In this article we are going to see how index pages are organized with data pages and how to read different levels and types of indexes with simple example

To start with, let’s create a simple table in test database named LearningInternals.

CREATE TABLE tExample6(

intEmployeeId int IDENTITY(1001 Read more

In this article, I thought of explaining different types and levels of index pages. but while start preparing for that, I realise , newbies need to understand concepts on Index architecture before moving on to see what is there inside index pages.

So, before going see internals of Clustered and NonClustered index pages, lets quickly recap some… Read more

I like to share 4 updates before moving on to this section:

1. I 've updated my profile to know more about me and purpose of this blog.
2. I 've republished this part with some updates after getting comments from Seniors. 
    You may notice that I 've removed detailed explaination of… Read more

 In this article I have explained below topics
1. key points on HEAP tables.
2. What happens when a table is created.
3. How to list IAM, data pages allocated to a heap table.

As all data, index and system pages stores data in hexadecimal format, knowledge of Hexadecimal to decimal conversion… Read more

Before moving on to see anatomy of different types of pages, lets spend some time to understand

The relationship among sys.objects, sys.partitions, sys.allocation_units and sys.system_internals_allocation_units system views.

Case 1 (simple table with record size less than 8000 bytes and no… Read more

 While learning query tuning topics, I got a chance to understand anatomy of data page and different types and levels of Index pages.

This learning helped me to understand concepts better and to give better performance tuning solutions later.

This is my attempt to share my learning with beginners… Read more

I know, We cant cover life span of query in short.  here is my another try to list some high level information to those who are new to SQL Server community.

1. SQL Server Network Interface (SNI) a protocol layer on Client establish connection to Server SNI using Network protocol such as… Read more