What business functions do they support? How do they improve operational efficiency and decision making? Email, messaging, social networking, and salesforce management are described in this case study.
What factors will influence how you design the database? Student answers will vary, but should include some assessment of data quality, business processes and user needs, and relationship to existing IT systems.
Key points to include are: Data accuracy when the new data is input, establishing a good data model, determining which data is important and anticipating what the possible uses for the data will be, beyond looking up contract information, technical difficulties linking this system to existing systems, new business processes for data input and handling, and contracts management, determining how end users will use the data, making data definitions consistent with other databases, what methods to use to cleanse the data.
A DBMS includes capabilities and tools for organizing, managing, and accessing the data in the database.
Its most important capabilities and tools are data definition, data dictionary, and data manipulation language. The data definition capability enables a user to be able to specify the structure of the content of the database.
This capability is used to create database tables and to define the characteristics of the fields in each table. The data dictionary is used to store definitions of data elements and their characteristics in the database.
In large corporate databases, the data dictionary may capture additional information, such as usage; ownership; authorization; security; and the individuals, business functions, programs, and reports that use each data element.
A data manipulation language, such as SQL, that is used to add, change, delete, and retrieve the data in the database.
This language contains commands that permit end users and programming specialists to extract data from the database to satisfy information requests and develop applications.
The select operation creates a subset consisting of all records rows in the table that meets stated criteria. The join operation combines relational tables to provide the user with more information than is available in individual tables. The project operation creates a subset consisting of columns in a table, permitting the user to create new tables that contain only the information required.
A datasets with fewer than a billion records.
B datasets with unstructured data. C machine-generated data i. D data created by social media i. E data from Web traffic. What are the principal tools and technologies for accessing information from databases to improve business performance and decision making?Chapter 5 Foundations of Business Intelligence: Database and Information Management Student Learning Objectives 1.
How does a relational database organize data, and how does it differ from an object-oriented database?
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Chapter 5 Foundations of Business Intelligence: Database and Information Management Student Learning Objectives 1. How does a relational database organize data, and how does it differ from an object-oriented database?