Problem 1
Given a QDEL table from QSALE DB provide as many alternative ways (queries with different execution/explain plan) to perform the following task (problem pattern): select every 5th record.
Make sure to test your code and demonstrate validity of each solution.

Problem 2
a) Given a QITEM table from QSALE DB copy its content into NEWITEM table.
b) Make three unrelated and elementary changes (one record update, one new record insert, and one old record delete) making sure you do not leave any duplicates.
c) Provide as many different ways using SQL to accomplish following task: compare the tables QITEM and NEWITEM to assess if they are exactly the same. Make sure to test each of your solutions.

Solution PreviewSolution Preview

This material may consist of step-by-step explanations on how to solve a problem or examples of proper writing, including the use of citations, references, bibliographies, and formatting. This material is made available for the sole purpose of studying and learning - misuse is strictly forbidden.

    $75.00 for this solution

    PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

    Find A Tutor

    View available Database Development Tutors

    Get College Homework Help.

    Are you sure you don't want to upload any files?

    Fast tutor response requires as much info as possible.

    Upload a file
    Continue without uploading

    We couldn't find that subject.
    Please select the best match from the list below.

    We'll send you an email right away. If it's not in your inbox, check your spam folder.

    • 1
    • 2
    • 3
    Live Chats