relating schemas ? a) DML(Data Manipulation Langauge) b) DDL(Data Definition Langauge) c) Probe d) Relational Schema Answer:b 2. Which one of the following delivers the capability to query material from the database and to insert tuples into, delete tuples from, and modify tuples in the database ? a) DML(Data Manipulation Langauge) b) DDL(Data Definition Langauge) c) Probe d) Relational Schema Answer:a 3. What command is used to create a table? a) DML b) DDL c) View d) Integrity constraint Answer:b
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Definitions.” Database Programming & Design 2 (8) (1989): 36–39. Booch, G. Object-Oriented Analysis and Design with Applications. 2d ed. Redwood City, CA: Benjamin Cummings, 1994. Bruce, T. A. Designing Quality Databases with IDEF1X Information Models. New York: Dorset House, 1992. Chen, P. P-S. “The Entity-Relationship Model—Toward a Unified View of Data.” ACM Transactions on Database Systems 1 (March 1976): 9–36. Codd, E. F. “A Relational Model of Data for Large Relational Databases.” Communications
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of business intelligence, which also encompasses relational database report writing and data mining.[2] Typical applications of OLAP include business reporting for sales, marketing, management reporting, business process management (BPM),[3] budgeting and forecasting, financial reporting and similar areas, with new applications coming up, such as agriculture.[4] The term OLAP was created as a slight modification of the traditional database term OLTP (Online Transaction Processing).[5] OLAP tools
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needs in an effective and efficient manner. Data warehousing, online transactional databases, and data mining can solve or reduce difficulties associated with managing data. Solving Data Management Difficulties The concept of data warehousing is to create a central location and permanent storage space for the various data sources needed to support a company’s analysis and reporting. In other words, it is a database that focuses on query and analysis rather than actual transaction processing (Reeves
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HANDS-ON DATABASE AN INTRODUCTION TO DATABASE DESIGN AND DEVELOPMENT Steve Conger Seattle Central Community College Prentice Hall Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Editorial Director: Sally Yagan Editor in Chief: Eric Svendsen Executive Editor: Bob Horan Product Development Manager: Ashley Santora
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Sent, 02/17/2015 8:00 AM From: Perry Seibles To: Jason Smith Cc: Madison Akers Subject: Object Relation vs Standard Relational Systems Hello Jason, this email is in regards to your information request on object relational and standard relational systems. First, to better understand either of these systems one must understand how the data models have evolved and how they have become an important part of everyday business. There will always be a need to improve the way data is managed. Since
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Give an explanation as to why M:N relationships are not valid in a relational database: Many-to-many relationships are not valid in a relational database because they result in records having multiple values in one cell (field). For example, in a many to many relationship, one sales number may return 10 inventory numbers in one cell. This causes a database to become extremely complex and confusing. It is much easier to understand a relationship when each record has only 1 unique value in each
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View Community Hospital 1. Mountain View Community Hospital (MVCH) wants to provide better services than their current deliverables. Therefore, databases can help MVCH reach their goal through making relational applications provide information about clients or patients without having a book or paperwork to search for every time. A centralized database application that is not a conjunction of separate applications makes information fluid and accessible without much of a hassle. For example, when
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Relational Databases Jason A. Mizener Professor Merkel Intro to Information Technology 17 August 2014 Relational Databases As technology as grown throughout the years, so has the information it utilizes. Early on databases were organized through the hierarchical model, which was the earliest representation of the parent-child structure (each parent can have multiple children, but each child can only have one parent). Shortly thereafter the network database model was incorporated
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provides documentation of a student management system program testing. The application is java based and using a client/server model wherein which the client inputs, updates and queries to a MySQL database on server end. The database stores student information and data. The information stored by the database is first name, last name, student ID, mentor, GPA , student status, thesis title and thesis advisor for graduate students.. The program also determines tuition cost based on the type of student
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