WebRecovery from Deadlock. When a detection algorithm detects that there is a deadlock, the system must be able to recover from the deadlock. The most common solution to recover from the dead-lock situation is to roll back one or more transactions and break the deadlock. Here, three actions are needed to be taken : WebLock granularity. If one application holds a lock on a database object, another application might not be able to access that object. For this reason, row-level locks, which minimize …
Explain multiple granularity working in concurrency control
WebApr 21, 2024 · DBMS Multiple Granularity MCQs: This section contains multiple-choice questions and answers on Multiple Granularity in DBMS. Submitted by Anushree Goswami, on April 21, 2024 . 1. Data items may be ___ based on their granularity. Opened; Locked; Added; Closed; Answer: B) Locked Explanation: Data items may be locked … WebThere are four types of lock protocols available: 1. Simplistic lock protocol. It is the simplest way of locking the data while transaction. Simplistic lock-based protocols allow all the transactions to get the lock on the data before insert or delete or update on it. It will unlock the data item after completing the transaction. can my dog eat black olives
DBMS- Recovery from Deadlock i2tutorials
WebA locking protocol locks the database whenever a transaction wants to access the database. Granularity is the size of data that is allowed to be locked. Multiple … WebIf a DBMS had only database-level lock granularity, and all locks were exclusive, then transactions would necessarily execute serially, with no concurrency d. Field-level locks are the most common type of lock used in modern DBMS, because they afford the highest level of concurrency e. WebDBMS- Lock-Based Protocols; DBMS- Lock-Compatibility Matrix DBMS- Lock-Compatibility Matrix(2) DBMS- Dead-Lock; DBMS- The Two-Phase Locking Reporting; DBMS- Dead-Lock Handling DBMS- Deadlock Detection; DBMS- Recovery from Deadlock; DBMS- Multiple Granularity Locking Protocol; DBMS- Types on Intention Mode Locks; … can my dog eat boiled chicken everyday