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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
...e new server, consider running:
./analyze_new_cluster.sh
Running this script will delete the old cluster's data files:
./delete_old_cluster.sh
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Is there a REAL performance difference between INT and VARCHAR primary keys?
...) ENGINE=InnoDB;
Then, I filled 10 million rows in each table with a PHP script whose essence is like this:
$pdo = get_pdo();
$keys = [ 'alabam', 'massac', 'newyor', 'newham', 'delawa', 'califo', 'nevada', 'texas_', 'florid', 'ohio__' ];
for ($k = 0; $k < 10; $k++) {
for ($j = 0; $j <...
CSS @media print issues with background-color;
...ht in the regular css declaration works (not even in the @media print)
Use svg
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How do I drag and drop files into an application?
...me a big "No symbol" like this en.wikipedia.org/wiki/File:ProhibitionSign2.svg . Then I saw this answer and ran VS as a non-admin and presto it works! Thanks a million.
– Derek W
Jun 3 '13 at 18:09
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Is it worth using Python's re.compile?
... out of setup? It's all about where you want to measure. If I run a python script numerous times, it would have the import re time hit. When comparing the two it is important to separate the two lines for timing. Yes as you say it is when you will have the time hit. The comparison shows that either ...
When to use MongoDB or other document oriented database systems? [closed]
...rking with object code, I don't need an ORM). Sure you have to write a few scripts, but actually it is not that hard and you reuse code
– Aki
Apr 3 '13 at 11:34
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Confused about stdin, stdout and stderr?
..., note that /dev/stdin is a symlink to /proc/self/fd/0 -- the first file descriptor that the currently running program has open. So, what is pointed to by /dev/stdin will change from program to program, because /proc/self/ always points to the 'currently running program'. (Whichever program is doing...
How do I expand the output display to see more columns of a pandas DataFrame?
Is there a way to widen the display of output in either interactive or script-execution mode?
19 Answers
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403 Forbidden vs 401 Unauthorized HTTP responses
...s ranges or files in my webroot that I don't want direct access to (i.e. a script must serve them).
– Kyle
May 9 '13 at 13:20
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Take a screenshot of a webpage with JavaScript?
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wonder if SVG would help, might have to look at Google's source
– Luke Stanley
Jul 12 '11 at 17:14
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