The simplest form of encryption is symmetric key encryption. This kind of encryption is also called private key encryption. With symmetric-key encryption, a single secret key can both lock the information and unlock the information.Symmetric key encryption is mainly interesting in two situations −Private encryption of data − The user ... Read More

The directory server is a type of data warehouse of resources accessible on the related network. Resources such as database devices, individual databases, file repositories, transaction systems, file storage areas, printers, and people.The people descriptions include names and addresses, organization roles, e-mail addresses, and more. The directory server reveals selected ... Read More

The size of the desktop machine is based on the characteristics of the user and the related tool requirements. A casual user whose data required are met by HTML document through a Web browser needs only as much power as it takes to run the internet browser.On the other hand, ... Read More

There are three basic parallel processing hardware architectures in the server market such as symmetric multiprocessing (SMP), massively parallel processing (MPP), and non-uniform memory architecture (NUMA).Symmetric Multiprocessing (SMP)The SMP architecture is an individual device with multiple processors, all managed by one operating system and all accessing the similar disk and ... Read More

There are various categories for hardware and operating system platforms which are as follows −Mainframes − The data warehouse is probably the one application to which this does not apply. Especially, the mainframe is not the first-choice platform for data warehousing.There are some successful mainframe-based data warehouses, most of them ... Read More

There are the following requirements for the server platform are as follows −Volatility − Volatility computes the dynamic characteristics of the database. It includes areas like how often the database will be updated, how much data changes or is replaced each time, and how long the load window is. Daily ... Read More

There are various features of Query Formulation which are as follows −Multipass SQL − It can be used to evaluate comparisons or to correctly compute nonadditive measures in report break rows, the query tool should divide the report down into multiple queries that are processed independently by the DBMS.The query ... Read More

Standard reporting provides the ability to create production style fixed-format reports that have limited user interaction, a broad audience, and regular execution schedules. The application templates are essentially a casual kind of standard report.At the formal end of the spectrum, large standard reporting systems tend to surface when the ERP ... Read More

Query management services are the set of possibilities that handle the exchange between the query production, the implementation of the query on the database, and the return of the result set to the desktop. These services have a full impact on customer cooperation with the database.There are various services of ... Read More

There are various services of Job Control which are as follows −Job definition − The first step in creating an operations process is to have some way to define a series of steps as a job and to specify some relationship among jobs. This is where the structure of the ... Read More