大约有 47,000 项符合查询结果（耗时：0.0517秒） [XML]
Rails migration for change column
... needed to change the type of a column:
Step 1:
Generate a new migration file using this code:
rails g migration sample_name_change_column_type
Step 2:
Go to /db/migrate folder and edit the migration file you made. There are two different solutions.
def change
change_column(:table_name,...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...oots.
Otherwise, insert he SD card on your host, and create a magic empty file named ssh file in the boot/ partition.
On Ubuntu hosts, it gets mounted automatically and you can do just:
sudo touch /media/$USER/boot/ssh
which you can confirm with:
lsblk
which contains:
mmcblk0 179:0 0...
How do I REALLY reset the Visual Studio window layout?
...ing up the setting works 100%. Only a small issue: you need to select "all files" when you visualize the list of backupped settings. And the hidden files have to be visible. YES, the saved settings are hidden. This in VS2010.
– Millemila
Jul 15 '15 at 15:07
...
How to complete a git clone for a big project on an unstable connection?
...ged release (see git-bundle(1) manpage). The bundle itself is an ordinary file, which you can download any way, via HTTP/FTP with resume support, via BitTorrent, via rsync, etc. The you can create clone from bundle, fix configuration, and do further fetches from official LibreOffice repository.
...
Strengths of Shell Scripting compared to Python [closed]
...and memory.
Running programs from the shell, redirecting stderr to a log file and that kind of thing is good. Do that in the shell.
Almost everything else can be done more efficiently and more clearly as a Python script.
You need both. However, you should never write a script with if-statement...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...参数－R
7.2编辑环境变量
编辑文件 vim /home/oracle/.bash_profile，添加如下行：
ORACLE_BASE=/mnt/app/oracle
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1
ORACLE_SID=orcl
LD_LIBRARY_PATH=$ORACLE_HOME/lib
PATH=$PATH:$ORACLE_HOME/bin:$HOME/bin
export NLS_LANG=American_Am...
DataSet panel (Report Data) in SSRS designer is gone
...
With a report (rdl) file selected in your solution, select View and then Report Data.
It is a shortcut of Ctrl+Alt+D.
share
|
improve this a...
Archive the artifacts in Jenkins
... Jenkins archiver can use globs (target/*.jar) to easily pick up the right file even if you have a unique name per build.
share
|
improve this answer
|
follow
...
How to remove unreferenced blobs from my git repo
...
A git object is a compressed file or tree or commit in your git repo, including old stuff from the history. git gc clears out unneeded objects. It keeps objects which are still needed for your current repo, and its history.
– Sam ...
How to set environment variable or system property in spring tests?
... This mechanism does not work if changing Log4j2 configuration file property. Seems that Spring anyway is being loaded (and so logging incorrectly) before that static piece of code.
– lucasvc
Mar 13 '19 at 11:35
...