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Convert dmesg timestamp to custom date format
... an advantage to a 3-stage pipe to get that path?
– Stabledog
Dec 31 '13 at 15:28
@Stabledog: good question. For an ex...
Strings are objects in Java, so why don't we use 'new' to create them?
... yes, this optimization is possible because strings are immutable and therefore can be shared without problems. the shared "asdf" handling is an implementation of the 'Flyweight' design pattern.
– manuel aldana
Jan 6 '10 at 2:51
...
Can I use CASE statement in a JOIN condition?
...
Instead, you simply JOIN to both tables, and in your SELECT clause,
return data from the one that matches:
I suggest you to go through this link Conditional Joins in SQL Server and T-SQL Case Statement in a JOIN ON Clause
e.g.
SELECT *
FROM sys...
Check if a given key already exists in a dictionary
...
@Mohan Gulati: You understand that a dictionary is a hashtable of keys mapped to values, right? A hashing algorithm converts the key to an integer and the integer is used to find a location in the hash table that matches. en.wikipedia.org/wiki/Hash_table
– hug...
Difference between shared objects (.so), static libraries (.a), and DLL's (.so)?
...c library(.a) is a library that can be linked directly into the final executable produced by the linker,it is contained in it and there is no need to have the library into the system where the executable will be deployed.
A shared library(.so) is a library that is linked but not embedded in the fin...
pull out p-values and r-squared from a linear regression
...d ##R squared values
For gls() generated models:
summary(fit)$tTable[,4] ##P-values
##R-squared values are not generated b/c gls uses max-likelihood not Sums of Squares
To isolate an individual p-value itself, you'd add a row number to the code:
For example to access the p-va...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...dmin
MYSQL_PORT 0
MYSQL_DATABASE mysql
MYSQL_USER_TABLE passwd
MYSQL_CRYPT_PWFIELD crypt
MYSQL_UID_FIELD uid
MYSQL_GID_FIELD gid
MYSQL_LOGIN_FIELD id
MYSQL_HOME_FIELD home
MYSQL_NAME_FIELD name
# MYSQL_MAILDIR_FIELD mai...
Fastest way to check if a file exist using standard C++/C++11/C?
... or C++ way to check for existence, though.
– IInspectable
Sep 9 '13 at 21:32
10
stat() seems to ...
What is the difference between loose coupling and tight coupling in the object oriented paradigm?
...r", CustomerName);
}
}
class Database
{
public void AddRow(string Table, string Value)
{
}
}
Example of loose coupling:
class CustomerRepository
{
private readonly IDatabase database;
public CustomerRepository(IDatabase database)
{
this.database = database;
...
Invoke-WebRequest, POST with parameters
...
Put your parameters in a hash table and pass them like this:
$postParams = @{username='me';moredata='qwerty'}
Invoke-WebRequest -Uri http://example.com/foobar -Method POST -Body $postParams
...