大约有 18,400 项符合查询结果（耗时：0.0298秒） [XML]
How to find Unused Amazon EC2 Security groups
... find a way to determine orphan security groups so I can clean up and get rid of them. Does anyone know of a way to discover unused security groups.
...
Measure the time it takes to execute a t-sql query
... looked for Sql Profiler doc on how to do this but couldn't find doc that didn't require hours of reading. Can you recommend a "Profiler for Dummies" link?
– TheMoot
Jul 26 '12 at 18:05
...
android image button
...d whatever you want and set the icon as the src.
<ImageButton
android:id="@+id/ImageButton01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/album_icon"
android:background="@drawable/round_button" />
...
HTML form readonly SELECT tag/input
...
You should keep the select element disabled but also add another hidden input with the same name and value.
If you reenable your SELECT, you should copy its value to the hidden input in an onchange event and disable (or remove) the hidden input.
Here is a demo:
$('#mainform').submit(...
How to determine whether a Pandas Column contains a particular value
...s column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matching the missing id df[df...
SQL UPDATE all values in a field with appended string CONCAT not working
...s pretty much all you need:
mysql> select * from t;
+------+-------+
| id | data |
+------+-------+
| 1 | max |
| 2 | linda |
| 3 | sam |
| 4 | henry |
+------+-------+
4 rows in set (0.02 sec)
mysql> update t set data=concat(data, 'a');
Query OK, 4 rows affected (0.01 sec...
How do I toggle an element's class in pure JavaScript?
...'.menu') // Using a class instead, see note below.
menu.classList.toggle('hidden-phone');
As an aside, you shouldn't be using IDs (they leak globals into the JS window object).
share
|
improve thi...
jQuery - selecting elements from inside a element
...
Actually, $('#id', this); would select #id at any descendant level, not just the immediate child. Try this instead:
$(this).children('#id');
or
$("#foo > #moo")
or
$("#foo > span")
...
How to strip all non-alphabetic characters from string in SQL Server?
...
I knew that SQL was bad at string manipulation, but I didn't think it would be this difficult. Here's a simple function to strip out all the numbers from a string. There would be better ways to do this, but this is a start.
CREATE FUNCTION dbo.AlphaOnly (
@String varchar(100...
Routing with Multiple Parameters using ASP.NET MVC
...d we are thinking about using ASP.NET MVC. While designing our API, we decided to use calls like the one below for the user to request information from the API in XML format:
...