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1) Where can sub queries be placed in a SQL select statement?
2) What tables are good candidates for indexes and what type of indexes would you place on those tables?
3) What type of data model is used in data marts to improve performance?
Create a SQL Select Query to pull Product_ID, Product_Description and Units_Sold for Product 85773 from the CSS.Sales table. Hint: do not use the CSS prefix in your query
for each table identify a super key and a foreign key
Explain the fundamentals of how data is physically stored and accessed and compose conceptual data modeling techniques that capture information requirements - design a relational database so that it is at least in 3NF.
You are to design a prototype for a hospital management system. Design a data model for this system, Convert the data model to a set of virtual windows.
Develop a Context Diagram and a System Level Data Flow Diagram , make sure you properly identify all the components. Develop an ERD as well making sure you properly label the Entity name.
As an external consultant, you have been hired by Overstock.com to evaluate the effectiveness of the processes they undertook in implementing its ERP system and to present your evaluation in report format to the CEO Patrick Byrne
To analyse and comprehend a provided ER diagram and Database Schema and to implement a database based on the provided ER diagram and Database Schema To write required SQL statements to query the database
Create an XML file with markup tags and some sample data to represent a list of invoices. Include the XML tags for two invoices in the list. Also, assume the invoices are created from a database whose tables are shown in the following database re..
Perform the following steps in MySQL: Add at least five (5) records into each table (Note: You must determine the field values). Create a query that includes students' first names, last names, and phone numbers
Design an entity-relationship model of the problem, convert the model into a relational model, and assess the normal form of each schema.
Departments all have department IDs, department names, and a department description, and a department manager.
Issue an INSERT statement to insert a new record in new user session - Login to the Oracle server using SQL Developer and write and execute the SQL command needed to create a new user with a username and password of your choosing.
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