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1. Differentiate between database management system and information retrieval system by focusing on their functionalities.
2. Highlight the differences between data and information.
3. Make appropriate use of diagrams to illustrate the underlying concepts/components of database management system and information retrieval system.
4. Differentiate between structured and non-structured data. Give examples for each.
5. Reference
Question 1
Database Management System (DBMS) is a program that use by one or more computer users for create and access data to in a database or a set of software tools that control access, organize, store up, handle, retrieve and to maintain data in a database. In practical use, the terms database has a database server, database system, data server, and database management systems are often used interchangeably.
Many several functions that a DBMS performs to make a guarantee the data integrity and consistency of data in the database. The ten functions has in the DBMS such as data dictionary management, data storage management, data conversion and presentation, safety management, multi-user access control, backup and revival management, data integrity management, database access languages and application programming interfaces, database communication interfaces, and transaction management.
Firstly, the function of DBMS is an update, storage of data and retrieve data. Whereas the data should be always bring up to date includes adding new records, changing and too deleting exist records. This certain function is used for the storage of data and any related data entry forms or screen definitions, report definitions, data validation rules, procedural...
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... The rules of unstructured systems are fewer and less complex.
From the beginning, the world of structured systems and unstructured systems has grown separately and yet in a parallel. Therefore, it is no surprise that each environment is a separate and apart from the other in ways such as a technical, an organizational, a structural, and a functional.
See the possibilities, if the two worlds were able to be connected in an effective and meaningful way. Visualize the new types of systems that could be built and the development to existing systems. However, see the amazing benefits to be gained if the technical, organizational, structural and useful barriers were to the disappear.
Works Cited
• Database Management Concepts By Joseph J. Adamski, Philip J. Pratt, 2003
• Fundamental of Database Systems 6th Edition by Ramez Elmasri and Shamkant B. Navathe, 2010
The relational model consist of a relational structure, a set of integrity rules, and data manipulation operations. The relational structure is based on the representation of data in the form of tables. A table contains rows and columns, with each row representing an individual record, and each column representing a field for each record. Tables are related via indirect indexes of primary and foreign keys. The operations that are performed on these tables in order to store, manipulate and access this data include union, intersection, join, division, restriction, projection, assignment, difference, and product.
Databases always used to fascinate me from my under graduation with great curiosity to know how large data is managed and queried. This led me to do Masters in computer science concentrating in the field of Data Management. In the course of my study, I understood the concepts of DBMS which provides a robust and efficient way of managing and mining data. Through the courses like Database Systems (ITCS 6160), Knowledge Discovery in Databases(ITCS 6162) and Knowledge Based Systems(ITCS 6155) I gained enough theoretical and practical knowledge about the importance of proper organization of data, good techniques to build an efficient database management system and how well the data can be managed.
This paper will compare and contrast five different database management systems on six criteria. The database management systems (DBMS) that will be discussed are SQL Server 2000, Access, MySQL, DB2, and Oracle. The criteria that will be compared are the systems’ functionality, the requirements that must be met to run the DBMS, the expansion capabilities – if it is able to expand to handle more data over time, the types of companies that typically use each one, the normal usage of the DBMS, and the costs associated with implementing the DBMS.
Data warehousing is a difficult system and has to have the capability deliver quality data. An operational database is one which is used by organizations to run its day to day database activities. They are designed to handle rapid transaction processes with systematically updates. Velocity is important to operational databases. They are most commonly operated by office staff, and are on the order of megabytes of data to gigabytes. Database consistency checks and constraints are rigidly enforced. They contain the latest technology necessary to operate organizational functions.
For this coursework two kinds of data models can be used. The object oriented data model, Object Oriented Database Management System(OODBMS), or the relational data model, Relational Database Management System(RDBMS). The differences between these two models and the data model to be used are described in this chapter.
A database is a collection of data which is organized and easy for users to find data. Database can record massive amount of data, it can be use for business and organization’s purpose. Every organization should have database security to secure the information of the organization.
Data is very important and to keep it secure is more important, DBA has to make sure that database has enough security, they need to keep track of all database access activity and denied permission to unauthorized users. This also involves creation of new User roles, application role and maintenance of these roles.
Normalization, Integrity and Security are the important role for a DBA, Normalization helps to avoid data redundancy by reviewing data base structure at certain level. It helps to build an effective data model. Data Integrity provide some level of assurance over the information getting store and retrieved from database, DBA has to understand all DBMS features use them correctly for Data Integrity. Data Security is toughest part for DBA, auditing and multiple level security can protect data but none of them provide complete security, security can also be managed by encrypting and masking the organization data.
A database is an ordered collection of data that usually can be accessed through many different ways. A databases most important function is retrieving information. But Databases also have many other functions pertaining to information, including being able to sort, store, and locate information. The easier a database can access information the more effective the database is. Most of todays complex databases are found on a computer.
A database management system, or DBMS, gives the user access to their data and helps them transform the data into information. Such database management systems include dBase, Paradox, IMS, and Oracle. These systems allow users to create, update, and extract information from their databases. Compared to a manual filing system, the biggest advantages to a computerized database system are speed, accuracy, and accessibility.
According to Modern Database Management eight edition, by Jeffrey A. Hoffer, Mary B. Prescott and Fred R. McFadden database management system (DBMS) is define as a software system that is used to create, maintain, and provide controlled access to user databases.
The second different between DBMS and retrieval data is, database management system functions as a data dictionary management which means the place for DBMS to store the definition of data and their relations (metadata). DBMS use this function to
Databases are becoming as common in the workplace as the stapler. Businesses use databases to keep track of payroll, vacations, inventory, and a multitude of other taske of which are to vast to mention here. Basically businesses use databases anytime a large amount of data must be stored in such a manor that it can easily be searched, categorized and recalled in different means that can be easily read and understood by the end user. Databases are used extensively where I work. In fact, since Hyperion Solutions is a database and financial intelligence software developing company we produce one. To keep the material within scope I shall narrow the use of databases down to what we use just in the Orlando office of Hyperion Solutions alone.
In our world, people rely heavily on the power of technology every day. Kids are learning how to operate an iPad before they can even say their first word. School assignments have become virtual, making it possible to do anywhere in the world. We can receive information from across the world in less than a second with the touch of a button. Technology is a big part of our lives, and without it life just becomes a lot harder. Just like our phones have such an importance to us in our daily lives, database management systems are the same for businesses. Without this important software, it would be almost impossible for companies to complete simple daily tasks with such ease.
The DBMS has a function that can be differentiate from the information retrieval system. The DBMS have the ability to store, update and retrieve the data. This is the main function of the DBMS because the database can be used if there is any record is being stored into the database. The record need to be retrieve first, then it can be change by the database administrator as it will be the record has been updated. The DBMS will protect the structure of the data structure.