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How to declare variable and use it in the same Oracle SQL script?
... a bind variable. The mechanism for assigning values to a VAR is with an EXEC call:
SQL> var name varchar2(20)
SQL> exec :name := 'SALES'
PL/SQL procedure successfully completed.
SQL> select * from dept
2 where dname = :name
3 /
DEPTNO DNAME LOC
---------- ----------...
ASP.NET MVC 3 Razor - Adding class to EditorFor
... you need to assign the class inside the editor template:
@Html.EditorFor(x => x.Created)
and in the custom template:
<div>
@Html.TextBoxForModel(x => x.Created, new { @class = "date" })
</div>
sha...
$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions
...tp and memcache and in both cases, I get similar errors. This is on MAC OS X 10.7.3 (lion) and I also have XCODE installed on it. I also installed Zend Server community edition before running these commands and have CFLAGS='-arch i386 -arch x86_64' environment variables set. So please help with what...
How to remove item from list in C#?
...
List<T> has two methods you can use.
RemoveAt(int index) can be used if you know the index of the item. For example:
resultlist.RemoveAt(1);
Or you can use Remove(T item):
var itemToRemove = resultlist.Single(r => r.Id == 2);
resultList.Remove(itemToRemove);
When you ar...
Is Ruby pass by reference or by value?
...
Ruby is pass-by-value. No ifs. No buts. No exceptions. If you want to know whether Ruby (or any other language) is pass-by-reference or pass-by-value, just try it out: def foo(bar) bar = 'reference' end; baz = 'value'; foo(baz); puts "Ruby is pass-by-#{baz}".
...
Java Name Hiding: The Hard Way
I have a problem with name hiding that is extremely hard to solve. Here is a simplified version that explains the problem:
...
Opposite of %in%: exclude rows with values specified in a vector
...presented by the letters from A to Z. I want to create a subset D2, which excludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in%
...
Does Haskell require a garbage collector?
...grams, the lifetime of an object can only be determined at runtime.
For example, consider the following program:
main = loop (Just [1..1000]) where
loop :: Maybe [Int] -> IO ()
loop obj = do
print obj
resp <- getLine
if resp == "clear"
then loop Nothing
else loop o...
“Variable” variables in Javascript?
I know it's possible in PHP to have "variable" variables. For example
7 Answers
7
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What is the difference between a string and a byte string?
...t encoding may map the same bytes to a different string:
>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-16')
'蓏콯캁澽苏'
>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-8')
'τoρνoς'
Once you know which one to use, you can use the .decode() method of the b...