A primary key cannot allow null and can only be created once in a table. A unique key allows null and can be created multiple times in a table. The keys play an important part when it comes to storing and...

DELETE is a command that allows the programmer to delete a single row from a table in a SQL database. The command falls under the DML or rather Data Manipulation Language. The TRUNCATE command allows the...

The simplest answer is that they are both the same; there is no real difference between the two. The reason for two different spellings is that American English uses ‘program’, whereas UK English generally...

A database is any collection of data. The data in a database is usually organized in such as manner that the information is easily and readily accessible. A schema is basically a formal description of how a...

Google Analytics is statistical service that allows users to generate and monitor webpage statistics, whereas, Google Webmaster Tools are tools that are available for webmasters that can be used to optimize...