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What are the potential problems when a dbms executes multiple transactions concurrently?
When a DBMS executes multiple transactions concurrently, potential problems include lost updates, where one transaction overwrites changes made by another; dirty reads, where a transaction reads uncommitted changes from another; and uncommitted data, leading to inconsistencies if a transaction is rolled back. Additionally, issues like deadlocks can arise, where two or more transactions wait indefinitely for each other to release locks. These problems can compromise data integrity and consistency, necessitating robust concurrency control mechanisms.
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How do servlet handle multiple simultaneous requests?
Servlets handle multiple simultaneous requests through a multi-threaded model provided by the Java Servlet API. When a servlet is deployed, the servlet container creates a separate thread for each incoming request, allowing multiple requests to be processed concurrently. This means that each request can be handled independently, with the servlet's service method being invoked in a separate thread for each request. However, developers must ensure thread safety when accessing shared resources to prevent data inconsistencies or conflicts.
Can 2 be a multiple of 8?
No, 8 is a multiple of 2, since it is 4 x2, but 2 is less than 8 so it can't be a multiple.
Are multiples of 9 also multiples of 3?
yes, every multiple of 9 is a multiple of 3, but that doesn't cover all of them ...there are more multiples of 3 besides those.
Which paper is multiple choice for cxc?
paper 1
What does multiple burden mean?
Burden can mean different things, like a heavy load or a harship. Multiple burden means that there would be more than one load to carry, or more than one, probably many, hardships a person was experiencing.
What allows multiple websites to be open concurrently?
a tabs can allows multiples web sites to be open concurrently.
What is concurrent execution of transaction in dbms?
Concurrent Execution in DBMSDatabase Management systems usually allow multiple transaction to run concurrently even though it causes a lot of complications with consistency of data. Ensuring consistency when multiple transactions execute concurrently, requires extra effort. It is much simpler to allow only one transaction to run at a time but concurrent execution of transactions has its own advantages: Improved throughput and resource utilization :Concurrent execution means that CPU doesn't have to be idle while it is waiting for I/O activity to complete. This is because transactions can run in parallel on CPU along with I/O activities. This means that resources can be utilized effectively by having multiple transaction run concurrently.Less waiting time : Without concurrency, a short transaction might need to wait for a long transaction to finish causing delay in its execution. With multiple transactions running on the system, new transactions have to wait for less time before getting executed.
What is concurrent schedule in dbms?
A concurrent schedule in DBMS refers to multiple transactions running concurrently without interfering with each other. This allows for improved performance and efficiency in handling multiple operations simultaneously. However, it requires careful management to ensure data consistency and avoid conflicts such as race conditions.
How do you use concurrently in a sentence?
I can work on multiple tasks concurrently to maximize efficiency.
What are the disadvantages of remote data object?
Some disadvantages of remote data objects include potential for slower data retrieval due to network latency, increased security risks when transmitting data over networks, and the potential for data inconsistency if multiple clients are accessing and modifying the same object concurrently.
How database provide informatiom to multiple users?
Databases allow multiple users to access information simultaneously through features such as user permissions and concurrent access control. Each user is granted specific levels of access to the data, ensuring data integrity and security while allowing for collaboration and sharing of information. Additionally, databases can handle multiple queries and transactions at the same time, allowing various users to interact with the data concurrently.
Can a Rockford Fosgate subwoofer be powered by a Sony Xplode Amplifier?
Yes -- multiple brands can be used concurrently in the same system.
What is the statute of limitation for crimes used in a multiple bill in a criminal case?
In a multiple indictment (i.e.: all crimes were committed concurrently) - the SOL will be governed by the most serious offense.
Can hyperterminal in windows XP used for two com ports concurrently?
Not in the same session. However. multiple instances of HyperTerminal can be opened.
Using the order management high level task how do you match multiple transactions to a single order?
Using the order management high level task, you match multiple transactions to a single order by search and selecting an order, then searching and selecting matching transactions.
Why do transactions disappear and then reappear?
Transactions can disappear and reappear due to temporary technical issues or delays in processing. This can happen when there are glitches in the system or when transactions are being verified by multiple parties.
What a thread executes?
A thread can do anything a regular class does. However, the idea of having multiple threads is so that the computer can do several things simultaneously.
