Troubleshooting

Error 18456 – Login failed for user ‘xxx’

Understand and fix SQL Server Error 18456. See what each State means, how to check the error log in SSMS, and step-by-step solutions for common login failures.
Troubleshooting

Connection error – The target principal name is incorrect

Why SQL Server shows “The target principal name is incorrect” during TLS, how to diagnose certificate name mismatches and trust issues, and the safest fixes.
Blog

What is Quorum in Windows Server Failover Cluster (WSFC)

Learn what Quorum is in Windows Server Failover Cluster (WSFC). Understand how votes, witnesses, and Dynamic Quorum work, and explore configuration methods, scenarios, and best practices.
Blog

How to Enable Row-Level Security (RLS) in SQL Server

Comprehensive guide to Row-Level Security (RLS) in SQL Server. Learn how it works, use cases, filter and block predicates, and step-by-step examples.
Blog

How to Enable Dynamic Data Masking (DDM) in SQL Server

Learn how to use SQL Server Dynamic Data Masking (DDM) to secure sensitive data by controlling visibility at the database level. Step-by-step guide with examples.
Troubleshooting

Error 7391 – The operation could not be performed because OLE DB provider “MSOLEDBSQL” for linked server “xxx” was unable to begin a distributed transaction.

Learn how to resolve SQL Server error 7391 by enabling MSDTC and understanding distributed transactions. This guide explains the two-phase commit process and provides step-by-step fixes.
Blog

How to Enable Always Encrypted with Secure Enclaves in SQL Server

Learn how to enable and use Always Encrypted with Secure Enclaves in SQL Server. This guide covers prerequisites, VBS enclave setup, certificate and key creation, column design, and PowerShell/ODBC testing—highlighting differences from the traditional Always Encrypted approach.
Blog

How to Enable Always Encrypted in SQL Server

1. IntroductionAlways Encrypted is a SQL Server feature that encrypts sensitive data between your application and the da...
Blog

Encrypted Connections in SQL Server

Learn how to secure SQL Server communication using TLS: enable encryption for queries and result sets, validate server certificates, and configure force encryption for safe data transmission.
Blog

How to Enable Transparent Data Encryption (TDE) in SQL Server

Discover how to protect your database files at rest using TDE. This guide covers key creation, certificate setup, enabling encryption, and backup/restore processes for SQL Server.