Tag: EXEC

Using Variables

admin

I am going to talk about Transaction SQL variables. Any stored program that does complex business processing will use one of more of variables to craft an algorithm. During my college days, I had to take a couple physics classes. Newton’s second law states that force is equal to mass times acceleration. The comic strip on the left shows how variables in the fourth picture can be used as place holders in a complex equation. This concept is key for crafting very complex programs. The DECLARE keyword is used in…

Various Triggers – Part 6

admin

Triggers can be used to track Data Manipulation Language (DML) changes that occur in tables. Today, I am going to expand the AUTOS database script to add table auditing. Auditing is a very good practice when multiple people have rights to make changes to important semi-static data. This is not a good solution if the amount of data is large or number of table changes are huge. First, I am going to leverage the newly built schema called Audit Database Tracking (ADT) to seperate data tables from audit tables. A…