A database management system (DBMS) is a collection of programs that store, modify, and extract information from a database (Smitha, 2006). DBMSs have many different types that run on a personal computer as a small system up to large systems running on mainframes. An example of database function is like flight reservation system, hotel computer system and clinic system. DBMS is also a computer program created to manage the database and implement operations on the data required by the complete consumer. DBMSs are found in most database applications, and DBMSs are sometimes built on private multitasking kernels with built-in network support, although these functions today are left to the operating system. A database application is computer software written to manage data from specific applications. In database management systems, data consists of three layers, namely the physical layer, the concept layer and the user layer. The information requested from the database is created in the form of a stylized question. This happens from a technical point of view and the way in which the DBMS organizes information internally. Database information can be presented in various formats. In most cases, DBMSs include a report writer that allows you to generate data in a report. Furthermore, many DBMSs also include a graphical component that allows you to produce information in the form of graphs and tables. According to Gerald Kowalski (1997), information systems are capable of storing, retrieving and maintaining information. Information in this context may consist of text (including numeric data and data), images, audio, video and other multiple objects. There are three main areas that make up the system information...... middle of the paper...... storage, memory and processing stations, relational databases and spreadsheets using structured data is the only way to manage data effectively. Anything that cannot fit into a narrow structure that must be stored on paper in filing cabinets. Examples of structured data are a database, XML data, and data warehouse. On the other hand, unstructured data (UD) usually refers to information that does not reside in a traditional row-column database. UDs are usually not stored in a relational database or as it is traditionally defined. Where is the data model associated with the meaning of the data. It is the opposite of SD and data stored in a field in the DB. UD files often include text and multimedia content. UD examples include email, word processing documents, videos, images, audio files, presentations, websites, and many other types of assets