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 Transaction Locking

Author  Topic 

Non-conformer
Starting Member

14 Posts

Posted - 2006-02-02 : 11:58:55
Let's say I have 2 processes, process "W" and process "R". Process W updates data, but process R only reads data. What is the difference between:
a) putting Serializable isolation on process W only
b) putting Serializable isolation on process R only
c) putting Serializable isolation on BOTH processes


tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2006-02-02 : 13:40:11
Have you checked SQL Server Books Online for this information?

Tara Kizer
aka tduggan
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Non-conformer
Starting Member

14 Posts

Posted - 2006-02-02 : 13:46:05
sure. that's where I got all the info about transactions and locking and isolation levels. But I'm just not getting this one detail.
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tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2006-02-02 : 13:55:34
This is how I understand it:

There is no difference between the 3. All 3 will place a shared lock on the table, row, or data page until the transaction has completed.

Tara Kizer
aka tduggan
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