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Mohamad Eskandarane Questions
11022 Questions
State true or false: All the isolation levels disallow dirty writes
Database
2022-07-19
Answers
30
Question
40
Followers
30
0
1
584
___________ allows uncommitted data to be read
Database
2022-07-19
Answers
30
Question
40
Followers
30
0
1
542
________ allows only committed data to be read, but does not require repeatable reads
Database
2022-07-19
Answers
30
Question
40
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30
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1
618
________ allows only committed data to be read and further requires that no other transaction is allowed to update it between two reads of a data item by a transaction
Database
2022-07-19
Answers
30
Question
40
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30
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1
534
State true or false: Serializable level may allow both serializable and non-serializable executions
Database
2022-07-19
Answers
30
Question
40
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30
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573
Which of the following is a transaction isolation level as specified by SQL standard
Database
2022-07-19
Answers
30
Question
40
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30
0
1
558
Which of the following is not a type of a schedule
Database
2022-07-19
Answers
30
Question
40
Followers
30
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1
543
If a schedule is equivalent to a serial schedule, it is called as a _________
Database
2022-07-19
Answers
30
Question
40
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30
0
1
561
The average time for a transaction to be completed after it has been submitted is called as __________
Database
2022-07-19
Answers
30
Question
40
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30
0
1
585
Which of the following are the advantages of transaction concurrency
Database
2022-07-19
Answers
30
Question
40
Followers
30
0
1
553
State true or false: Transactions can only run serially
Database
2022-07-19
Answers
30
Question
40
Followers
30
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1
598
A ___________ is one where, for each pair of transactions Ti and Tj such that Tj reads a data item previously written by Ti , the commit operation of Ti appears before the commit operation of Tj
Database
2022-07-19
Answers
30
Question
40
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30
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537
State true or false: Every cascadeless schedule is also recoverable
Database
2022-07-19
Answers
30
Question
40
Followers
30
0
1
596
Total:
11022
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