Database Errors

FATAL: too many connections

PostgreSQL FATAL: too many connections — fix it fast

Your Postgres server hit max_connections and rejects new clients. Here's how to get back in, then st...

Intermediate 👁 6 16h ago

0XC0190028

STATUS_HANDLE_NO_LONGER_VALID: Fix the 0xC0190028 Handle Error

That STATUS_HANDLE_NO_LONGER_VALID (0xC0190028) crash usually means a file handle got closed mid-ope...

Advanced 👁 3 1d ago

WiredTiger error (Operation not permitted)

MongoDB WiredTiger error (Operation not permitted) after crash: 3 fixes

MongoDB won't start after a crash because WiredTiger can't create a lock file. Here's how to fix it ...

Beginner 👁 9 3d ago

FATAL: 53300

PostgreSQL FATAL: sorry, too many clients already — Fix Connection Exhaustion

PostgreSQL FATAL 53300 means max_connections is maxed out. Fix it by raising limits, fixing leaks, a...

Intermediate 👁 7 4d ago

null

Dealing with Database Connection Timeout: Fixes That Work

Database connection timeouts hit when the app can't reach the DB in time. I'll show you why it happe...

Intermediate 👁 11 6d ago

Table './mysql/innodb_table_stats' is marked as crashed

MySQL 8.0.34+ crash after upgrade: fix innodb_table_stats

MySQL 8.0.34+ crashes on restart after an upgrade when the innodb_table_stats table is corrupted. Fi...

Intermediate 👁 11 Sep 7, 2026

0X8004E007

CONTEXT_E_OLDREF 0X8004E007 Fix for COM+ Database

This error pops up when a COM+ app tries to use stale transaction context after a database failover....

Intermediate 👁 17 Sep 7, 2026

0X00000239

Fix Sync Required Error 0X00000239 Step by Step

This error appears when Windows can't sync your files or settings. I'll show you the fastest fixes f...

Beginner 👁 10 Sep 6, 2026

ERROR 1040 (HY000): Too many connections

MySQL Error 1040: Too Many Connections — Real Fix

Too many connections means MySQL hit its connection cap. The real fix is raising max_connections, no...

Intermediate 👁 13 Sep 6, 2026

0X00001A2D

Fix ERROR_TRANSACTION_NOT_ACTIVE 0X00001A2D in Windows

Transaction handle went stale. Close the app or service that's holding it, then try again. Rollback ...

Intermediate 👁 11 Sep 6, 2026

0X00001B8B

Fix ERROR_CTX_SHADOW_DISABLED (0X00001B8B) Remote Control

Remote control fails with 0X00001B8B when shadowing is off in RDS settings or Group Policy. Quick fi...

Intermediate 👁 14 Sep 6, 2026

Error 128

SQL Server 128: Severe Error on Current Command – Real Fixes

SQL Server error 128 (severity 20) kills your query mid-run. Usually a connection or memory issue. H...

Intermediate 👁 14 Sep 5, 2026

connection refused: Is the server running on host "localhost" and accepting TCP/

Postgres connection refused on localhost:5432 — fix it now

Postgres won't connect? Most likely the service isn't running or is bound to the wrong socket. Here'...

Beginner 👁 10 Sep 4, 2026

ORA-01555

Fix ORA-01555: Snapshot Too Old Without Rewriting Your App

The ORA-01555 snapshot too old error hits long-running queries when undo data is overwritten. Here's...

Intermediate 👁 10 Sep 4, 2026

0X80320012

Fix Firebird FWP_E_TIMEOUT 0X80320012 Lock Timeout

Firebird transaction lock timeout on busy tables. Usually a missing index or long transaction holdin...

Intermediate 👁 13 Sep 4, 2026

0XC0000214

Fix STATUS_TRANSACTION_INVALID_ID 0XC0000214 on SQL Server

SQL Server or linked server throws 0XC0000214 when a transaction ID isn't recognized. Usually a stal...

Intermediate 👁 13 Sep 4, 2026

0X000003F6

Fix ERROR_REGISTRY_RECOVERED (0x3F6) on Windows Boot

Windows recovered a damaged registry hive using a backup log. You'll see this after a crash or power...

Intermediate 👁 13 Sep 4, 2026

MySQL Error 1213 (40001)

MySQL 1213 Deadlock: Fix by Making Transactions Short

Got MySQL error 1213? It's a deadlock. You fix it by keeping transactions short, using consistent in...

Intermediate 👁 17 Sep 4, 2026

duplicate key value violates unique constraint

pg_restore duplicate key errors: fix schema restore fails

pg_restore hits duplicate keys when the schema already has data. Drop the target schema first, or re...

Intermediate 👁 18 Sep 3, 2026

0XC019004B

Fix STATUS_FLOATED_SECTION (0XC019004B) Fast

I/O on a floated section object. Usually a TxF or memory-mapped file issue. Close the file handle or...

Intermediate 👁 13 Sep 3, 2026

0X80000018

Fix STATUS_RXACT_COMMIT_NECESSARY 0x80000018 in SQL Server

Error appears when a transaction is left dangling after a failover or client crash. You need to comm...

Intermediate 👁 16 Sep 2, 2026

ERROR 1045 (28000)

Fix MySQL 1045 Access Denied Error in Under 10 Minutes

MySQL error 1045 means bad credentials or a host mismatch. Here's the exact fix, the less obvious va...

Beginner 👁 14 Sep 1, 2026

0X00001AB8

Fix 0X00001AB8: Transaction Freeze Already in Progress

SQL Server throws this when a backup or snapshot hits a lock conflict. Quick fix: kill the blocking ...

Intermediate 👁 11 Sep 1, 2026

0X80092014

CRYPT_E_NOT_IN_REVOCATION_DATABASE: Fix 0x80092014 Now

Seen when Windows can't verify a cert's revocation status. Usually a mismatched CRL or offline OCSP....

Intermediate 👁 15 Aug 30, 2026