp_index'? Usually it's a b...

Intermediate 👁 29 Aug 16, 2026

0X8004D01A

XACT_E_LOGFULL (0x8004D01A): Log Full in MSDTC

MSDTC log fills up from uncommitted or long-running distributed transactions. Truncate the log, then...

Intermediate 👁 18 Aug 16, 2026

SQLITE_BUSY

Fix SQLite Database Is Locked (SQLITE_BUSY) When Multiple Writers Collide

SQLite throws SQLITE_BUSY when two processes write at once. Start with a timeout, then WAL mode, the...

Intermediate 👁 60 Aug 16, 2026

ER_PUBLIC_KEY_RETRIEVAL_NOT_ALLOWED

MySQL 8.0 public key retrieval is not allowed — the real fix

This error appears when connecting to MySQL 8.0 over non-SSL with a password. The fix: add allowPubl...

Intermediate 👁 15 Aug 16, 2026

0X0000054E

Fix ERROR_INTERNAL_DB_CORRUPTION 0X0000054E: Step-by-Step

Tired of that Windows error? Here's the direct fix—repair the database with chkdsk and DISM, then re...

Intermediate 👁 25 Aug 15, 2026

0XC0190037

Fix STATUS_CANT_BREAK_TRANSACTIONAL_DEPENDENCY (0XC0190037)

SQL Server throws 0XC0190037 when a session tries to break a transactional dependency, often from bo...

Intermediate 👁 13 Aug 14, 2026

0X0004D002

Fix XACT_S_READONLY 0x4D002: Read-Only Transaction Error

XACT_S_READONLY means your transaction tried to write but the database or session is read-only. Star...

Intermediate 👁 23 Aug 13, 2026

ORA-00600

ORA-00600 [4194] Fix: Undo Recovery Without Losing Data

Oracle's ORA-00600 [4194] is an internal error during undo recovery. Here's how to fix it by clearin...

Advanced 👁 30 Aug 12, 2026