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Changing MongoDB data store directory
...your solution but when I am restarting the application it giving following error - 2019-11-18T18:58:45.215+1100 I STORAGE [initandlisten] exception in initAndListen: 28596 Unable to determine status of lock file in the data directory /var/lib/mongo: boost::filesystem::status: Permission denied: "/v...
How to determine programmatically whether a particular process is 32-bit or 64-bit
...tch (Win32Exception ex)
{
if (ex.NativeErrorCode != 0x00000005)
{
throw;
}
}
}
Console.ReadLine();
}
private static bool IsWin64Emulator(this ...
What is the easiest way to make a C++ program crash?
...ry, and is defined as "causing abnormal program termination" (e.g, a fatal error or crash).
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How to force the browser to reload cached CSS/JS files?
I have noticed that some browsers (in particular, Firefox and Opera) are very zealous in using cached copies of .css and .js files, even between browser sessions. This leads to a problem when you update one of these files but the user's browser keeps on using the cached copy.
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Can anyone explain IEnumerable and IEnumerator to me? [closed]
Can anyone explain IEnumerable and IEnumerator to me?
16 Answers
16
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Max or Default?
...nce DefaultIfEmpty isn't implemented in LINQ to SQL, I did a search on the error it returned and found a fascinating article that deals with null sets in aggregate functions. To summarize what I found, you can get around this limitation by casting to a nullable within your select. My VB is a little ...
Oracle SQL: Update a table with data from another table
...n = (select...)
never worked for me since set only expects 1 value - SQL Error: ORA-01427: single-row subquery returns more than one row.
here's the solution:
BEGIN
For i in (select id, name, desc from table1)
LOOP
Update table2 set name = i.name, desc = i.desc where id = i.id;
END LOOP;
END;
...
How do you get git to always pull from a specific branch?
...
I just tried this, and I get the error fatal: Not a valid object name: 'origin/master'. even though origin is a valid remote, and master exists, as per usual, in both repos.
– Ken Williams
Apr 6 '12 at 14:00
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How to define optional methods in Swift protocol?
...st leave empty */
}
}
struct MyStruct: MyProtocol {
/* no compile error */
}
Advantages
No Objective-C runtime is involved (well, no explicitly at least). This means you can conform structs, enums and non-NSObject classes to it. Also, this means you can take advantage of powerful generi...
How can I run dos2unix on an entire directory? [closed]
...d . -type f -exec dos2unix {} /home/venuk/Desktop/NEO_Src and it gave the error find: missing argument to `-exec'
– Vivek Gaur
Aug 13 '12 at 7:05
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