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Difference between HBase and Hadoop/HDFS
...t type of storage might be more appropriate.HBase stores data in MapFiles (indexed SequenceFiles), and is a good choice if you need to do MapReduce style streaming analyses with the occasional random look up
– Ravindra babu
Jan 21 '16 at 2:34
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Add column with constant value to pandas dataframe [duplicate]
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The reason this puts NaN into a column is because df.index and the Index of your right-hand-side object are different. @zach shows the proper way to assign a new column of zeros. In general, pandas tries to do as much alignment of indices as possible. One downside is that when ...
SQLite UPSERT / UPDATE OR INSERT
I need to perform UPSERT / INSERT OR UPDATE against a SQLite Database.
7 Answers
7
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How to convert xml into array in php?
...gt;";
$p = xml_parser_create();
xml_parse_into_struct($p, $simple, $vals, $index);
xml_parser_free($p);
echo "Index array\n";
print_r($index);
echo "\nVals array\n";
print_r($vals);
share
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improve...
`testl` eax against eax?
...ut to be more canonical. I would write it like I write it, though, and I'm quite particular about how I write things. :-) For example, I'd write je, jz, cmp, and test, and not JE, JZ, CMP, or TEST. I'm picky like that.
– Chris Jester-Young
Dec 9 '16 at 1:12
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How can I force users to access my page over HTTPS instead of HTTP?
...hat's what the apache documentation says... So if I try to access site.com/index.php?page=1&id=12 I will be redirected site.com/index.php
– Rolf
Jul 8 '13 at 13:00
2
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How can I merge two commits into one if I already started rebase?
I am trying to merge 2 commits into 1, so I followed “squashing commits with rebase” from git ready .
11 Answers
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How to add a custom loglevel to Python's logging facility
...another line inside the "debugv" function to check if the logging level in question is actually enabled.
Fixed example that checks if the logging level is enabled:
import logging
DEBUG_LEVELV_NUM = 9
logging.addLevelName(DEBUG_LEVELV_NUM, "DEBUGV")
def debugv(self, message, *args, **kws):
if...
Rails respond_with: how does it work?
...son on all actions
respond_to :html, :json
# Responds to html and json on index and show actions only.
respond_to :html, :json, :only => [:index,:show]
# Responds to html for everything except show, and json only for index, create and update
respond_to :html, :except => [:show]
respond_to :j...
What is the point of Lookup?
... .SelectMany(a => a.GetTypes());
// Grouped by namespace, but indexable
ILookup<string, Type> lookup = allTypes.ToLookup(t => t.Namespace);
foreach (Type type in lookup["System"])
{
Console.WriteLine("{0}: {1}",
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