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Max length for client ip address [duplicate]
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For IPv4, you could get away with storing the 4 raw bytes of the IP address (each of the numbers between the periods in an IP address are 0-255, i.e., one byte). But then you would have to translate going in and out of the DB and that's messy.
IPv6 addresses are 128 bits (as...
Why does git diff on Windows warn that the “terminal is not fully functional”?
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For Git Bash, this can be fixed by adding the following line to ~/.bashrc:
export TERM=cygwin
-or-
export TERM=msys
The first seems to be the original by git for windows, the second a popular known form to "heal" as well.
The problem can be caused if...
how to customize `show processlist` in mysql?
I want to order by Time,but seems no way to do that ?
6 Answers
6
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Java Pass Method as Parameter
I am looking for a way to pass a method by reference. I understand that Java does not pass methods as parameters, however, I would like to get an alternative.
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What is the difference between GitHub and gist?
...site, namely code snippets akin to pastebin. However, everything is driven by git revision control, so gists also have complete revision histories.
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Merge / convert multiple PDF files into one PDF
...ssuming no other pdf exists in that directory and their order is preserved by "*". If its not preserved, using ranges: filename_{0..9}.pdf solves it.
– lepe
Jan 5 '15 at 5:48
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return query based on date
....because javascript's .getTime() returns milliseconds you need to mulitply by 1000 before you use it as input to the new Date() constructor.
db.things.find({
createdAt: {
$gte: new Date(new Date().getTime()-60*5*1000).toISOString()
}
})
.count()
Explanation ...
Git clone without .git directory
...something else entirely. Therefore I suggest your answer could be improved by explicitly specifying the name dirformynewrepo as an argument to the rm command as it will make the connection between both commands much clearer.
– davidA
Aug 22 '18 at 21:32
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What is the meaning of “__attribute__((packed, aligned(4))) ”
...r writes to a memory address, it will do this in word sized chunks (e.g. 4 byte chunks on a 32-bit system). Data alignment means putting the data at a memory offset equal to some multiple of the word size, which increases the system's performance due to the way the CPU handles memory.
To align the ...
Is there documentation for the Rails column types?
...imal numbers stored with precision that varies according to what is needed by your calculations; use these for math that needs to be accurate
See this post for examples and an in-depth explanation on the differences between floats and decimals.
Boolean:
Use to store true/false attributes (i.e. th...