SQL SERVER

Deadlocks are scary. Suddenly, your application throws this error: Transaction (Process ID 52) was deadlocked on lock resources with another […]

Many developers use transactions…But very few understand how isolation levels affect performance, locking, blocking, and data consistency. If you master

If you are still troubleshooting performance using only execution plans and DMVs, you are working the hard way. Query Store

Security is not just a DBA’s job.If you write stored procedures, manage databases, or deploy code, you are responsible for

When a stored procedure fails, runs slowly, or behaves strangely, guessing is dangerous—especially in production. Professional SQL developers follow safe,

When a query or stored procedure becomes slow in production, panic debugging makes things worse. Professionals follow a structured troubleshooting

If execution plans are the brain of SQL Server, statistics are the eyes. Without accurate statistics, SQL Server makes bad

Many SQL Server issues—blocking, deadlocks, slow queries, and inconsistent data—come down to locks and isolation levels. Most developers use them

Stored procedure recompilation can be both a performance killer and a performance booster—depending on how and why it happens. Many

Temporary tables and table variables look similar, but choosing the wrong one can badly hurt performance. Many developers use them