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Perform the following from the SQLZoo site.
a) JOIN: HYPERLINK "https://sqlzoo.net/wiki/The_JOIN_operation" https://sqlzoo.net/wiki/The_JOIN_operation (skip question 13) b) JOIN quiz: HYPERLINK "https://sqlzoo.net/wiki/JOIN_Quiz" https://sqlzoo.net/wiki/JOIN_Quiz When you are finished, you need to either create a .pdf or take a screenshot showing
For a), your work For b), your work and score
In the labs at school, you can generate a .pdf by printing the page to the pseudo printer CutePDF Writer. If you use the Chrome browser, it has a built-in feature for creating PDFs.
Then, c) Write your own question (in English) that involves JOINing two tables (game, goal, eteam). d) Write the SQL to answer the question from (c). Put your answers to c and d in a separate document.
Write a trigger and two test sql statements. The first statement should succeed and the second statement should fail (i.e., the second statement violates the constraint and your trigger must block it and issue an error message).
Explain entity integrity and referential integrity rules in relational model.show how these aer realized in sql
create a plsql block to achieve the following using the hr schemaselect the name salary and department of the employee
Write a procedure that takes a car registration and returns the most recent date of rental and the maximum rental period for that car. The procedure had the following formal parameters
Please note that for "Table Employees" due to length of the table description and page size limit, I have broken it into 2 parts for better visibility, please make sure to use all the given attributes from the table.
Write a Select statement that determines whether the PaymentDate column of The Invoices table has any invalid values.
Display all the LastNames from the Customers table and any associated OrdersIDs from the Orders Table. Show the LastName even if they do not have any associated orders. Order the results by LastName in ascending order.
Write PL/SQL block which displays last name and salary of following people. Each of these can be done separately as PL/SQL, first to test and get output lines.
The patient information along with the ID of any prescribing doctor for each patient and the prescription information along with patient name, DOB, medication brand name, and prescribing doctor name sorted by most recent date.
As DBA, your manager called a meeting and asked why there are so many orders for customers that don't exist in the customer table. Write query which would shows which customers were missing for existing orders. Use a join or a subquery.
Write a XQuery which returns all concert titles whose type is chamber orchestra where average ticket price is at least $50.
Write your queries so that the final answers will never include duplicates, but add the keyword DISTINCT only in cases where duplicates would otherwise be produced.
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