Week 1 Homework

IT 203 Week 1 Homework 1. A informationbase management system (DBMS) is a softw be package with computing device programs that control the creation, maintenance, and use of a database. A DBMS provides facilities for dictatorial data access, enforcing data integrity, managing concurrency control, and convalescent the database after failures and restoring it from endorseup files, as well as maintaining database security. A relational database organizes data into sends of overlapping tables. 2. Business logic is the find of rules that govern an organizations processes. 3. In a modify/ host relationship, there are only dickens machines in the process. The invitee is responsible for two processes: presentation, and petitions. The client, or end user, sends a take for information to the legion, which and so(prenominal) replies with a response. The client then formats the information in a guidance that is useful to the user. In the three-tier relationship, the client/server relationship is all-embracing by dividing up the server tasks into two tiers, the application server and data server. The request from the client goes to the application (or logic) server, and the data request is then passed on to the data server. This then processes the request and passes it back to the logic server, and then onto the client. 4.

An entity is a thing or quarry of importance astir(predicate) which data must(prenominal) be captured. Some examples big businessman embroil employees, orders, or books. 5. Database attributes exemplify characteristics or values astir(predicate) a database relation (also cognize as a table). Examples allow acknowledgment numbers, names, and phone numbers. 6. demo 1-9: POSSIBLE TABLES --- ENTITIES| (RELATED) COLUMNS --- handle| bear on| First, Last, node Care rep| ADDRESS| Street, State, Zipcode, City| nib| account number, Order leave| ITEMS| ItemID number, Description, Quanitity| COST| Cost per Unit, integrality| Exhibit 1-10: POSSIBLE TABLES --- ENTITIES| (RELATED) COLUMNS --- FIELDS|...If you want to get a practiced essay, order it on our website: Ordercustompaper.com

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