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How to check if field is null or empty in MySQL?
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end as field1
from tablename
If you only want to check for null and not for empty strings then you can also use ifnull() or coalesce(field1, 'empty'). But that is not suitable for empty strings.
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String concatenation does not work in SQLite
...| operator is "concatenate" - it joins together the two strings of its operands.
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Memcache(d) vs. Varnish for speeding up 3 tier web architecture
I'm trying to speed up my benchmark (3 tier web architecture), and I have some general questions related to Memcache(d) and Varnish.
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How can I use vim to convert my file to utf8?
...set the BOM do this:
:set bomb
For more information :help mbyte-options and :help utf8 and :help bomb.
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JComboBox Selection Change Listener?
...emEvents, though, one for the deselection of the previously selected item, and another for the selection of the new item. Just don't use both event types!
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how to avoid a new line with p tag?
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Span is the same and doesn't go onto a new line! as one.beat.consumer said
– Anicho
Apr 26 '12 at 22:38
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Can angularjs routes have optional parameter values?
Can I set a route with optional params (same template and controller, but some params should be ignored if they don't exist?
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In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?
Both Session.Clear() and Session.Abandon() get rid of session variables. As I understand it, Abandon() ends the current session, and causes a new session to be created thus causing the End and Start events to fire.
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Saving vim macros
...copy/paste registers so you can paste it as normal with the "xp or "xP commands in normal mode.
To save it you open up .vimrc and paste the contents, then the register will be around the next time you start vim.
The format is something like:
let @q = 'macro contents'
Be careful of quotes, though...
How do I get the current Date/time in DD/MM/YYYY HH:MM format?
How can I get the current date and time in DD/MM/YYYY HH:MM format and also increment the month?
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