Q: Review the metadata file for the db_samwh database and the
Review the metadata file for the db_samwh database and the definitions of the database tables. (You can use SHOW TABLE commands to display the DDL for tables.) Are dimension tables conformed in this d...
See AnswerQ: The database you are using was developed by MicroStrategy, a leading
The database you are using was developed by MicroStrategy, a leading business intelligence software vendor. The MicroStrategy software is also available on TUN. Most business intelligence tools genera...
See AnswerQ: Take the query you scrapped from Problem and Exercise 9-58
Take the query you scrapped from Problem and Exercise 9-58 and modify it to show only the U.S. region grouped by each quarter, not just for 2005 but for all years available, in order by quarter. Label...
See AnswerQ: Using the MDIFF “ordered analytical function” in Teradata SQL (
Using the MDIFF “ordered analytical function” in Teradata SQL (see the Functions and Operators manual), show the differences (label the difference CHANGE) in TOTAL from quarter to quarter. Hint: You w...
See AnswerQ: Consider the data needs of a small accounting department at a tax
Consider the data needs of a small accounting department at a tax services firm. What would some of the data entities be in this setting? List and explain their relevance. Develop a project data model...
See AnswerQ: Because data warehouses and even data marts can become very large,
Because data warehouses and even data marts can become very large, it may be sufficient to work with a subset of data for some analyses. Create a sample of orders from 2004 using the SAMPLE SQL comman...
See AnswerQ: GROUP BY by itself creates subtotals by category, and the ROLLUP
GROUP BY by itself creates subtotals by category, and the ROLLUP extension to GROUP BY creates even more categories for subtotals. Using all the orders, do a rollup to get total order amounts by produ...
See AnswerQ: Compare the JSON and XML representations of a record in Figure 10
Compare the JSON and XML representations of a record in Figure 10-1. What is the primary difference between these? Can you identify any advantages of one compared to the other? Data from Figure 10-1:...
See AnswerQ: Review Figure 10-3. For each of the formats,
Review Figure 10-3. For each of the formats, identify the elements that are data values and those that are labels describing the data. Data from Figure 10-3:
See AnswerQ: Review Figure 10-5 (a). Write a MongoDB query
Review Figure 10-5 (a). Write a MongoDB query to display all products with review ratings greater than 3 stars and suppress the fields “height†and â€...
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