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Explain the differences between structured data and unstructured data.
Structured data are facts concerning objects and events. The most significant structured data are numeric, character, and dates. Structured data are kept in tabular form. Unstructured data are multimedia data like documents, photographs, maps, images, sound, and video clips. Unstructured data are most usually found on Web servers and Web-enabled databases.
Determine the Derived attribute to avoid re-computation Each class box consists of an ordered list of attributes and operations, each represented as a next string. We can find
what is completeness constrent?
Create an entity relationship diagram, Database Management System
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
what do you mean by consistency in rdbms?
draw ER diagram of student entity and course entity where attribute of student entity are student roll, student name, student phone and student address and attribute of course enti
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
What is meant by computing the closure of a set of functional dependency? The closure of F denoted by F + is the set of functional dependencies logically implied by F.
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
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