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Under what siyuations would you use sequential file over database? Explain these situations. When would the database be more beneficial than sequential file? Is it possible for two kinds of permanent storage to be used interchangeably? Describe your answers.
Using your knowledge of the college environment, determine the functional dependencies that exist in the following?
Compare activity (quite theoretical) of the disk (in number of bytes) required for each of both relational. Write down the advantages and inconveniences of new relational scheme.
Draw Active Directory hierarchy in terms of forests, trees, domains, organizational units, and sites which are most suitable for this company and their security concerns.
Assume that data warehouse consists of three dimensions time, customer, and cell phone plan, and two measures number of calls and cell phone bill. Sketch a schema diagram for above data warehouse using star schema.
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
Draw an ER diagram for database scenario. Design a set of 3NF tables for your database scenario.
For each table argue whether or not interference with another transaction is possible. Illustrate concurrency control method using two phase locking.
Prepare a memorandum examining use of databases in organization. Write database applications are used: Microsoft Access, DB2, Oracle, etc.
Based on the schema write SQL statements and provide the equivalent relational algebra expressions - relational algebra expressions return and give the equivalent SQL statements.
Design an Entity model and construct a set of tables with suitably defined columns to support this scenario and find details of all books stocked in London
Design a Database schema
Use the results of the transcripts of an interview with IT consultant. Prepare a Fully Attributed Data Model. Add the data attributes for each entity."
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