大约有 40,000 项符合查询结果(耗时:0.0696秒) [XML]
Ruby on Rails: How can I revert a migration with rake db:migrate?
...to revert.
eg. if you want to revert a migration with file name 3846656238_create_users.rb
rake db:migrate:down VERSION=3846656238
share
|
improve this answer
|
follow
...
How to find day of week in php in a specific timezone
...
Another quick way:
date_default_timezone_set($userTimezone);
echo date("l");
share
|
improve this answer
|
follow
...
Make an image width 100% of parent div, but not bigger than its own width
...
If the image is smaller than parent...
.img_100 {
width: 100%;
}
share
|
improve this answer
|
follow
|
...
Take a screenshot of a webpage with JavaScript?
... to build the control in VB6 to take the screenshot. I had to use the keybd_event API call because SendKeys can't do PrintScreen. Here's the code for that:
Declare Sub keybd_event Lib "user32" _
(ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
Public Const...
Storing Data in MySQL as JSON
.... And, so, I've never done it. Then I saw that FriendFeed did this and actually made their DB scale better and decreased latency. I'm curious if I should do this. And, if so, what's the right way to do it?
...
Set a path variable with spaces in the path in a Windows .cmd file or batch file
...
this should be the accepted answer. for some reason, calling set from an if block doesn't work if the value has a space and is unquoted.
– Kevin
Aug 1 '19 at 16:35
...
Is there a naming convention for MySQL?
...work that you might want to carry out. For example you might just want to call an index foo_bar_idx1 or foo_idx1 - totally up to you but worth considering.
Singular vs Plural Column Names
It might be a good idea to address the thorny issue of plural vs single in your column names as well as your t...
How to clear Facebook Sharer cache?
...the URL of the page you want to share, and click "debug". It will automatically extract all the info on your meta tags and also clear the cache.
share
|
improve this answer
|
...
Is there an easy way to add a border to the top and bottom of an Android View?
...so see this solution, which also works for TextViews, if you want a border all around: stackoverflow.com/questions/3263611/…
– emmby
Dec 9 '10 at 20:09
26
...
invalid byte sequence for encoding “UTF8”
... the iconv utility to change encoding of the input data.
iconv -f original_charset -t utf-8 originalfile > newfile
You can change psql (the client) encoding following the instructions on Character Set Support. On that page, search for the phrase "To enable automatic character set conversion".
...