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In a job interview with a branch manager of a bank that operates in multiple Canadian provinces and the Yukon, you learn that all of the information is captured in real time in a single operating database. In addition, all of the reporting is done from a single data warehouse using SAP Business Intelligence software. Due to the bank's reliance on databases, the branch manager asks you the following questions to gauge your understanding of databases.
1. Operating database includes a Customers table and a Loans table. List some of the fields in each of these tables and indicate the key field in each table. What is the relationship between these two tables?
2. What actions will you be able to perform on the operating database using the bank's database application? Explain the relationship of the data warehouse to the business intelligence tools?
4. Bank's senior management will be using SAP business intelligence software for strategic decision making. Give an example of a strategic decision that the bank's senior management may make and the information that may be used for this decision.
Strong entity set and weak entity set? Strong entity set and weak entity set: A strong entity set has a primary key. All tuples in the set are distinguishable through that key.
Compute the closure (F+) for the following set of the functional dependencies defined on R(a,b,c,d), where F - {c→ a, ab → d, a → b, d → c}, i.e. what are all of the FDs implied b
Self-Join: In a self join a table is joined with itself. Let consider the following sample partial data of EMP table EMPNO ENAME MGRID
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
Mention the purpose of SID and SOD lines SID (Serial input data line): It is an input line by which the microprocessor accepts serial data. SOD (Serial output data line)
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The Conceptual Level or Global level The conceptual level presents a logical view of the complete database as a unified whole. It permits the user to bring all the data in th
Eliminate Columns Not Dependent On Key The Employee Relation satisfies - First normal form - As it has no repeating groups. Second normal form - As it do not have multi-a
how many hourse have been spent on a certain project
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