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ORA-00979 not a group by expression
... result would you expect - A or B? Or should the database return more than one row, violating the contract of GROUP BY?
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C# Events and Thread Safety
... comment about the "standard" advice being pre-C#2, and I'm not hearing anyone contradicting that. Unless it is really expensive to instantiate your event args, just put '= delegate {}' on the end of your event declaration and then call your events directly as if they are methods; never assign null ...
Distinct by property of class with LINQ [duplicate]
...arzi: There is a bit of overhead, as the groups are created, and then only one item from each group is used.
– Guffa
Dec 24 '13 at 11:17
12
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Add default value of datetime field in SQL Server to a timestamp
...eady have the field, but I wanted to apply the fix to it, not create a new one. Thanks for all your answers!
– stephmoreland
Feb 3 '11 at 16:06
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IntelliJ show JavaDocs tooltip on mouse over
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Can anyone comment on why this isn't enabled by default? I thought that IntelliJ simply didn't have the feature. It should be opt-out, enabled by default.
– Naftuli Kay
Aug 29 '14 at 18:46
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MVC 4 @Scripts “does not exist”
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There was one small step missing from the above, which I found on another post. After adding
<add namespace="System.Web.Optimization" />
to your ~/Views/web.config namespaces, close and re-open Visual Studio. This is what I...
Get unique values from a list in python [duplicate]
...hy lists have '.append' and sets have '.add' ??
– Antonello
Jan 28 '14 at 11:05
41
"append" means...
How to search a Git repository by commit message?
... your history, check the reflog as your safety net. Look for Build 0051 in one of the commits listed by
git reflog
You may have simply set your HEAD to a part of history in which the 'Build 0051' commit is not visible, or you may have actually blown it away. The git-ready reflog article may be o...
JavaScript and Threads
...onous in JavaScript
Before HTML5 JavaScript only allowed the execution of one thread per page.
There was some hacky way to simulate an asynchronous execution with Yield, setTimeout(), setInterval(), XMLHttpRequest or event handlers (see the end of this post for an example with yield and setTimeo...
Catch a thread's exception in the caller thread in Python
...s there is in the context of the child thread, and it is in its own stack. One way I can think of right now to communicate this information to the parent thread is by using some sort of message passing, so you might look into that.
Try this on for size:
import sys
import threading
import Queue
c...