Time Transaction T₁ read_item(X); write_item(X); read_item(Y); write_item(Y); Transaction T₂ read_item(Z); read_item(Y); write_item(Y); read_item(X); write_item(X); Transaction T3 read_item(Y); read_item(Z); write_item(Y); write_item(Z);

Q: What does the term "alternate key" mean?

A: TIP : The Relational database design is incomplete without keys.  They're used to define and…

Q: 12. What is a deadlock, and how can you prevent it?

A: A deadlock is a situation in computer science where two or more processes are unable to proceed…

Q: What is the difference between avoiding deadlock and preventing deadlock?

A: INTRODUCTION: A deadlock occurs when two computer programmes that share the same resource…

Q: What are the advantages of rigorous two-phase locking? What are the drawbacks?

A: Introduction: The locks are obtained and released in two steps in a stringent two-phase locking…

Q: Why would you want to use two-phase locking? What exactly does this mean?

A: the given question that is the use of two phase locking and what exactly does this mean is answered…

Q: What is the advantage of strict two-phase locking? What does it have in common with other types of…

A: Introduction: Rigorous two-phase locking provides many benefits over strict two-phase locking.…

Q: Explain the difference between an exclusive lock and a shared lock.

A: Shared locks and Exclusive locks In Database Management System, the locking technique has been used…

Q: What is the benefit of two-phase locking? What consequences will this have?

A: The main benefit of two-phase locking is that it ensures serializability, which means that the…

Q: Explain how a reader-writer lock differs from an“ordinary”lock.

A: In Java, A Lock is a thread synchronization mechanism. It is a tool for controlling access to a…

Q: T1 T2 T3 Read (X) Read ( Y) Read ( Y) Write ( Y) Write (X) Write (X) Read (X) Write ( X ) All the…

A: A transaction schedule is serializable if it's outcome is equal to the outcome of it's transactions…

Q: What are the ways of dealing with deadlock ? a. Deadlock prevention b. Deadlock recovery c. Deadlock…

A: Deadlock Prevention : deadlock prevention is to design the system in such a way that the possibility…

Q: What are two interpretations of the acronym DB4?

A: Introduction: DB stands for Database. A database is a structured collection of data that is…

Q: lock is and wh

A: Shared lock: It is also called a Read-just lock. In a shared lock, the data thing can read by the…

Q: What advantage does two-phase locking provide? What are the repercussions of this?

A: Two-phase locking (2PL) is a concurrency control mechanism used in database management systems to…

Q: Explain the volatile and mutable keywords

A: Question. Explain the volatile and mutable keywords Answer. Volatile keyword: The volatile keyword…

Q: Why is two-phase locking preferable? What kind of effects does this have?

A: Two-phase locking (2PL) is a concurrency control mechanism used in database systems to ensure…

Q: Where can I get further details on protected access specifiers?

A: An access specifier is a keyword used to specify the degree of access for any variables or constants…

Q: What are the 4 requirements for a deadlock to occur? Please explain why each one needs to be present…

A: 1) A deadlock in computer science and operating systems refers to a state where two or more…

Q: Where can I get further details on protected access specifiers?

A: Introduction: The term "access specifiers" is used to specify the degree of access for any variables…

Q: What is the advantage of two-phase locking? What repercussions does this have?

A: Two-phase locking is a concurrency control mechanism used in database management systems to ensure…

Q: Explain the distinction between an explicit and an implicit lock.

A: Given: Explain the distinction between an explicit and an implicit lock.

Q: What's the point of two-phase locking? What will happen because of this?

A: The answer is given below step.

Q: What is the advantage of rigorous two-phase locking? What are the drawbacks as a result?

A: Strict two-phase locking offers the benefits of rigorous two-phase locking. The order of…

Q: How does strict two-phase locking benefit me? What are the drawbacks?

A: Two-Phase Locking -A transaction is said to walk with the Two-Phase Locking convention assuming…

Q: How does strict two-phase locking benefit me? What are the drawbacks?

A: - A database appears to be the ideal answer when you need fast, dependable data access. However, if…

Q: Name three types of triggers

A: There are three types of triggers in SQL Server. DDL Trigger. DML Trigger. Logon Trigger.

Q: What is "two-phase locking" and how does it ensure serializability?

A: "Two-phase locking" is a concurrency control method used in database management systems to ensure…

Q: What exactly is a deadlock? What conditions must exist for a deadlock to occur? Briefly discuss each…

A: Introduction: Foundation This question comes from a computer science paper called Operating System.…

Q: What is the distinction between optimistic and pessimistic locking?

A: Optimistic Locking strategy where you read the record, note the version number (other ways to do…

Q: what are the first three conditions for a deadlock to occur? please no handwritten answers, no one…

A: A deadlock is a one of the  situation in which two computer programs sharing the same resource are…

Q: Is there a difference between preventing deadlock and resolving deadlock?

A: Answer: The main difference between deadlock prevention and deadlock avoidance is that deadlock…

Q: What are the advantages of using two-phase locking? What exactly does this mean?

A: Considerate Two-Phase Locking (2PL)The two-phase locking process (2PL) is a concurrency organize way…

Q: When should you directly address a deadlock? Do not handwrite or react with a single word, phrase,…

A: Deadlock is a challenging scenario in computer science where two or more processes are unable to…

Q: Share the meaning of a deadlock and any personal experience of deadlocks.

A: DEADLOCK:- Deadlock occurs when many processes are awaiting one another. Let's say, for…