Which of the following statements defines a TRANSACTION? a. A transaction is a physical unit of work. b. A transaction is a sequence of steps that accomplish a single task. c. A transaction is a physical sequence of steps to accomplish a task d. A transaction is logical units of work. e. All of the above f. None of the above

Which of the following statements defines a TRANSACTION? a. A transaction is a physical unit of work. b. A transaction is a sequence of steps that accomplish a single task. c. A transaction is a physical sequence of steps to accomplish a task d. A transaction is logical units of work. e. All of the above f. None of the above

Oracle 12c: SQL

3rd Edition

ISBN:9781305251038

Author:Joan Casteel

Publisher:Joan Casteel

Chapter6: Additional Database Objects

Section: Chapter Questions

Problem 8MC

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Please write down all the transaction functions too
You want to find association rules on the following grocery transaction records. ID Items 101 Bread (B), Eggs (E), Milk (M) 102 Milk (M), Oil (O), Sugar (S) 103 Bread (B), Eggs (E) 104 Bread (B), Eggs (E), Milk (M), Sugar (S) Suppose you are preparing data files to be run by Weka and Rattle. Enter the data for Weka in ARFF format (including both the header and the data values). Enter the data for Rattle in Transaction format
46. Which of the following is a property of transactions? a. Atomicity b. Durability c. Isolation d. All of the mentioned
a) Start a transaction. b) Delete the production company named Searchlight from the production table. c) List all the data in your table production. d) Rollback the transaction. e) List all the data in your table production.
Which of the following statements represents a correctly structured transaction? a.) BEGIN;COMMIT;insert into album (artist_id, title, album_id) values (1, 'My Album', 348);insert into playlist (playlist_id, name) values (30, 'New Age Playlist'), (31, 'Oldies'), (32, 'Road Trip');UPDATE albumSET title = 'Out of Exile [Disc 1]'WHERE album_id = 11; b.) BEGINinsert into album (artist_id, title, album_id) values (1, 'My Album', 348);insert into playlist (playlist_id, name) values (30, 'New Age Playlist'), (31, 'Oldies'), (32, 'Road Trip');UPDATE albumSET title = 'Out of Exile [Disc 1]'WHERE album_id = 11;COMMIT; c.) BEGINinsert into album (artist_id, title, album_id) values (1, 'My Album', 348)insert into playlist (playlist_id, name) values (30, 'New Age Playlist'), (31, 'Oldies'), (32, 'Road Trip')UPDATE albumSET title = 'Out of Exile [Disc 1]'WHERE album_id = 11COMMIT d.) BEGIN;insert into album (artist_id, title, album_id) values (1, 'My Album', 348);insert…
140. Which of the following is not a property of transactions? a. Atomicity b. Concurrency c. Isolation d. Durability
Please produce a set of normalized relations for the following statements.
Which of the following statements is true?a. A gap can appear in a sequence created with the NOCACHE option if the system crashes before a user can commit a transaction.b. Any unassigned sequence values appears in the USER_SEQUENCE data dictionary table as unassigned.c. Only the user who creates a sequence is allowed to delete it.d. Only the user who created a sequence is allowed to use the value enerated by the sequence.
48. Which of the following is not a property of a transaction? a. Atomicity b. Simplicity c. Isolation d. Durability
Which of the following criteria specifically describes the atomicity property? a.) Once transaction changes are done and saved, they cannot be lost. b.) Data used in one transaction cannot be used in another transaction until the first transaction is completed. c.) When a transaction is completed, the database must be in a consistent state. d.) All SQL requests of a transaction must be completed; if not, the transaction must be aborted.
Provide all the SQL statements that are required for the following transactions to be executed. Transaction 01: A residential customer (Bob Builder) of 53 Drip Drive, Dripwater (post code: 1267) has an account with the water company at the same address. The meter was installed on 30th October 2019 and has the serial number DDWC4763. This customer does not have any outstanding balance for the service at this address. Transaction 02: On 23rd July, 2020, the meter at 53 Drip Drive, Dripwater was read by Karen Karpenter (a meter reader). The reading the last time this meter was read was 123580 kL, at this reading it was 123683 kL. The bill was created and sent on the same day. Transaction 03: On 2nd August 2020, Bob Builder settled the account in full for consumption at 53 Drip Drive, Dripwater using PayPal.
Fill in the blank question: Q. Transaction __________________ Unit is Better known as _______________.

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