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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 Em>X m>EC call:
SQL> var name varchar2(20)
SQL> em>x m>ec :name := 'SALES'
PL/SQL procedure successfully completed.
SQL> select * from dept
2 where dname = :name
3 /
DEPTNO DNAME LOC
---------- ----------...
$PHP_AUTOCONF errors on mac os m>x m> 10.7.3 when trying to install pecl em>x m>tensions
...tp and memcache and in both cases, I get similar errors. This is on MAC OS m>X m> 10.7.3 (lion) and I also have m>X m>CODE installed on it. I also installed Zend Server community edition before running these commands and have CFLAGS='-arch i386 -arch m>x m>86_64' environment variables set. So please help with what...
Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
...ely with unpredictable results, to behaving during translation or program em>x m>ecution in a documented manner characteristic of the environment (with or without the issuance of a diagnostic message), to terminating a translation or em>x m>ecution (with the issuance of a diagnostic message).[...]
Although ...
How to remove item from list in C#?
...
List<T> has two methods you can use.
RemoveAt(int indem>x m>) can be used if you know the indem>x m> of the item. For em>x m>ample:
resultlist.RemoveAt(1);
Or you can use Remove(T item):
var itemToRemove = resultlist.Single(r => r.Id == 2);
resultList.Remove(itemToRemove);
When you ar...
Opposite of %in%: em>x m>clude rows with values specified in a vector
...presented by the letters from A to Z. I want to create a subset D2, which em>x m>cludes some values, say, B, N and T. Basically, I want a command which is the opposite of %in%
...
Java Name Hiding: The Hard Way
I have a problem with name hiding that is em>x m>tremely hard to solve. Here is a simplified version that em>x m>plains the problem:
...
Is Ruby pass by reference or by value?
...
Ruby is pass-by-value. No ifs. No buts. No em>x m>ceptions. 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}".
...
“Variable” variables in Javascript?
I know it's possible in PHP to have "variable" variables. For em>x m>ample
7 Answers
7
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git undo all uncommitted or unsaved changes
...dd:
git reset
This will revert all local uncommitted changes (should be em>x m>ecuted in repo root):
git checkout .
You can also revert uncommitted changes only to particular file or directory:
git checkout [some_dir|file.tm>x m>t]
Yet another way to revert all uncommitted changes (longer to type, but...
What em>x m>actly does an #if 0 … #endif block do?
...
Not only does it not get em>x m>ecuted, it doesn't even get compiled.
#if is a preprocessor command, which gets evaluated before the actual compilation step. The code inside that block doesn't appear in the compiled binary.
It's often used for temporaril...