大约有 44,000 项符合查询结果（耗时：0.0667秒） [XML]
How to use DISTINCT and ORDER BY in same SELECT statement?
... doesn't work is because of the logical order of operations in SQL, which, for your first query, is (simplified):
FROM MonitoringJob
SELECT Category, CreationDate i.e. add a so called extended sort key column
ORDER BY CreationDate DESC
SELECT Category i.e. remove the extended sort key column again...
'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure
...qlServer.Types
PM> Install-Package Microsoft.SqlServer.Types
Link for more info
share
|
improve this answer
|
follow
|
...
How to apply bindValue method in LIMIT clause?
...
I remember having this problem before. Cast the value to an integer before passing it to the bind function. I think this solves it.
$fetchPictures->bindValue(':skip', (int) trim($_GET['skip']), PDO::PARAM_INT);
...
Understanding Magento Block and Block Type
...
The A is a module's alias. In this case page is short for Mage_Page_Block (it is defined in app/code/core/Mage/Page/etc/config.xml if you want to see).
The B is the class name relative to the alias, initial letters of each word are capitalised. In this case html becomes Html an...
Comparing two dataframes and getting the differences
...
This approach, df1 != df2, works only for dataframes with identical rows and columns. In fact, all dataframes axes are compared with _indexed_same method, and exception is raised if differences found, even in columns/indices order.
If I got you right, you want...
Check whether HTML element has scrollbars
...
I found this somewhere a couple of weeks ago. It worked for me.
var div = document.getElementById('container_div_id');
var hasHorizontalScrollbar = div.scrollWidth > div.clientWidth;
var hasVerticalScrollbar = div.scrollHeight > div.clientHeight;
/* you'll get true/false ...
Adding List.add() another list
...IEnumerable<TravelDetails> and I am trying to add the vales in the for -loop to a List<TravelDetails> . I keep getting the errors.
...
What is the difference between String.Empty and “” (empty string)?
...ast as .Length == 0.
.Length == 0 is the fastest option, but .Empty makes for slightly cleaner code.
See the .NET specification for more information.
share
|
improve this answer
|
...
How do I escape characters in c# comments?
I realized today that I don't know how to escape characters in comments for C#. I want to document a generic C# class, but I can not write a proper example since I don't know how to escape the < and > characters. Do I have to use &lt; and &gt; ? I don't like if that is the case ...
PG::ConnectionBad - could not connect to server: Connection refused
...ch x86_64" gem install pg. I don't know how many other solutions I tried before getting this to work.
– IAmNaN
Oct 20 '14 at 2:52
2
...