Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 5, Problem 10HOA
Execute a command that undoes the previous deletion.
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If you are unclear where the update.txt file is stored on your computer, you may want to print a copy for safekeeping.
If you do not know where the update.txt file is located on your computer, print a copy.
Two separate commands, DELETE and TRUNCATE, exist.
Chapter 5 Solutions
Oracle 12c: SQL
Ch. 5 - Which command should you use to copy data from one...Ch. 5 - Which command can you use to change the existing...Ch. 5 - Which of the following is a correct statement? a....Ch. 5 - Which of the following is a valid SQL...Ch. 5 - Which of the following statements deletes all rows...Ch. 5 - What is the maximum number of records that can be...Ch. 5 - Add a new row in the ORDERS table with the...Ch. 5 - Prob. 2HOACh. 5 - Save the changes permanently to the database.
Ch. 5 - Add a new row in the ORDERS table with the...
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- If you're not sure where the update.txt file is on your machine, you can print a copy.arrow_forwardThe Developers team also wants you to ensure that emails are converted to lowercase after an update operation. Currently, new insertions are guaranteed to have lowercase emails, but there is no such guarantee for legacy emails. Therefore, the team wants to ensure that emails are being retained in a lowercase irrespective of any changes in the database. Create a new TRIGGER called email_update for the USERS table that runs before an UPDATE operation. Task Create a TRIGGER to run on the USERS table before any UPDATE operation.arrow_forwardIf you do not know the location of the update.txt file on your computer, print a copy.arrow_forward
- If you can't remember where the update.txt file is on your machine, print it out.arrow_forwardIt is recommended that you print one copy if you are unsure of the location of the update.txt file on your computer.arrow_forwardIf you don't know where the update.txt file is located on your computer, it's a good idea to print a duplicate.arrow_forward
- Task 5: The Developers team also wants you to ensure that emails are converted to lowercase after an update operation. Currently, new insertions are guaranteed to have lowercase emails, but there is no such guarantee for legacy emails. Therefore, the team wants to ensure that emails are being retained in a lowercase irrespective of any changes in the database. Create a new TRIGGER called email_update for the USERS table that runs before an UPDATE operation.arrow_forwardIf you don't know where the update.txt file is located on your computer, print one copy.arrow_forwardIf you can't remember where you saved the update.txt file, it's a good idea to print a duplicate just in case.arrow_forward
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