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How to access environment variable values?
...:\Python. If you want to find out while running python you can do:
import sys
print(sys.prefix)
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How to convert DateTime to VarChar
I am working on a query in Sql Server 2005 where I need to convert a value in DateTime variable into a varchar variable in yyyy-mm-dd format (without time part). How do I do that?
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Why does Decimal.Divide(int, int) work, but not (int / int)?
...tional part. By invoking Decimal.Divide, your int arguments get implicitly converted to Decimals.
You can enforce non-integer division on int arguments by explicitly casting at least one of the arguments to a floating-point type, e.g.:
int a = 42;
int b = 23;
double result = (double)a / b;
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How to convert JSON string to array
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Use json_decode($json_string, TRUE) function to convert the JSON object to an array.
Example:
$json_string = '{"a":1,"b":2,"c":3,"d":4,"e":5}';
$my_array_data = json_decode($json_string, TRUE);
NOTE: The second parameter will convert decoded JSON string into an as...
What does the explicit keyword mean?
...that the compiler can use constructors callable with a single parameter to convert from one type to another in order to get the right type for a parameter.
Here's an example class with a constructor that can be used for implicit conversions:
class Foo
{
public:
// single parameter constructor, can...
How do I turn off Oracle password expiration?
...rd;
Below is a little SQL*Plus script that a privileged user (e.g. user 'SYS') can use to reset a user's password to the current existing hashed value stored in the database.
EDIT: Older versions of Oracle store the password or password-hash in the pword column, newer versions of Oracle store the...
Problem with converting int to string in Linq to entities
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With EF v4 you can use SqlFunctions.StringConvert. There is no overload for int so you need to cast to a double or a decimal. Your code ends up looking like this:
var items = from c in contacts
select new ListItem
{
Value = ...
What's the most efficient way to erase duplicates and sort a vector?
..., vec.end() );
vec.erase( unique( vec.begin(), vec.end() ), vec.end() );
Convert to set (manually)
set<int> s;
unsigned size = vec.size();
for( unsigned i = 0; i < size; ++i ) s.insert( vec[i] );
vec.assign( s.begin(), s.end() );
Convert to set (using a constructor)
set<int> s( ...
How do I read / convert an InputStream into a String in Java?
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Did the toString get deprecated? I see IOUtils.convertStreamToString()
– RCB
Jul 2 at 15:26
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Clear file cache to repeat performance testing
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Use SysInternal's RAMMap app.
The Empty / Empty Standby List menu option will clear the Windows file cache.
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