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MySQL vs MongoDB 1000 reads
I have been very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
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How do you round a floating point number in Perl?
...t int() merely truncates toward 0. For rounding to a certain number of digits, sprintf() or printf() is usually the easiest
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIX module (part of the standard Perl distribution) implements
ceil(), floor(), and a number of other ma...
SSH library for Java [closed]
... Channel (JSCH) is a very popular library, used by maven, ant and eclipse. It is open source with a BSD style license.
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What exactly are late static bindings in PHP?
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You definitely need to read Late Static Bindings in the PHP manual. However, I'll try to give you a quick summary.
Basically, it boils down to the fact that the self keyword does not follow the same rules of inheritance. self alway...
Create a hexadecimal colour based on a string with JavaScript
...generate a hexadecimal value between #000000 and #FFFFFF , so I can use it as a colour for a HTML element.
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Gulps gulp.watch not triggered for new or deleted files?
The following Gulpjs task works fine when editing files in the glob match:
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Sort a single String in Java
Is there a native way to sort a String by its contents in java? E.g.
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Git push results in “Authentication Failed”
I have been using Github for a little while and I have been fine with git add , git commit , and git push so far with no problems. Suddenly I am having an error that says:
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MySQL: Large VARCHAR vs. TEXT?
...ssage types (all integer types) I need to save the actual message text as either VARCHAR or TEXT. I'm setting a front-end limit of 3000 characters which means the messages would never be inserted into the db as longer than this.
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What are the best practices for using a GUID as a primary key, specifically regarding performance?
... to use the GUIDs as the Primary Keys, but I was thinking of using a Composite Primary Key (The GUID and maybe another field.)
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