Currency Indicators The network’s Data Manipulation Language (DML) restores as well as updates by moving or searching database records. Therefore, it is important to keep an eye on the search. Currency indicators allow an individual to keep track of the records that an individual has accessed last as well as find set occurrences in the DATABASE MANAGEMENT SYSTEM (DBMS). They...

Representation of M : N Relationships by Sets The set type represents a 1 : N (one : many) relationship among two (2) types of records, which indicates that a record of the member record type can be displayed in a single specified set instance. The DATABASE MANAGEMENT SYSTEM (DBMS) automatically applies this restriction in the network model. To represent...

Introduction This article delivers an overview of the network data model as well as the hierarchical data model. The network model as well as the original language were presented in the report of the CONFERENCE/COMMITTEE ON DATA SYSTEMS LANGUAGES (CODASYL) database work group of 1971. That is why it is sometimes called the DBTG model. The revised reports of 1978...

Functions of Data Mining Data mining classifies facts or suggests conclusions based on the selection of data to discover patterns or anomalies. Data mining have five key functions: Classification: It defines the characteristics that describe a particular group for example, students who have failed in a particular subject. Clustering – It identifies sets of items that share a specific feature....

THE ETL (EXTRACT TRANSFORMATION LOAD) PROCESS This section explains the 4 main processes of the data warehouse. They are extract (data from operating systems as well as transferred to the data warehouse), transform (data in internal format as well as organization of the data warehouse) as well as cleanse (to ensure quality of use sufficient for decision making) as well...

Benefits of Data Warehousing Includes the use of the data warehouse, Find the right information Presentation of information. Hypothesis test Information discovery Transmit the analysis Tangible benefits (quantified / measurable) it includes: Improved product inventory. Lower production costs. Improved selection of target markets. Improved management of assets as well as liabilities. Intangible benefits (difficult to quantify) it includes: Increase productivity...

Administration and Management of Data Warehouse The data warehouse management includes: Security as well as precedence management. Screening updates from multiple sources Checking data quality. Manage as well as updating the metadata. Reviewing as well as report on the use of the data warehouse as well as its status. Data cleaning Replication, sub-configuration as well as distribution of data. Backup...

Distributed Vs Parallel Database: The parallel database system attempts to enhance performance by parallelizing multiple operations, such as loading data, creating indexes, as well as evaluating queries. Although the data of such a system can be warehoused in a distributed manner, the distribution is strictly performance-based. In the distributed database system, data is physically kept in multiple locations, as well...

Architecture of Distributed Database A distributed database system permits systems to access data from local as well as remote databases. In a homogeneous distributed database system, every single database is an Oracle database. In a heterogeneous distributed database system, at least a single databases is not an Oracle database. Distributed databases make use of a client / server architecture to...

Object Relational Database Management System (ORDBMS) Relational Database Management System (DBMS) is currently the leading database technology. Object Oriented Database Management System (OODBMS) has also become the preferred system for financial as well as telecommunications systems. Although the Object Oriented Database Management System (OODBMS) market remains the same. The Object Oriented Database Management System (OODBMS) continues to find new uses,...