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Difference between CTE and SubQuery?
... You would have to use the profiler and actual execution plan to spot any differences, and that would be specific to your setup (so we can't tell you the answer in full).
In general; A CTE can be used recursively; a sub-query cannot. This makes them especially well suited to tree structures.
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What are the pros and cons of performing calculations in sql vs. in your application
...that scales out; rather than a db server, which scales up)
volume of data (if you need to access/aggregate a lot of data, doing it at the db server will save bandwidth, and disk io if the aggregates can be done inside indexes)
convenience (sql is not the best language for complex work - especially n...
How to verify an XPath expression in Chrome Developers tool or Firefox's Firebug?
How can I verify my XPath?
6 Answers
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What's the difference between emulation and simulation? [duplicate]
In simple understandable terms, what is the difference between the two terms?
10 Answers
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Git log to get commits only for a specific branch
I want to list all commits that are only part of a specific branch.
11 Answers
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Git branching strategy integated with testing/QA process
...op branch on feature we normally don't expect too many conflicts. However, if that's the case the developer can help. This is a tricky step, I think the best way to avoid it is to keep features as small/specific as possible. Different features have to be eventually merged, one way or another. Of cou...
Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
...sent to the screen and the value printed for var is 0, which I guess signifies whether the command ran successfully or not. Is there any way to assign the command output to the variable and also stop it from being displayed on the screen?
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How can you do paging with NHibernate?
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After reading the post about Futures I'm left wondering if I should use Future for all my database queries... What's the drawback? :)
– hakksor
Mar 29 '11 at 10:16
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How can I export tables to Excel from a webpage [closed]
...ne thing it does have limits on, though, is strict formatting of columns.
If formatting and colors are absolute dealbreakers, the only 100% reliable, cross browser method I've found is to use a server-side language to process proper Excel files from your code. My solution of choice is PHPExcel It...
Volatile vs Static in Java
... be one variable for each Object. So, on the surface it seems there is no difference from a normal variable but totally different from static. However, even with Object fields, a thread may cache a variable value locally.
This means that if two threads update a variable of the same Object concurren...