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Is there any difference between __DIR__ and dirname(__FILE__) in PHP?
...). This
directory name does not have a
trailing slash unless it is the root
directory. (Added in PHP 5.3.0.)
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How to request a random row in SQL?
...andom row from a database table. It goes through methods for doing this in MySQL, PostgreSQL, Microsoft SQL Server, IBM DB2 and Oracle (the following is copied from that link):
Select a random row with MySQL:
SELECT column FROM table
ORDER BY RAND()
LIMIT 1
Select a random row with PostgreSQL:
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What's the best way to store co-ordinates (longitude/latitude, from Google Maps) in SQL Server?
...
I don't know the answer for SQL Server but...
In MySQL save it as FLOAT( 10, 6 )
This is the official recommendation from the Google developer documentation.
CREATE TABLE `coords` (
`lat` FLOAT( 10, 6 ) NOT NULL ,
`lng` FLOAT( 10, 6 ) NOT NULL ,
) ENGINE = MYISAM ;
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How to read a single character from the user?
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Tested on Win10 + Python 3.5： ERROR:root:'in <string>' requires string as left operand, not bytes Traceback (most recent call last): File "..\main.py", line 184, in wrapper result = func(*args, **kwargs) File "C:\GitHub\Python-Demo\demo\day_hello....
NodeJS require a global module/package
...ively instead of a static path, i.e. if you are using NVM: NODE_PATH=$(npm root -g)
– holmberd
May 30 '19 at 14:05
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Why are Oracle table/column/index names limited to 30 characters?
... can be extremely painful when doing migration projects from SQL Server or MySQL to Oracle. In Oracle Database 12cR2, the maximum length of most identifiers is now 128 characters.
This is a new feature in 12.2, according to (http://blog.dbi-services.com/oracle-12cr2-long-identifiers/). According t...
How can I setup & run PhantomJS on Ubuntu?
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On ubuntu 18.04 I get an error, that I should run it as root. With sudo it works: sudo npm install -g phantomjs-prebuilt
– rubo77
Jul 24 '18 at 17:04
add a ...
Npm install failed with “cannot run in wd”
...pm install .
So when I try npm install , it says that I need to run it as root or adminisrator:
5 Answers
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Is it possible to get the non-enumerable inherited property names of an object?
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@Alex Function.prototype can never be the "root" prototype, since it's prototype link points to Object.prototype. The function Object.getPrototypeOf( obj ) returns the topmost object in the prototype chain of obj. It enables you to follow the prototype chain of obj un...
Can I try/catch a warning?
...t a lot of time debugging a problem in a system where someone had written @mysql_query( '...' ) and the problem was that mysql support was not loaded into PHP and it threw a silent fatal error. It will be safe for those things that are part of the PHP core but please use it with care.
bob@mypc:~$ p...