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How do I delete a fixed number of rows with sorting in PostgreSQL?
...'t change ctids, I don't think. Since that just compacts within each page, and the ctid is just the line number not a page offset. A VACUUM FULL or a CLUSTER operation would change the ctid, but those operations take an access exclusive lock on the table first.
– araqnid
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How to disable/enable the sleep mode programmatically in iOS?
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Thanks for this information. It will come in handy. I was wondering if disabling sleep mode in one app will affect the entire device. Like if I disable it in my app and then exit the app, will it still be disabled after the app exits? Do I need to check whether it's a...
Practicing BDD with python [closed]
Which are the most advanced frameworks and tools there are available for python for practicing Behavior Driven Development? Especially finding similar tools as rspec and mocha for ruby would be great.
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How can I get the actual stored procedure line number from an error message?
When I use SQL Server and there's an error, the error message gives a line number that has no correlation to the line numbers in the stored procedure. I assume that the difference is due to white space and comments, but is it really?
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Format timedelta to string
...answered Feb 11 '09 at 20:52
ParandParand
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When to use in vs ref vs out
...use the parameter keyword out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothetical or code) examples where I should always use...
UITableViewCell, show delete button on swipe
...ton to show when swiping on a UITableViewCell ? The event is never raised and the delete button never appears.
18 Answers
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How should I use Outlook to send code snippets?
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If you are using Outlook 2010, you can define your own style and select your formatting you want, in the Format options there is one option for Language, here you can specify the language and specify whether you want spell checker to ignore the text with this style.
With this style yo...
How to add to an existing hash in Ruby
...ash in Ruby, I'm in the process of working through Apress' Beginning Ruby and have just finished the hashes chapter.
7 Ans...
Using python “with” statement with try-except block
...ated operation, in most cases the IOError should abort the whole operation and so be handled at an outer level. Using with statements, you can get rid of all these try...finally statements at inner levels.
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