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CompTIA Exam DS0-001 Topic 3 Question 23 Discussion

Actual exam question for CompTIA's DS0-001 exam
Question #: 23
Topic #: 3
[All DS0-001 Questions]

Which of the following resources is the best way to lock rows in SQL Server?

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Suggested Answer: C

The resource that is the best way to lock rows in SQL Server is RID. RID, or Row IDentifier, is an attribute that uniquely identifies each row in a heap table in SQL Server. A heap table is a table that does not have a clustered index, which means that the rows are not stored in any particular order. A RID consists of the file number, page number, and slot number of the row in the database. A RID can be used to lock rows in SQL Server to prevent concurrent access or modification by other transactions or users. A RID lock is a type of lock that locks a single row using its RID. A RID lock can be applied using theHOLDLOCKorXLOCKhints in aSELECTstatement. The other options are either not related or not effective for this purpose. For example, TID, or Transaction IDentifier, is an attribute that uniquely identifies each transaction in a database; SID, or Security IDentifier, is an attribute that uniquely identifies each user or group in a Windows system; PID, or Process IDentifier, is an attribute that uniquely identifies each process in an operating system.Reference:CompTIA DataSys+ Course Outline, Domain 3.0 Database Management and Maintenance, Objective 3.3 Given a scenario, implement database concurrency methods.


by Novella at Aug 02, 2024, 10:21 AM

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Salina
3 months ago
RID all the way! It's the primary key for each row, so it's gotta be the best way to lock them down. Unless the answer is 'All of the above' and I can use them all. *wink wink*
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Rolland
3 months ago
SID? What is this, Active Directory? I'm sticking with RID. It's the only option that makes sense for this SQL Server question.
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Arlene
4 months ago
Hmm, I'm not sure about this one. I'll have to go with my gut and say TID. It just sounds like the right way to lock rows, you know?
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Crista
3 months ago
I'm not sure, but I'll go with D) PID.
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Kristofer
3 months ago
I'm leaning towards C) RID actually.
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Elvera
3 months ago
I think TID is the way to go.
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Isadora
4 months ago
I personally prefer using PID for locking rows, as it allows for better control and management.
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Lavonna
4 months ago
PID? Really? That's for process IDs, not for locking rows. I'm going with C - RID.
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Dahlia
4 months ago
But RID provides a unique identifier for each row, making it a better choice for locking.
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Fredric
4 months ago
I disagree, I believe using TID is more efficient for locking rows.
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Carin
4 months ago
I think RID is the best way to lock rows in SQL Server. It's a unique identifier for each row, so it should do the job.
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Gregg
4 months ago
I think TID might be a better option for locking rows in SQL Server.
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Catina
4 months ago
I agree, using RID to lock rows in SQL Server is a good choice.
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Dahlia
4 months ago
I think the best way to lock rows in SQL Server is using RID.
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