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Can Oracle have multiple group functions in the same SELECT list of query (i.e can we do a COUNT and AVG)? Let us assume we wanted to find lowest, highest, average, and total number of salaries by department in a company. What SQL query would give us this, in the most meaningful format, assuming that we have two tables of EMPLOYEES and DEPARTMENTS and that they are related thru the Dept_ID column?
Design and build a prototype data warehouse using the data on Spend over £25,000 in the Science and Technology Facilities Council
Knowledge and Data Warehousing
Create a database from scratch that contains, at a minimum, the elements listed below
Explain the differences between the storing data in Access and Excel. Why you would use a spreadsheet over the database?
What are the functional dependencies among the data represented in this first normal form relation?
Draw an ER diagram for database scenario. Design a set of 3NF tables for your database scenario.
You have a company, specializing in managing technology solutions. you have ben just hired by big firm to execute a well-planned strategy.
Course: data mining. Require a 7 page essay on subjects: Warehouse Architectures: the paper requires to contain information about centralized, federated, and tiered data warehouse.
Use Cases Perform a requirements analysis for the Case Study
Write an SQL query to get the author of the book "The Alchemist"
Difference between obsolescent and redundant stocks
Use technology and information resources to research issues in database systems. Write clearly and concisely about relational database management systems using proper writing mechanics and technical style conventions.
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