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How do you list the primary key of a SQL Server table?
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Actually, I believe you have to also constrain by Schema, right? So, you'd need to add "And COL.TABLE_SCHEMA = '<your schema name>'" as well.
– DavidStein
May 17 '13 at 15:56
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MSysGit vs. Git for Windows
... and
netinstall. Further, msysGit does not
install to C:\Program Files by
default. But msysGit comes with gcc,
the GNU C Compiler.
So, the difference between the two projects:
msysGit is the msys+mingw environment + everything needed to compile Git yourself, on Windows.
Git for Windows i...
Replace a value in a data frame based on a conditional (`if`) statement
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that doesn't work on the data as created by @Kenny because the data are factors. Did you forget a step or do you have the global setting to stop converting characters to factors?
– Gavin Simpson
Apr 28 '11 at 20:27
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Prevent browser caching of AJAX call result
... downvote only because it's cleaner to let jQuery do this as in the answer by Peter J. Your solution will work, but is more difficult to maintain in the long run.
– Niklas Wulff
Jan 13 '11 at 12:46
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What's the difference between '$(this)' and 'this'?
...s going to be in the first element.
$("#myDiv")[0] === document.getElementById("myDiv");
And so on...
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How to debug .htaccess RewriteRule not working
...to your .htaccess
e.g. foo bar, sakjnaskljdnas
any keyword not recognized by htaccess
and visit your URL. If it is working, you should get a
500 Internal Server Error
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your re...
Haskell: Lists, Arrays, Vectors, Sequences
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Lists Rock
By far the most friendly data structure for sequential data in Haskell is the List
data [a] = a:[a] | []
Lists give you ϴ(1) cons and pattern matching. The standard library, and for that matter the prelude, is full of u...
How to test an SQL Update statement before running it?
... mandatory anyway) you can also do a sanity check which rows are affected by running a select using the same WHERE clause as the UPDATE.
So if you UPDATE is
UPDATE foo
SET bar = 42
WHERE col1 = 1
AND col2 = 'foobar';
The following will show you which rows will be updated:
SELECT *
FROM fo...
How to write a scalable Tcp/Ip based server
... required relatively little resources. Anything that does occur is handled by the .net thread pool.
I wrote it as a class that manages all connections for the servers.
I simply used a list to hold all the client connections, but if you need faster lookups for larger lists, you can write it howeve...
What is time_t ultimately a typedef to?
...-disk data structure may happen. However, since filesystems are often read by other operating systems, it'd be silly to define the filesystem based on such implementation-dependent types. For example, the same filesystem might be used on both 32-bit and 64-bit systems, and time_t might change size. ...