Today, I continuing my series of talks on fundamental SQL Server database topics. I am a proud United States Army Reservist (USAR) Veteran. Just like boot camp I went to so long ago, I am going nick name the series BASIC TRAINING. The most basic part of a database is a TABLE which consists of COLUMNS. Many databases are works in progress that never ends since business requirements change as the company ages. With that said, changing the structure of a table is not an uncommon DBA task. We are…
Day: December 23, 2012
Basic Training – All About NULL
Today, I continuing my series of talks on fundamental SQL Server database topics. I am a proud United States Army Reservist (USAR) Veteran. Just like boot camp I went to so long ago, I am going nick name the series BASIC TRAINING. The most basic part of a database is a TABLE which consists of COLUMNS. After choosing the data type for the COLUMN, we need to decide if the value is optional for some of the data rows. If it is, we need to define the column as NULL,…