Wait a second!
More handpicked essays just for you.
More handpicked essays just for you.
Database concepts 7th
Database concepts 7th
Database system concepts answer
Don’t take our word for it - see why 10 million students trust us with their essay needs.
The differences between Database management system (DBMS) and information retrieval system by focusing on their functionalities is, DBMS is software that enables computer to perform database functions of storing, retrieving, adding, deleting and modifying data. This means the user or other program easy to understand and know where the data is located on storage media and the space of data. Example of DBMS is Microsoft Access, MySQL, Microsoft SQL Server, Oracle and FileMaker Pro Access, MySQL, Microsoft SQL Server, Oracle and FileMaker Pro. The meaning of information retrieval is a process to collect a relevant resource from collection information resources. Search can be based on metadata. In Information retrieval, we study data structures and algorithms used in the implementation of IR systems. Example of retrieval system is text and number. 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 …show more content…
From the diagram below show how the DBMS working. First stage is database; database is a place for structured set of data held in a computer, especially one that is accessible in various ways. For example is student name, i/c and ID, from the information the lecture can access their profile, result and other. Second stage is database management system which means the place for the data will combine together. Third stage is application program which means the all data have been separate according their functions. As example, the lecture need to know about student result just enter their information and click the result button. The information will appear. Last stage is end user which means the lecturer
As Michel de Montaigne once said, “Marriage is like a cage, one sees the birds outside desperate to get in, and those inside equally desperate to get out”. Sometimes individual’s expectations about supposedly perfect events in life, such as marriage, fail to meet the extraordinary criteria. Though “The Short Happy Life of Francis Macomber” by Ernest Hemingway, “Sweat” by Zora Neale Hurston, and “The Storm” by Kate Chopin take place in different times and locations, they share the common theme of marrying and remaining in a marriage for other reasons than love or passion. “The Short Happy Life of Francis Macomber” is about a tragic hunting trip in Africa, “Sweat” is about an African-American woman who stands up to her husband, and “The Storm” is about a woman who has an affair during the storm. In all three short stories, a weak foundation for marriage leads to infidelity, perhaps even insanity for some of the characters.
The purpose of a data dictionary is to define the objects and data within an organization's database management system. This metadata does not contain any of the database's data, but only information about the structure, storage and use of the database's data. A data dictionary can be stored in files or documents, or can be stored within a database in the DBMS.
Most commonly databases are design to manage and maintain textual and numeric data. But databases can be used to manage many other types of data such as images, videos, songs, etc. These types of databases are called Multimedia Databases. Common databases which use numeric and textual data can be retrieved using simple comparison of text- numerical values. But this method won’t be applicable for Multimedia Databases. Digitized representation of multimedia data cannot retrieve using simple methods and need to have a specific database system.
The information system that will be evaluated in this paper is from Malaysia. This information system is used by one of the government department in Malaysia. The government department involved is Department of Survey and Mapping Malaysia or in Malay Jabatan Ukur dan Pemetaan Malaysia (JUPEM). JUPEM started in 1885 and actually one of the earliest departments in Malaysia where it main purpose is to perform survey and mapping activities within Malaysia and also country international boundaries. The vision of establishment of JUPEM is to make JUPEM an important organization that provide survey and mapping services outstandingly and together with geospatial data management to accomplish the nation’s vision.
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.
Management information systems can be used as a support to managers to provide a competitive advantage. The system must support the goals of the organization. Most organizations are structured along functional lines, and the typical systems are identified as follows:
Information Retrieval (IR) is to represent, retrieve from storage and organise the information. The information should be easily access. User will be more interested with easy access information. Information retrieval process is the skills of searching for documents, for information within documents and for metadata about documents, as well as that of searching relational databases and the World Wide Web. According to (Shing Ping Tucker, 2008), E-commerce is rapidly a growing segment in the internet.
Information Retrieval is simply a field concerned with organizing information. In other terms, IR is emphasizing the range of different materials that need to be searched. Others researcher said that IR is the contrast between the strong structure and typing a database system with the lack of structure in the objects typically searched in IR. The actual process in information retrieval systems is it has to deal with incomplete or under specified information in the form of the queries issued by users. IR uses the techniques of storing and recovering and often disseminating recorded data especially through the use of a computerized system.
1) Basic and to some extent nested SQL queries to fetch data from database tables.
Referential Integrity: States that "Foreign Key can be either a NULL value or should be Primary Key value of other relation.
The Database Management System (DBMS) is software that enables the users to define, create, maintain and control the access to the database. It is a software that interact with the user’s applications programs and it database. Meanwhile, information retrieval system is a system that involved the activity that the systems obtain the information. The obtaining information action need the information from it resources.
A database management system in the main software tool of the database management approach because it controls the creation, maintenance, and use of the database of an organization and its users. The three major functions of a database management system are first to create new database and database application. Second to maintain the quality of the data in an organized database. And last to use the database of an organization to provide the information that its end users need. An example of a database management approach in a banking information system. Note how the savings, checking and installment loan programs use a database management system to share a customer database. Note also that the database management system allows a user to make direct, ad hoc interrogations of the database without using application programs.
On other hand, there is database software. Database software allows users hold vast amounts of data such as student’s address, and ability y to search and sort the data as the user desires. It has comprehensive searching ability which reduce amount of time lost searching for a certain record, in reality it is reduce to matter of seconds. Database software have ability to hand complex amount of data in various forms which are interconnect to each other. In other words, each data about student would be in separate document and master file would compile them all into one...
We identified two main sources to assist in data analyzing which are business intelligence (BI) and data visualization.
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.