大约有 45,000 项符合查询结果（耗时：0.0792秒） [XML]
Best way to get identity of inserted row?
...T_CURRENT('tableName') returns the last identity value generated for a specific table in any session and any scope. This lets you specify which table you want the value from, in case the two above aren't quite what you need (very rare). Also, as @Guy Starbuck mentioned, "You could use this if you ...
How to force 'cp' to overwrite directory instead of creating another one inside?
...-- foo
|-- a
`-- b
2 directories, 4 files
You can see the clear difference when you use -v for Verbose.
When you use just -R option.
$ cp -Rv foo/ bar/
`foo/' -> `bar/foo'
`foo/b' -> `bar/foo/b'
`foo/a' -> `bar/foo/a'
$ tree
|-- bar
| |-- a
| |-- b
| `-- foo
| |...
How does the NSAutoreleasePool autorelease pool work?
...
where's the end of the current run loop cycle, if I don't have an loop?
– Thanks
Apr 13 '09 at 7:23
24
...
Identifying and removing null characters in UNIX
...I’d use tr:
tr < file-with-nulls -d '\000' > file-without-nulls
If you are wondering if input redirection in the middle of the command arguments works, it does. Most shells will recognize and deal with I/O redirection (<, >, …) anywhere in the command line, actually.
...
Fastest way to reset every value of std::vector to 0
...guessing is about as fast. I'd use your method.
– Omnifarious
Jan 13 '12 at 10:04
But, jumping to memset is a single i...
Enabling ProGuard in Eclipse for Android
...perties:
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt
if you want to make project-specific modifications, create a proguard-project.txt and change the line to:
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
...
Why does “split” on an empty string return a non-empty array?
...
If you split an orange zero times, you have exactly one piece - the orange.
share
|
improve this answer
|
...
Where does PHP store the error log? (php5, apache, fastcgi, cpanel)
...
PHP stores error logs in /var/log/apache2 if PHP is an apache2 module.
Shared hosts are often storing log files in your root directory /log subfolder.
But...if you have access to a php.ini file you can do this:
error_log = /var/log/php-scripts.log
According to ri...
Compare if two variables reference the same object in python
...
That’s what is is for: x is y returns True if x and y are the same object.
share
|
improve this answer
|
follow
|
...
How do I run a Python program?
...s 'cd' (change directory) and 'dir' (to show files in the directory, to verify your head). For our example something like,
> cd C:\Documents and Settings\Gregg\Desktop\pyscripts
try:
> python first.py
If you get this message:
'python' is not recognized as an
internal or external ...