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In SQL, what's the difference between count(column) and count(*)?
...ue on the rows.
Please see following code for test executions SQL Server 2008:
-- Variable table
DECLARE @Table TABLE
(
CustomerId int NULL
, Name nvarchar(50) NULL
)
-- Insert some records for tests
INSERT INTO @Table VALUES( NULL, 'Pedro')
INSERT INTO @Table VALUES( 1, 'Juan')
INSER...
Rails DB Migration - How To Drop a Table?
...ill there until you run rails destroy model User
– gm2008
Jul 13 '14 at 12:29
2
Only run this if ...
TDD/BDD screencast/video resources [closed]
... creating the shunting yard algorithm in C# using Resharper, Visual Studio 2008 and TDD.
Shunting Yard Algorithm in C#, Part 1
Shunting Yard Algorithm in C#, Part 2
Shunting Yard Algorithm in C#, Part 3
Shunting Yard Algorithm in C#, Part 4
Getting Rid Of Those Damn Spaces, (Part 5 of 4)
Removing ...
How do I log errors and warnings into a file?
...tmp/php-error.log
Or update php.ini as described in this blog entry from 2008.
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How random is JavaScript's Math.random?
...browsers and Cross-domain information
leakage and attacks" by Amid Klein (2008). It's no stronger than typical Java or Windows built-in PRNG functions.
On the other hand, implementing SFMT of the period 2^19937-1 requires 2496 bytes of the internal state maintained for each PRNG sequence. Some peo...
Copy files without overwrite
...duced as a standard feature of Windows Vista, Windows 7 and Windows Server 2008.
robocopy c:\Sourcepath c:\Destpath /E /XC /XN /XO
To elaborate (using Hydrargyrum, HailGallaxar and Andy Schmidt answers):
/E makes Robocopy recursively copy subdirectories,
including empty ones.
/XC exclud...
How to extract an assembly from the GAC?
...
The method described here is very easy:
http://andreasglaser.net/post/2008/08/05/Extract-assembly-from-Global-Assembly-Cache-(GAC)-with-network-drive-mapping.aspx
Summary from Article:
Map a Network Drive (Explorer -> Tools)
Map to \servername\folder (\\YourServer\C$\Windows\Assembly)
...
How do you format an unsigned long long int using printf?
...
Works for me in VS2008. Moreover, as far as I remember the MS C Compiler (when set up to compile straight C) is supposed to be C90 compliant by design; C99 introduced some things that not everyone liked.
– スーパーフ...
Python “extend” for a dictionary
...ricky (keyword is kwargs). Here is a nice explanation: saltycrane.com/blog/2008/01/…
– johndodo
Mar 27 '13 at 10:37
...
How do you determine what technology a website is built on? [closed]
...
@shababhsiddique: Back in 2008 it could.
– Kim Stebel
Oct 8 '13 at 19:48
...