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Unix command-line JSON parser? [closed]
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10 Answers
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Generate sql insert script from excel worksheet
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13 Answers
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How do shift operators work in Java? [duplicate]
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214
System.out.println(Integer.toBinaryString(2 << 11));
Shifts binary 2(10) by 11 times t...
Make outer div be automatically the same height as its floating content
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169
You can set the outerdiv's CSS to this
#outerdiv {
overflow: hidden; /* make sure this do...
Can't pickle when using multiprocessing Pool.map()
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How to use shared memory with Linux in C
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166
There are two approaches: shmget and mmap. I'll talk about mmap, since it's more modern and fl...
PHP: How to send HTTP response code?
...TP response line and lets you replace that with a custom one
header("HTTP/1.1 200 OK");
However, this requires special treatment for (Fast)CGI PHP:
$sapi_type = php_sapi_name();
if (substr($sapi_type, 0, 3) == 'cgi')
header("Status: 404 Not Found");
else
header("HTTP/1.1 404 Not Found");...
Counting null and non-null values in a single query
... to get it to work on another RDBMS):
select sum(case when a is null then 1 else 0 end) count_nulls
, count(a) count_not_nulls
from us;
Or:
select count(*) - count(a), count(a) from us;
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EC2 Can't resize volume after increasing size
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