Please help with this question! Part I—Hands-on Lab

Jul 18th, 2016
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For this assignment, you will display and modify information from a Microsoft Access database by using SQL commands. Using the Microsoft Access database Books, write SQL statements for the following tasks. Once complete, copy the SQL statements from Microsoft Access and paste them in a Microsoft Word document that will be submitted along with part II of the assignment. Write an SQL statement to display the publication ID, publication date, cost, and category of each book planned for publication ID number 4. Repeat the previous task but include ID and Date as column aliases for the first two columns. Write an SQL statement to display the least expensive retail price book in each book category. Repeat the previous task but sort the displayed categories in the descending order. Write an SQL statement to display the customer number, city of destination, and shipping date for all shipments with order number above 2. (Hint: Use the Orders

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1.Examine the data set carefully, and note down any particular characteristics, especially appearance of NULL values,use of dates, and so on.2. Make sure I fully understand the expected results and validate them, manually.3. Break the problem down into a series of simple steps, write the T-SQL, view the results, adjust if necessary, and moveon to the next step.The key at each step is to understand and accept that the first, most intuitive solution is unlikely to be the fastest ormost scalable. As I explained in my previous series, Writing Efficient SQL, we need to look for opportunities to useset-based techniques that will help avoid non-scalable row-by-row processing, work with the smallest data set for anyexpensive calculations, scan the data as few times as possible, and so on. If my solution still fails to meet myexpectations for performance, I try to "pair" with a co-worker, or ask advice from a T-SQL guru in the community, tohelp me find a better solution.I recently helped solve a business problem that illustrates this process, and these ideas, perfectly. Based on datafrom a time clock, the challenge was to calculate based on a series of entry and exit times for employees, the amountof time between each entry and exit recorded, for each person. I present first a solution that will work on SQL Server2008 and SQL Server 2008 R2, but has to scan the data a number of times to arrive at the result. Since that solutionwas not acceptable, I enlisted the help o

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