Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Textbook Question
Chapter 5, Problem 20MC
What is the maximum number of records that can be modified with a single UPDATE command?
- a. 1
- b. 2
- c. 3
- d. unlimited
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You accidentally deleted all the orders in the ORDERS table. How can the error be corrected after a COMMIT command has been issued?a. ROLLBACK;b. ROLLBACK COMMIT;c. REGENERATE RECORDS orders;d. None of the above restores the deleted orders
(a) Which command makes updates permanent?(b) Which command reverses updates?
(c) Which updates are reversed?
If you are unsure of the location of the update.txt file on your computer, print one copy.
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 are unsure of the location of the update.txt file on your computer, print a copy.arrow_forwardWhat command produces an exhaustive list of all the files and their permissions in the current directory?arrow_forwardIf you do not know the location of the update.txt file on your computer, print a copy.arrow_forward
- 61. The command in DBMS in which the all the records existed in the file are retrieved in specific order is classified as a. Find All command b. Find n c. Find Ordered command d. Reorganize commandarrow_forwardPlease help write a command that uses the output of git log to find all the unique contributors, case-insensitively, to the repository. A “contributor” should be all of the text that appears after “ Author: ” in the git log . Authors with the same name but different emails should be considered distinct. The output should be written to a file called contributors.txt: (will leave a like)arrow_forward"ls" command to list ALL the contents of a directory in long format, sortedin reverse by last modification time?arrow_forward
- What command returns a comprehensive list of all the files in your current directory, along with their permissions?arrow_forwardWhat command returns a comprehensive list of all the files in your current directory, including their permissions?arrow_forward31. Locking may cause which of the following problems? a. Erroneous updates b. Deadlock c. Versioning d. All of the above.arrow_forward
- 94. What are the different events in Triggers? a. Define, Create b. Drop, Comment c. Insert, Update, Delete d. Select, Commitarrow_forwardWhat command generates a comprehensive list of all the files in the current directory, together with the permissions associated with each file?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
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