大约有 9,000 项符合查询结果（耗时：0.0367秒） [XML]
What is the difference between SQL, PL-SQL and T-SQL?
...guage to operate on sets.
It is more or less standardized, and used by almost all relational database management systems: SQL Server, Oracle, MySQL, PostgreSQL, DB2, Informix, etc.
PL/SQL is a proprietary procedural language used by Oracle
PL/pgSQL is a procedural language used by PostgreSQL
TSQL i...
Browser detection in JavaScript? [duplicate]
...F 3's issue with not sending the Content-Length header for read-only AJAX POST messages), feature support just doesn't cut it.
– Cobra
Jun 12 '13 at 16:04
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What is the best way to programmatically detect porn images? [closed]
...ones - and porn images tend to have a lot of skin. This will create false positives but if this is a problem you can pass images so detected through actual moderation. This not only greatly reduces the the work for moderators but also gives you lots of free porn. It's win-win.
#!python
import o...
How to prevent SIGPIPEs (or handle them properly)
...use signal handlers in C have many restrictions on what they can do.
The most portable way to do this is to set the SIGPIPE handler to SIG_IGN. This will prevent any socket or pipe write from causing a SIGPIPE signal.
To ignore the SIGPIPE signal, use the following code:
signal(SIGPIPE, SIG_IGN)...
When do I use the PHP constant “PHP_EOL”?
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Yes, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Win...
Sphinx autodoc is not automatic enough
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Where are you supposed to output the files to? I tried outputting them to Sphinx's default _build folder, but running sphinx-build -b html . ./_build doesn't pick them up.
– Cerin
Jan 6 '11 at 18:13
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Fastest way(s) to move the cursor on a terminal command line?
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Since this hasn't been closed yet, here are a few more options.
Use Ctrl+x followed by Ctrl+e to open the current line in the editor specified by $FCEDIT or $EDITOR or emacs (tried in that order).
If you ran the command earlier, hit Ctrl+r for a re...
invalid command code ., despite escaping periods, using sed
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If you are on a OS X, this probably has nothing to do with the sed command. On the OSX version of sed, the -i option expects an extension argument so your command is actually parsed as the extension argument and the file path is interpreted ...
Write string to output stream
...ur OutputStream and then just call it's print(String):
final OutputStream os = new FileOutputStream("/tmp/out");
final PrintStream printStream = new PrintStream(os);
printStream.print("String");
printStream.close();
share
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Difference between WAIT and BLOCKED thread states
...much better because you explained the sequence in which a thread reaches those two states which makes it clearer than just explaining each of the two states in isolation (which is done by "More Than Five"'s answer
– Kumar Manish
Aug 4 '13 at 19:08
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