大约有 42,000 项符合查询结果（耗时：0.0501秒） [XML]
How to set a default value for an existing column
...in SQL Server:
ALTER TABLE Employee ADD CONSTRAINT DF_SomeName DEFAULT N'SANDNES' FOR CityBorn;
share
|
improve this answer
|
follow
|
...
Can you change a path without reloading the controller in AngularJS?
It's been asked before, and from the answers it doesn't look good. I'd like to ask with this sample code in consideration...
...
Why doesn't await on Task.WhenAll throw an AggregateException?
...nto the actual exception.
So, in catch block, you get the actual exception and not the aggregated one. This helps us write more natural and intuitive code.
This was also needed for easier conversion of existing code into using async/await where the a lot of code expects specific exceptions and not a...
How to trim whitespace from a Bash variable?
...
Let's define a variable containing leading, trailing, and intermediate whitespace:
FOO=' test test test '
echo -e "FOO='${FOO}'"
# > FOO=' test test test '
echo -e "length(FOO)==${#FOO}"
# > length(FOO)==16
How to remove all whitespace (denoted by [:space:] in tr):
F...
How do I get an animated gif to work in WPF?
...Gif
You can install it with NuGet
PM> Install-Package WpfAnimatedGif
and to use it, at a new namespace to the Window where you want to add the gif image and use it as below
<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http:...
Turning off “created by” stamp when generating files in IntelliJ
...
In IntelliJ 13 and above it is in the File and Code Templates area of the settings dialog. In Idea 15+ you can get there by typing ctrl+shift+A on windows or cmd+shift+A on osx and then typing Include Templates in the popup action search di...
MySQL ON DUPLICATE KEY - last insert id?
...QL documentation example:
If a table contains an AUTO_INCREMENT column and INSERT ... UPDATE inserts a row, the LAST_INSERT_ID() function returns the AUTO_INCREMENT value. If the statement updates a row instead, LAST_INSERT_ID() is not meaningful. However, you can work around this by using LAST_...
Word-wrap in an HTML table
I've been using word-wrap: break-word to wrap text in div s and span s. However, it doesn't seem to work in table cells. I have a table set to width:100% , with one row and two columns. Text in columns, although styled with the above word-wrap , doesn't wrap. It causes the text to go past the ...
ruby 1.9: invalid byte sequence in UTF-8
... writing a crawler in Ruby (1.9) that consumes lots of HTML from a lot of random sites.
When trying to extract links, I decided to just use .scan(/href="(.*?)"/i) instead of nokogiri/hpricot (major speedup). The problem is that I now receive a lot of " invalid byte sequence in UTF-8 " errors.
...
CKEditor automatically strips classes from div
...t sees fit whenever I press the source button. For example if I hit source and create a <div> ...
13 Answers
...