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How to log PostgreSQL queries?
... /var/lib/pgsql/9.2/data/pg_log/
The log files tend to grow a lot over a time, and might kill your machine. For your safety, write a bash script that'll delete logs and restart postgresql server.
Thanks @paul , @Jarret Hardie , @Zoltán , @Rix Beck , @Latif Premani
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What's the best way to generate a UML diagram from Python source code? [closed]
...the general case, it can't be done. Python objects can be extended at run time, and objects of any type can be assigned to any instance variable. Figuring out what classes an object can contain pointers to (composition) would require a full understanding of the runtime behavior of the program.
Py...
JavaScript before leaving the page
... Is there anyway to know when it is refresh vs when its first time?
– Si8
Jan 13 '17 at 0:00
When a user ...
Android Fragment lifecycle over orientation changes
...tivity when it's recreated. This is a massive pain in the rear most of the time.
You can stop errors occurring by using the same Fragment rather than recreating a new one. Simply add this code:
if (savedInstanceState == null) {
// only create fragment if activity is started for the first time
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Fast stable sorting algorithm implementation in javascript
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Note: Array#shift may workn in O(n) time and so your merge in O(n*n).
– 4esn0k
Mar 14 '16 at 4:58
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Targeting both 32bit and 64bit with Visual Studio in same solution/project
...tup launcher to extract the right version and do the required fixups at runtime) very, very well.
You can probably achieve the same results using other tools or the Windows Installer XML (WiX) toolset, but Advanced Installer makes things so easy (and is quite affordable at that) that I've never re...
C++ SFINAE examples?
... it was reported (see N4502) that it is measurably more efficient (compile-time and compiler memory consumption) than previous approaches.
Here is a live example, which includes portability tweaks for GCC pre 5.1.
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Do interfaces inherit from Object class in java
... that you have a class that is a subtype of employee.
The JVM will do runtime checking for your code (i.e. throw NullPointerException).
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Default string initialization: NULL or Empty? [closed]
... You're right, my last assertion was not clear enough. Most times, my database columns are NOT NULL (because there would be no difference bewteen the meaning of empty string and NULL), so I attempt to keep my strings similar by never storing null in them, and that is what I meant.
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deleting rows in numpy array
... @arturomp but the mask is nondestructive. Is a call to delete() time/memory consuming?
– Nathan
Mar 28 '18 at 18:19
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