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PDO Prepared Inserts multiple rows in single query
...ray_push() to create $insert_values instead of array_merge() resulted in a 100X speed up with execution time of 0.41s.
The problematic array_merge():
$insert_values = array();
foreach($data as $d){
$question_marks[] = '(' . placeholders('?', sizeof($d)) . ')';
$insert_values = array_merge($ins...
How to create a multi-tenant database with shared table structures?
... - No, shouldn't need to place them on separate servers - imagine you have 100s, that is a lot of server instances/licenses you'd need for a start. See Daniel's answer further up, there's some good links in there.
– AdaTheDev
Jun 8 '11 at 10:35
...
Programming with white text on black background?
...ckgrounds are very fatiguing. I have heard it described as "staring into a 100 watt lightbulb" and that's how it feels to me.
Room lighting can potentially have a significant effect also. Brighter rooms may lend themselves to brighter backgrounds, and darker rooms to dark backgrounds. It reduces th...
How to update a git clone --mirror?
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ralphtheninjaralphtheninja
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C# Interfaces. Implicit implementation versus Explicit implementation
...lic keyword...otherwise you will get an error
– jharr100
Nov 18 '14 at 19:30
Jeffrey Richter's CLR via C# 4 ed ch 13 s...
Android: how to draw a border to a LinearLayout
...
Your problem resides clearly in the use of getBorder.set{Width,Height}(100);. Why do you do that in an onClick method?
I need further information to not miss the point: why do you do that programmatically? Do you need a dynamic behavior? Your input drawables are png or ShapeDrawable is acceptable...
Can someone give an example of cosine similarity, in a very simple, graphical way?
...erdam, etc. As said, we can try and imagine the this fancy space for 10 or 100 cities. It's hard to draw, but easy to conceptualize.
I'll wrap up just by saying a few words about the formula itself. As I've said, other references provide good information about the calculations.
First in two dimens...
How can I filter lines on load in Pandas read_csv function?
...t pandas as pd
iter_csv = pd.read_csv('file.csv', iterator=True, chunksize=1000)
df = pd.concat([chunk[chunk['field'] > constant] for chunk in iter_csv])
You can vary the chunksize to suit your available memory. See here for more details.
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Android Camera : data intent returns null
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Awesome ! Thanks a lot for explanation :) +100
– Muhammad Riyaz
Jun 12 '13 at 12:36
Th...
How to get file creation & modification date/times in Python?
...stat('somefile.txt')
>>> statinfo
(33188, 422511L, 769L, 1, 1032, 100, 926L, 1105022698,1105022732, 1105022732)
>>> statinfo.st_size
926L
>>>
In the above example you would use statinfo.st_mtime or statinfo.st_ctime to get the mtime and ctime, respectively.
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