9465Data Marts: Answer 1 of 3 (include question number in post): 1) How do indexes improve SQL query performance? 2) How can stored procedure design improve query times in a data mart? 3) Why/How does de-normalization of a data mart design improve performance of queries? Architectures: Answer 1 of...
9421Attachments: Ch19_Assignment_Tools.zip - Contains an MS Access database Ch10_ABC_ERD.mdb TEMPLATE - Structured Word document template for stating a problem to solve and providing a place to put your solution....
9420SQL Joins: Answer 1 of 3 (include question number in post): What is a Inner joins vs. outer joins? What is a Natural Join vs. Cross join? What is a Subquery? Transactions: Answer 1 of 2 (include question number in post) What is a Transaction? Show an example. What is a...
9387Instructions: Download the three files: - Ch08_SimpleCo.mdb - Has queries in place for running SQL in MS Access, modifying SQL and saving queries with meaningful names; your modified database is deliverable #1. - Ch08-Advanced-SQL_Solutions_1_11_SimpleCo.docx - Is a reference for solving Problem 8. - ITM450_Wk1_Asgmt_Chapter8_Worksheet.xlsx - with instructions: Chapter 8:...
9386DBLC Stages: Answer 1 of 2 (include question number in post) 1. Which stages of DBLC are similar or different than SDLC? 2. What techniques validate a DB logical model? RDBMS Runtime: Answer 1 of 3 (include question number in post) 1. What are 3 areas that RDBMS runtime...
9328Answer the following questions: 1. Define and discuss the concept of transitive dependency. 2. What three data anomalies are likely to be the result of data redundancy? How can such anomalies be eliminated? 3. Suppose that someone tells you that an attribute that is part of a composite...
9327Instructions Each Student will select a situation or a problem from their company as a course project that can be solved using a database system. Using MS Access, or MS SQL Server Express. Each student will create a relational database model of the system. The project should...
9304Instructions Answer all problems in the attached word document file. Use the Ch07_SaleCo database that is attached....
9303Answer the following questions: 1. Discuss, with examples, what are "referential constraint actions"? 2. Explain why it might be more appropriate to declare an attribute that contains only digits as a character data type instead of a numeric data type. 3. Explain why the two following commands produce...