Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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2. Change the CONTACT view so that no users can accidentally perform DML operations onthe view.
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What's the difference between a partial view and a view?
Using R and mtcars data set, perform the exercise
Create a new object named car_inner containing the observations that have matching values in both tables mtcars and cars_table using as key the variable ID.
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- Update the VID_STATUS attribute of the VIDEO table using a subquery to set the VID_STATUS to OUT for all videos that have a null value in the DETAIL_ RETURNDATE attribute of the DETAILRENTAL table.arrow_forwardCreate a view called HOMEWORK13 that includes the columns named Col1 and Col2 from the FIRSTATTEMPT table. Make sure the view is created even if the FIRSTATTEMPT table doesn’t exist.arrow_forwardCreate an updatable view named VendorAddress that returns the VendorID, both address columns, and the city, state, and zip code columns for each vendor. Then, write a SELECT query to examine the result set where VendorID=4. Next, write an UPDATE statement that changes the address so that the suite number (Ste 260) is stored in VendorAddress2 rather than in VendorAddress1. To verify the change, rerun your SELECT query.arrow_forward
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