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What does it mean when MySQL is in the state “Sending data”?
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In this state:
The thread is reading and processing rows for a
SELECT statement, and sending data to the client.
Because operations occurring during this this state tend to perform
large amounts of disk access (reads).
That's why it takes more time to complete and so is the lon...
How do I get the localhost name in PowerShell?
...ComputerSystem get Name
Powershell
Get-WMIObject Win32_ComputerSystem | Select-Object -ExpandProperty name
and ...
hostname.exe
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The quest for the Excel custom function tooltip
...{
return v1 + v2;
}
we get both the function description
and when selecting the function, we get argument help
That looks nice, but it's all still very flaky, only works on my machine and sometimes crashes Excel. It might be a start, though...
Update 9 May 2014:
I've made some progre...
What's the best way of structuring data on firebase?
...data and a SQL environment is querying data. There's no simple way to say "SELECT USERS WHERE X = Y", because of the real-time nature of the data (it's constantly changing, sharding, reconciling, etc, which requires a simpler internal model to keep the synchronized clients in check)
A simple exampl...
How to pass parameters correctly?
...king an rvalue reference (CreditCard&&).
Overload resolution will select the former when passing an lvalue (in this case, one copy will be performed) and the latter when passing an rvalue (in this case, one move will be performed).
Account(std::string number, float amount, CreditCard cons...
Flags to enable thorough and verbose g++ warnings
... when you enable a flag that enables multiple warnings, but you want to be selective about it.
– Tamás Szelei
Mar 25 '12 at 22:26
1
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How to escape % in String.Format?
...and I want to use String.Format to build the final string in code. The SELECT statement uses a like, something like this:
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PowerShell: Store Entire Text File Contents in Variable
...and without sub-expressions, for example:
${C:file.txt} = ${C:file.txt} | select -skip 1
I became fascinated by this notation initially because it was very difficult to find out anything about it! Even the PowerShell 2.0 specification mentions it only once showing just one line using it--but with...
How do I get Windows to go as fast as Linux for compiling C++?
...ss to Windows source code, it is rarely taken advantage of). Look at this selection of Unix-related performance papers: http://www.eecs.harvard.edu/margo/papers/ or look up the history of papers by Osterhaus, Henry Spencer, or others. Heck, one of the biggest (and most enjoyable to watch) debates i...
python pip: force install ignoring dependencies
...tools, pip. Setuptools (and pip) has "extras", but they must be explicitly selected and installed by the user.
– shadowtalker
Oct 18 '18 at 19:51
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