Joined: 23 Nov 2006 Posts: 19270 Location: Inside the Matrix
Are you really saying some program does not always run as expected?
Rather than ask off the wall questions about things that could possibly cause changes/inconsistencies, you will get more useful replies if you post your situation and show your query and the inconsistent output. . .
Joined: 24 Mar 2010 Posts: 61 Location: Cape of Good Hope
To put it very broadly most of the bind parameters determine locking and concurrency.
And yes, a change in isolation level may very well change the output of your program depending on whether the cursor is sensitive or insensitive....whether the same table is accessed twice in the same UOW...you can refer the manuls to get a description of each of these parameters