SQL Padawan

Difference between Lock and Latch

Locks everywhere is a good start to understand how SQL Server provides logical consistency. Every operation has a lock and

Amazon has a Powershell module to manage the the principal services available. I’ve been working with EC2, RDS and S3

SQL Server retrieves threads from Windows. The SQL Server configuration setting max worker threads (set at instance level) determines how

SQL Server stores data in heaps or b-tree structures. Heaps are unordered set and balanced trees are ordered by their

The first post about waits on SQL Server was regarding what SQL Server Wait means, a brief explanation and the

In this post I’m going to talk about locks on SQL Server. Locks are necessary, they are used in all

I was talking with a friend about how a database works and she asked me to explain transaction isolation levels

In a previous post I talked about transaction log works, and what about using a memory-optimized table? SQL Server has

Checkpoints flush dirty data pages from the buffer cache of the current database to disk. This minimizes the active portion

To see how many VLFs you have solely look at the number of rows returned by DBCC LOGINFO. The size