elational Databases
For each table, identify the primary key and the foreign key(s). If a table does not have a foreign key, write None in the space provided.
PIMAY KEY
FOEIGN KEY
Truck
TUCK_NUM
BASE_CODE, TYPE_CODE
Base
BASE_CODE
TYPE_CODE
Do the tables exhibit entity integrity? Answer yes or no, and then explain your answer.
ENTITY INTEGITY
EXPLANATION
Truck
All rows under the primary key TUCK_NUM are uniquely identified and there are no null entries
Base
All rows under the primary key BASE_CODE are uniquely identified and there are no null entries
All rows under the primary key TYPE_CODE are uniquely identified and there are no null entries
19. Do the tables exhibit referential integrity? Answer yes or no, and then explain your answer. Write NA (Not Applicable) if the table does not have a foreign key.
TABLE
EFEENTIAL INTEGITY
EXPLANATION
Truck
Yes
All values under the foreign keys BASE_CODE and TYPE_CODE refer to a valid tuple in the BASE and TYPE tables, respectively. Null values are allowed
Base
NA
NA
Type…...
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References
Colonel, C., Morris, S., & Rob, P. (2012). Database Systems: Design, Implementation, and Management (10th edition). Boston, MA: Cengage Learning.
elational Databases in e-Commerce
Of the many uses of relational databases throughout enterprise software their use for supporting e-commerce initiatives and programs provides a foundation for assessing their performance at diverse data and taxonomy management, and scalability of transactions as well. The scalability, security and speed of relational databases when used for e-commerce tasks push them to the limits of performance and customization as well. An example of this is the widespread use of relational databases in creating and sustaining distributed order management systems (Connolly, Begg, 2006).
As e-commerce sites including Amazon.com, Apple, Dell, Expedia and others all rely on a series of catalogs that are unified through a common series of taxonomies. These catalogs and their taxonomies they are part of define how the logic and workflows of the distributed order management system operates over time. elational databases, many of them integrated to at the logical records level, are used for…...
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References
Thomas M. Connolly, & Carolyn E. Begg. (2006). A Constructivist-Based Approach to Teaching Database Analysis and Design. Journal of Information Systems Education, 17(1), 43-53.
Jia-Lang Seng. (2003). A study on industry and synthetic standard benchmarks in relational and object databases. Industrial Management + Data Systems, 103(7), 516-532.
They in short link and map ideas that already exist, creating real time answers to questions as they are applied to new and archived knowledge or action plans.
According to IDC reports, most data warehouses will be stored in a columnar fashion and not in rows, reporting and data collection problems will be solved with databases that have no formal schema at all, horizontal scalability through clustering will be achieved by large-scale database servers; and most OLTP databases will either reside entirely in memory or be augmented by an in-memory database. These new systems will encourage companies to forget disk-based partitioning schemes, buffer management, indexing strategies and embrace a world of large-memory models, many processors with many cores, clustered servers and highly compressed column wise storage. (Prakash, 2010)
The formats mentioned her by Prakash (2010) are fundamentally responsive to a new form of data storage and formatting, where objects are saved…...
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References
Booch, G (1991).: Object-oriented Design with Applications. Benjamin Cummings, Redwood
Brodie, M., J. Mylopoulos and J. Schmidt,(1985). On Conceptual Modeling. Springer-Verlag.
Codd, E.F., (1970). A Relational Model for Large Shared Data Bank, CACM.
Date, C.J., (1985). An Introduction to Database System, Addison Wesley.
Standard-elational and Object-elational Databases
Software development has experienced evolution over the past few decades given the increasing demands for better information systems in today's society, especially in the modern business environment. The evolution of software development during this period has also been influenced by the tremendous changes in the ways with which computers are used and programmed. The changes in software development have contributed to the emergence of different categories of databases, which are basically defined as repositories for assorted but interrelated pieces of data or information. Through the evolution of software development, database management systems have been transformed. The most common classifications of databases emerging from the transformation of database management systems include standard-relational and object-relational databases.
Standard-relational databases are those that support interactive data structures and utilize data manipulation language that is akin to relational algebra with regards to its power. Since they utilize powerful data manipulation language, standard-relational databases…...
Robie, J. & Bartels, D. (n.d.). A Comparison Between Relational and Object Oriented Databases for Object Oriented Application Development. Retrieved from University of California San Diego website: http://db.ucsd.edu/static/cse132b-sp01/RelvsObj.pdf
Database Concepts
Compare and contrast Microsoft Access, Microsoft SQL Server, DB2, and Oracle database programs
Providers: Microsoft Corporation provides Microsoft Access and SQL Server, Oracle by Oracle Corporation and DB2 is a product of IBM.
Brief about each:
MS Access: Microsoft Access is a database, which comes bundled in Microsoft Office Products. Access is fully compatible with Active Server Pages (ASP) scripting. Database programs such as Access (sometimes called Relational Database Management systems or RDBMS) are used to store information, often large amounts of information. It can be used as a flat-file database (using a single table) or a relational database (using more than one table linked together). Access database applications can be produced for a large number of database situations including financial and scientific data - with excellent results. Access comes equipped with Wizards, which help the novice to create tables, forms, queries and reports. A complicated relational database design and implementation may…...
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The longest SQL statement in Oracle is of 16,777,216 bytes, 65,536 bytes (Network packet size 4 KB, by default) in SQL Server, approximately 64,000 bytes in MS Access whereas in DB2 it is of 65535 bytes. Microsoft Access 2000 falls into the desktop category and works best for individuals and workgroups managing megabytes of data. In comparison with SQL Server 2000, Access uses file-server architecture, rather than client-server architecture. Access 2000 has many restrictions in comparison with SQL Server 2000 and cannot be used in the case you want to build stable and efficient system with many concurrent users
Conclusion:
It is very difficult to compare all the four on a same platform. It is not true that Oracle 9i Database is better than DB2 Universal Database v8.1 or vice versa. Both products can be used to make stable and proficient systems and the stability and effectiveness of your applications and databases depend rather upon the experience of the database developers and database administrator than the database's provider. It all depends on the use and requirements. If the need is to make a scalability, security, and robustness system, you should use SQL Server instead of Access. Because Access 2000 does not support atomic transactions, it does not guarantee that all changes performed within a transaction boundary are committed or rolled back. SQL Server is integrated with Windows NT security, but Access is not. Access 2000 databases cannot be restored to the point of failure, when SQL Server databases can be. This makes administering Access 2000 databases more expensive than administering SQL Server 2000 databases. So, you should use Access 2000 database, only when you need to store a small amount of data in a single user (or few users) environment, or when you have very low resources, such as memory or disk. In other case, use MSDE or SQL Server. Similarly we can't compare SQL Server 2000 with DB2 Universal Database v8.1 or vice versa. Both products can be used to build stable and efficient system and the stability and effectiveness of your applications and databases depend rather from the experience of the database developers and database administrator than from the database's provider. But SQL Server 2000 has some advantages in comparison with DB2 Universal Database v8.1 and vice versa.
Microsoft supports distributed component objects via distributed COM (DCOM). DCOM use remote procedure calls to organize data between processes and computers so that components appear to have the same word size, bit orientation, and address space. DCOM is a direct competitor to CORA, discussed next.
V. Common Object Request roker Architecture (CORA)
CORA is OMG's open, vendor-independent architecture and infrastructure that computer applications use to work together over networks (CORA asics). Using a standard protocol, a CORA-based program from any vendor, on almost any computer, operating system, programming language, and network, can interoperate with a CORA-based program from the same or another vendor, on almost any other computer, operating system, programming language, and network.
The core foundation of CORA is the Object Request roker (OR) that provides an interface between requesting objects and receiving objects (CORA, TechTarget). OR support in a network of clients and servers on different computers means that a client…...
Databases and their relational file structures have also progressed to the point of being open in architectural structure enough to allow for real-time updates via XML calls and integration points throughout individual and shared files (oth, Hernandez, Coulthard, Yan, et al., 2006). This open architecture-based approach to XML integration is also making databases ideally suited for transaction-intensive environments throughout e-commerce websites and throughout complex transactions involving multiple selling partners through a supply chain as well (Smyrlis, 2005). As a result, databases are the foundation of distributed order management, enterprise content management, enterprise resource planning (EP) and Customer elationship Management (CM) systems.
Databases and Security
Databases in organizations and governments often hold the most confidential data that exists and therefore need to be protected extremely well. The dominant standard for database security is ACID (atomicity, consistency, isolation, durability) compliance (Dolgicer, 1993). When an ACID test of compliance is completed on a database these…...
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References
Dolgicer, Max (1993, June). The ACID test for distributed transactions. Data Communications, 22(9), 25.
Araby Greene (2008). Managing subject guides with SQL Server and ASP.Net. Library Hi Tech, 26(2), 213-231.
Margo Hanna (2004). Data-mining algorithms in Oracle9i and Microsoft SQL Server. Campus - Wide Information Systems, 21(3), 132-138.
Ken Krizner. (2002, May). Turning inventory into profits. Frontline Solutions, 3(5), 16-20.
Design citeia exist at the levels of the technical, system integation aspects of the database to othe systems though XML. This integation is citically impotant to ensue that the applications ceated can be effectively used ove time and not have any scalability issues. Thee is also the need fo designing the databases at the pesentation laye to povide fo scalability and flexibility of being able to ceate applications elatively quickly at the potal level. This is especially impotant fom a Business Pocess Management (BPM) standpoint as databases must be able to suppot the vaious pocess wokflows as defined as pat of business pocess e-engineeing effots ove time. Thee is also the need fom a design standpoint to have a continued development initiative going to captue use needs ove time and include them into the next geneation of database updates. The use of councils to ceate update plans and define the…...
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references and real-time workload in information services. Information Systems Research, 11(2), 177-196.
Pangalos, George (1994). A tutorial on secure database systems. Information and Software Technology, 36(12), 717.
Gerald Post & Albert Kagan (2001). Database management systems: Design considerations and attribute facilities. The Journal of Systems and Software, 56(2), 183-193.
Ji Ma, Mehmet A Orgun. (2008). Formalising theories of trust for authentication protocols. Information Systems Frontiers, 10(1), 19-32.
Reagan, J., & Rowlands, I.. (2007, January). Key Technologies Enabling a Seismic Shift in Enterprise Data Management. Business Intelligence Journal, 12(1), 17-25.
Oracle supports stored programs such as stored procedures and packages. This enables the developers to centralize application logic in the database. Oracle provides powerful functions and sub-queries in its SQL statements. Developers can distribute systems by database links, materialized views and distributed queries. This feature saves much cost for developing distributed systems and applications. And there's a lot of features integrated with Oracle, compare to other database it is very expensive but it is extremely powerful and fast.
D2 is a relational database system developed by IM Corporation. It has been designed for use on large mainframe computer systems running on a variety of platforms including SunOS, Solaris, Linux, Windows 95/98/NT/2000 and HP-UX. D2 supports many variety of platforms, standards and packaging options to deliver the needs of every business D2 database delivers a flexible and cost-effective database platforms achieving demand on business applications. It further leverages the resources with…...
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Bibliography
Microsoft Online. Retrieved 20 Nov 2004, from Microsoft.Com.
Database Data Warehouse Design
Our company, Data Analytic Limited, specializes in collecting and analyzing data for various organizations. Over the years, we have assisted various companies to turn raw data into valuable information that assists the companies in making effective decision profitable in the short and long run. Our research and data analytics are geared towards giving extra edge to various companies. Our services include processing and analyzing terabytes of data to provide customer meaningful information for business decision and enhance competitive market advantages. ecent growth of our company necessitates the needs to design and develop data warehouse that will accommodate large volume of customer data.
Objective of this project is to design and develop the data warehouse for our company.
Importance of Data Warehousing for our Organization
Comprehensive portfolios of our business include Business, Market, and Financial research, Data processing services and Domain based analytics. While the relational database that our company is…...
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Reference
Hillard, R. (2010). Information-Driven Business. UK. Wiley.
Microsoft (2012).Data Warehousing | Microsoft SQL Server 2012. Microsoft Corp.
Patil, P.S., Srikantha, R., Suryakant, B.P. (2011). Simplification in the Reporting and Analysis Optimization of the Data Warehousing System:, Foundation of Computer Science, 9 (6): 33 -- 37.
Rostek, K. (2010). Data Analytic Processing in Data Warehouses. Foundations of Management, 2(1), (2010), 99-116.
This would also mean that the shadowing process goes on behind the scenes, and one need not even be aware that the process is in fact going on at any point of time; it can go on without creating any sort of disturbance to the user of the application, at any point of time. (Shadow Files)
Another important advantage of using the shadowing of a database is that data would be immediately available, even when the primary database has failed due to some reason or another. Non-exclusive usage of the primary database is also permitted, and this means that the database will not be locked, and this in turn means that it can be updated and changed during the process of its creation. Computer resource can be conserved, and this is because of the fact that shadowing does not use any separate process; the database process gives the shadow database…...
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References
Database Shadowing System with data tags that select an operation of the save command"
Databases in the Work Place
We are in the information age and the effective management of data is paramount in almost all aspects of our life. All businesses today thrive on the availability of vast pool of data pertaining to their domain and thus databases constitute an indispensable aspect of all businesses. Having access to a huge database and the intelligent interpretation of the data therein holds the key to business success. I am working as a database engineer for "Intelligent Email Solutions," a company which specializes in offering email based intelligent customer relationship management solutions. Let us have a brief overview of the use and the importance of databases in our company.
Database
Our clientele are big corporations like Nike, Citibank, ANZ Grindlays, Jc penny etc. We provide automated email-based customer relationship management using our novel 'semantic engine' which scans through thousands of customer emails and categorizes them and routes them back…...
Databases
Analysis and Overview of Database ystems in the Enterprise
The pervasive adoption of databases for aggregating, analyzing, parsing, reporting and storing data continues to exponentially increase over time, as the information needs of companies continued to increase. The foundation fo nearly every enterprise-wide system and computing platform includes integration to databases of many types, from object-oriented to relational (Lungu, Velicanu, Botha, 2009). Every Enterprise Resource Planning (ERP) system today relies on databases for product, pricing, costing, production scheduling, service coordination and manufacturing execution task coordination as well (Bremer, Carey, 1987). Databases have become an essential component of every enterprise system in use today, from coordinating supply chains, sourcing, production and tracking customer activity and sales through Customer Relationship Management (CRM) systems (Madduri, hi, Baker, Ayachitula, 2007). Object-oriented databases are pervasively used in Computer-Aided Drawing (CAD) applications as well, given their speed and accuracy in managing geographic and graphic primitives (Chu,…...
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Sarkar, S.S. (1989). Architecture and language for a layered relational database. The University of Texas at Dallas). ProQuest Dissertations and Theses,, 145
Toth, K.C. (1980). Distributed database architecture and query processing strategies. Carleton University (Canada)). ProQuest Dissertations and Theses,,
Worboys, M. (1989). Relational databases: A theoretical primer. Information and Software Technology, 31(3), 115-115.
To implement this algorithm, it is essential to simulate locking of what the books mentions as an item X that has been transcribed by transaction T
until T
is either committed or aborted. This algorithm is not what would turn into deadlock, for the reason that T. waits for T
only if TS (T) > TS (T
) (Elmasri, 2011).
According to the book, strict timestamp ordering differs from basic timestamp ordering because basic timestamp ordering is utilized whenever some transaction T. attempts to subject a read item (X) or a write item (X) operation, the basic to algorithm is the one that compares the timestamp of T. with read_TS (X) and write_TS (X) to ensure that the timestamp where as the strict timestamp does not. Another difference is the fact that the basic lets us know that if the proper order is violated, then transaction T. is the one that is always aborted…...
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Works Cited
Elmasri, R. & . (2011). Fundamentals of database systems (6th ed). Boston, MA:.: Addison-Wesley.
Database Software
Comparing Microsoft Access, SQL, IBM DB2 and Oracle databases is presented in this analysis, taking into account the key features of ACID Compliance, Data partitioning, interface options, referential integrity, operating systems supported, and support for transactions and Unicode. Each of these factors is initially defined followed by a table comparing them across the database types.
Definition of Comparison Factors
At their most fundamental level, all databases have support for relational data models and the ability to index data through the use of a wide variety of taxonomies or organizational structures (Basumallick, Wong, 1996). elational Database Management Systems (DBMS) however all have the ability to manage transactions with the greatest efficiency given the design of these systems to support multiple transactions at once, running concurrently from each other. The characteristic of an operating system being able to manage thousands of concurrent transactions at the same time is often referred to as…...
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References
Basumallick, Swagato, & Wong, Johnny SK. (1996). Design and implementation of a distributed database system. The Journal of Systems and Software, 34(1), 21.
Tony Politano. (2008). Structured and Unstructured: The What, Why and How of Convergence. DM Review, 18(6), 20.
Stonebraker, M.. (2010). In Search of Database Consistency. Association for Computing Machinery. Communications of the ACM, 53(10), 8.
Research Systematic investigation to establish facts or principles
Database Organized collection of data stored electronically
Importance of Research and Databases
Research drives progress and innovation
Databases facilitate efficient data organization and retrieval
II. Body
Components of a Research Outline
Research Question or Hypothesis
Literature Review
Components of a Database Outline
Data Tables and Fields
Queries and Reports
Integration of Research and Databases
Utilizing databases to store and analyze research data
....
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