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PostgreSQL LIKE query performance variations
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@nicolas: The comparison depends on many variables. Key length, data distribution, pattern length, possible index only scan ... And most importantly: Postgres version. GIN indexes have been improved substantially in pg 9.4 and 9.5. An the ...
How to measure elapsed time in Python?
...unter or process_time, depending on your requirements. Before 3.3 it was recommended to use time.clock (thanks Amber). However, it is currently deprecated:
On Unix, return the current processor time as a floating point number
expressed in seconds. The precision, and in fact the very definition...
On showing dialog i get “Can not perform this action after onSaveInstanceState”
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This is common issue.
We solved this issue by overriding show() and handling exception in DialogFragment extended class
public class CustomDialogFragment extends DialogFragment {
@Override
public void show(FragmentManager m...
Eclipse - java.lang.ClassNotFoundException
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I've come across that situation several times and, after a lot of attempts, I found the solution.
Check your project build-path and enable specific output folders for each folder. Go one by one though each source-folder of your p...
Dialog throwing "Unable to add window — token null is not for an application” with getApplication()
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Great! Just to comment on that.. you may sometimes need to store "this" globally, (for example) in order to access it within a listener's implemented method who has it's own 'this'. In that case, you'd define "Context context" globally, and...
What is the difference between :focus and :active?
... Related question and the answer, based on this one: stackoverflow.com/a/48597351/5587480. From my point of view, very easy to understand
– john c. j.
Feb 3 '18 at 13:16
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SET NAMES utf8 in MySQL?
... depending on your location and platform.)
Read http://www.joelonsoftware.com/articles/Unicode.html in case you aren't aware how Unicode works.
Read Whether to use "SET NAMES" to see SET NAMES alternatives and what exactly is it about.
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How can I visualize per-character differences in a unified diff file?
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@Hi-Angel You could open Emacs and type M-! to run the command and capture the output in a buffer.
– legoscia
Oct 19 '18 at 11:31
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z-index not working with fixed positioning
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Script to kill all connections to a database (More than RESTRICTED_USER ROLLBACK)
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