Database Errors

MySQL, PostgreSQL, SQLite, MSSQL errors and query issues.

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0X00000998

Fix 0X00000998: Can't Add User to Accounts Database

This error means the user accounts database file hit its max size. We'll fix it by clearing old acco...

Intermediate 9 views May 26, 2026
0X000020FB

Fix AD Replication Error 0x000020FB: Inconsistent DIT Database

This error means Active Directory's database has internal corruption. You'll see it during replicati...

Intermediate 8 views May 26, 2026
1452 (23000)

MySQL 'Cannot add or update a child row: a foreign key constraint fails' fix

Foreign key constraint error in MySQL. Straight fix: disable FK checks, fix data, re-enable. Here's ...

Intermediate 18 views May 26, 2026
0X8004E004

CONTEXT_E_NOCONTEXT 0X8004E004: MTS Object Context Missing

This error hits when your COM+ component tries to access MTS context outside a transaction. It's com...

Intermediate 16 views May 26, 2026
0X8004D015

XACT_E_INVALIDCOOKIE (0x8004D015) – Fix the Invalid Transaction Cookie

This error means your transaction cookie is stale or mismatched. It usually shows up in distributed ...

Intermediate 14 views May 26, 2026
0X00001A91

Fix RM_NOT_ACTIVE (0X00001A91) on Windows Server

This error means the Resource Manager service isn't running or is corrupted. You'll see it in SQL Se...

Intermediate 9 views May 26, 2026
0X00000884

0X00000884: Service Database Locked — The Real Fix

That 'service database is locked' error means something else is holding the registry open. Here's ho...

Intermediate 11 views May 26, 2026
0X00001AAC

Fix ERROR_TM_VOLATILE (0X00001AAC) in Windows Transaction Manager

This error hits when the Transaction Manager (KTM) runs into a volatile resource conflict. The fix i...

Intermediate 10 views May 26, 2026
0XC000020F

STATUS_TRANSACTION_ABORTED (0XC000020F) Fix – SQL Server & DTC

SQL Server transaction aborts when DTC or network transport drops the connection mid-commit. Here's ...

Intermediate 11 views May 26, 2026
0X00001A99

Fix ERROR_STREAM_MINIVERSION_NOT_VALID (0x00001A99) on Windows

This error means a file's miniversion is invalidated, often due to a failed VSS snapshot or SMB shar...

Intermediate 14 views May 26, 2026
ORA-12514

Oracle ORA-12514: TNS Listener Does Not Know Service

Oracle's TNS listener can't find the service you're asking for. Usually a simple listener.ora or ser...

Intermediate 16 views May 26, 2026
0X0000085D

Server not configured for transactions error 0X0000085D fix

This error pops up when a client tries to run a transaction against a server that's not set up for i...

Intermediate 14 views May 26, 2026
0X0000171E

Fix 0x0000171E Cluster DB Transaction Error

The cluster database transaction is stuck. Kill the hung transaction or restart the cluster service....

Intermediate 8 views May 26, 2026
0X00001AA0

Fix ERROR_NO_TXF_METADATA (0X00001AA0) on Windows

This error means a file is missing its transaction log metadata. Here's how to fix it fast without d...

Intermediate 9 views May 26, 2026
0XC0190005

STATUS_RM_NOT_ACTIVE 0XC0190005 – Fix It Fast

SQL Server resource manager isn't running. Real fix: restart the service and clear a stuck transacti...

Intermediate 9 views May 26, 2026
0X40190034

STATUS_RECOVERY_NOT_NEEDED (0X40190034) - Transaction Manager Already Consistent

This NT status error means the transaction resource manager is already consistent—no recovery needed...

Intermediate 14 views May 26, 2026
0X00000FA4

0X00000FA4 Backup Fails on SQL Server 2019 – Fix Now

SQL Server full backup fails with error 0X00000FA4 due to disk space or file system corruption. Here...

Intermediate 10 views May 26, 2026
0X0000218D

Fix AD Error 0X0000218D: SPN Derivation Without Server Ref

This error means AD couldn't derive a service principal name because a required server object refere...

Intermediate 8 views May 26, 2026
18456

SQL Server Error 18456 Login Failed for User

SQL Server error 18456 means authentication failed. Usually a password mismatch, disabled account, o...

Intermediate 15 views May 26, 2026
0XC0000407

Fix STATUS_VOLSNAP_PREPARE_HIBERNATE (0xC0000407) Hibernation Error

Hibernation fails with error 0xC0000407. The fix is to disable and re-enable the Volume Shadow Copy ...

Beginner 11 views May 26, 2026
0X0000028F

Fixing ERROR_VOLSNAP_PREPARE_HIBERNATE (0x0000028F)

This error pops up when Windows tries to hibernate but the Volume Snapshot Service (VSS) can't prepa...

Intermediate 12 views May 26, 2026
1045 (28000)

MySQL 1045: Access Denied for 'root'@'localhost'

You're locked out of MySQL with error 1045. The fix is resetting the root password via skip-grant-ta...

Intermediate 9 views May 26, 2026
0X00001AB0

Fix ERROR_TRANSACTIONAL_OPEN_NOT_ALLOWED (0X00001AB0) Fast

This error means you're trying to open a file or object inside a transaction that doesn't support it...

Intermediate 10 views May 26, 2026
0X000002E8

Fix ERROR_RXACT_COMMITTED (0X000002E8) in SQL Server

This error means a transaction already committed but something still references it. Here's how to st...

Intermediate 13 views May 26, 2026