大约有 31,500 项符合查询结果（耗时：0.0415秒） [XML]
SQL Server: SELECT only the rows with MAX(DATE)
... HAVING t1.DateEntered = MAX(t2.DateEntered))
This is the fastest of all the queries supplied above. The query cost came in at 0.0070668.
The preferred answer above, by Mikael Eriksson, has a query cost of 0.0146625
You may not care about the performance for such a small sample, but in large...
How to cherry-pick from a remote branch?
...ince "zebra" is a remote branch, I was thinking I don't have its data
locally.
You are correct that you don't have the right data, but tried to resolve it in the wrong way. To collect data locally from a remote source, you need to use git fetch. When you did git checkout zebra you switched to wh...
Why does sudo change the PATH?
...
Yeah, but it's totally counterintuitive. It probably fools the good guys more than the bad guys.
– Brian Armstrong
Jun 20 '09 at 2:24
...
Rails: How to get the model class name based on the controller class name?
...ntroller
def index
# Equivalent of @house_buyers = HouseBuyer.find(:all)
objects = controller_name.classify.constantize.find(:all)
instance_variable_set("@#{controller_name}", objects)
end
end
share
...
How to open the Google Play Store directly from my Android application?
...lock here because an Exception will be thrown if the Play Store is not installed on the target device.
NOTE: any app can register as capable of handling the market://details?id=<appId> Uri, if you want to specifically target Google Play check the Berťák answer
...
When is it acceptable to call GC.Collect?
The general advise is that you should not call GC.Collect from your code, but what are the exceptions to this rule?
24 An...
What is the difference between --save and --save-dev?
...
This answer is frustratingly vague. Even a small example would go a long way to helping make this clearer.
– Choylton B. Higginbottom
Oct 31 '17 at 17:45
...
How do I convert from BLOB to TEXT in MySQL?
... great for those GROUP_CONCATs that convert your output to blobs and you really want them as strings. I had an issue similar to the OP's while using Node.JS with the node-mysql library - this fixed all group_concat issues.
– marksyzm
Jul 26 '13 at 13:53
...
In Windows Azure: What are web role, worker role and VM role?
... to host the application in Windows Azure, so I created a web role. I actually want to know what these roles are for. What is their significance coding wise or storage wise?
...
Move branch pointer to different commit without checkout
...ointer of a not-checked out branch to point at a different commit (keeping all other stuff like tracked remote branch)?
10 ...