大约有 23,000 项符合查询结果(耗时:0.0313秒) [XML]
What is a reasonable length limit on person “Name” fields?
...e Marguerite LaFleche" (39-bytes-length).
– user1154664
Nov 3 '12 at 20:51
...
Where can I set environment variables that crontab will use?
...environment -- not done by cron (usually switches HOME)
. $HOME/.cronfile
base=`basename $0`
cmd=${REAL_HOME:-/real/home}/bin/$base
if [ ! -x $cmd ]
then cmd=${HOME}/bin/$base
fi
exec $cmd ${@:+"$@"}
(Written using an older coding standard - nowadays, I'd use a shebang '#!' at the start.)
The ...
Command-line Tool to find Java Heap Size and Memory Used (Linux)?
...ample output of the VM overview mode:
JvmTop 0.3 alpha (expect bugs) amd64 8 cpus, Linux 2.6.32-27, load avg 0.12
http://code.google.com/p/jvmtop
PID MAIN-CLASS HPCUR HPMAX NHCUR NHMAX CPU GC VM USERNAME #T DL
3370 rapperSimpleApp 165m 455m 109m 176m 0.12% 0.00% S6U37...
Clear file cache to repeat performance testing
...
Works perfectly for me under Windows 7 SP1, x64. Great tip!
– cxxl
Oct 22 '12 at 16:26
2
...
How do you delete a column by name in data.table?
...
@user3969377 if you want to remove a column based on the contents of a character variable you'd simply wrap it in parenthesis. Ie. df[,(afoo):=NULL]
– Dean MacGregor
Jul 9 '15 at 19:26
...
Script entire database SQL-Server
...y I can get a scripting of all tables, procs, and other objects from a database? I know there's an option to script the database but it only gave me some sort of top level script, certainly not a script to create all tables, procs, udfs, .etc.
...
Support for “border-radius” in IE
...t, allowing you to serve different style definitions to different browsers based on their capabilities.
Obviously, these both add more overhead, but with IE9 due to only run on Vista/7 we might be stuck for quite awhile. As of August 2010 Windows XP still accounts for 48% of web client OSes.
...
How do I convert dates in a Pandas data frame to a 'date' data type?
...3-01-02
2 3 2013-01-03
In [32]: df['time'] = df['time'].astype('datetime64[ns]')
In [33]: df
Out[33]:
a time
0 1 2013-01-01 00:00:00
1 2 2013-01-02 00:00:00
2 3 2013-01-03 00:00:00
share
|...
Import regular CSS file in SCSS file?
...NOTE:
It appears this isn't working for everybody. If your interpreter is based on libsass it should be working fine (checkout this). I've tested using @import on node-sass and it's working fine. Unfortunately this works and doesn't work on some ruby instances.
...
How to increase IDE memory limit in IntelliJ IDEA on Mac?
...k like:
-Xms128m
-Xmx2048m
-XX:MaxPermSize=350m
-XX:ReservedCodeCacheSize=64m
-XX:+UseCodeCacheFlushing
-XX:+UseCompressedOops
Copying the original file is important, as options are not added, they are replaced.
This way your custom options will be preserved between updates and application files...