SQL – Comments Table of content A comment is a piece of text that is used in programming languages to provide additional information. These comments are ignored by the compiler and do not affect the program”s functionality. They are not visible in the output after the execution of code. Their purpose is to make the […]

SQL – Injection Table of content If you take a user input through a webpage and insert it into an SQL database, there is a chance that you have left yourself wide open for a security issue known as the SQL Injection. This chapter will teach you how to help prevent this from happening and […]

SQL – Non-Clustered Index Table of content SQL Non-Clustered Indexes The SQL Non-Clustered index is similar to the Clustered index. When defined on a column, it creates a special table which contains the copy of indexed columns along with a pointer that refers to the location of the actual data in the table. However, unlike […]