Database Management

A Course Presented to The Academic Department Of the School of craft and economic science In Partial Fulfillment of the Requirements For the principal of Master in Information Systems Introduction A assembling of architectural plans that enables you to store, modify, and extract entropy from a database. on that point argon many dissentent types of database management systems, ranging from small systems that contribute on personal computers to huge systems that run on mainframes. The spare-time activity argon examples of database applications: . Computerized library systems . Automated teller machines . Flight taciturnity systems . computerized part inventory systems From a technical standpoint, DBMSs arouse differ widely. The damage relational, network, flat, and hierarchical all refer to the way a DBMS organizes breeding internally. The internal organization can extend to how chop-chop and flexibly you can extract information. Requests for information from a database are made in the form of a interview, which is a interpret question. For example, the query SELECT ALL WHERE NAME = smith AND AGE 35 requests all records in which the NAME work is SMITH and the AGE field is greater than 35. The set of rules for constructing queries is cognize as a query language. incompatible DBMSs support assorted query languages, although there is a semi-standardized query language called SQL (structured query language).

Sophisticated languages for managing database systems are called fourth-generation languages, or 4GLs for short. The information from a database can be presented i n a word form of formats. most DBMSs includ! e a report writer program that enables you to soak up data in the form of a report. many another(prenominal) DBMSs also include a graphics component that enables you to output information in the form of graphs and charts. Whats wrong with a file console system (and also whats right) The file system that comes with your computer is a very primitive kind... If you want to get a in force(p) essay, order it on our website: BestEssayCheap.com

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