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Best practices for SQL varchar column length [closed]
...), it does not make any difference whether you declare a column as VARCHAR(100) or VARCHAR(500).
You should see the max length provided for a VARCHAR column as a kind of constraint (or business rule) rather than a technical/physical thing.
For PostgreSQL the best setup is to use text without a le...
are there dictionaries in javascript like python?
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131
This is an old post, but I thought I should provide an illustrated answer anyway.
Use javascr...
AngularJS Multiple ng-app within a page
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How to set iPhone UIView z index?
...w atIndex:(NSInteger)index;
- (void)exchangeSubviewAtIndex:(NSInteger)index1 withSubviewAtIndex:(NSInteger)index2;
- (void)addSubview:(UIView *)view;
- (void)insertSubview:(UIView *)view belowSubview:(UIView *)siblingSubview;
- (void)insertSubview:(UIView *)view aboveSubview:(UIView *)siblingSubvie...
Random hash in Python
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A md5-hash is just a 128-bit value, so if you want a random one:
import random
hash = random...
How to hide the keyboard when I press return key in a UITextField?
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Regex (grep) for multi-line search needed [duplicate]
...can do multiline search with grep.
$ grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c
Explanation:
-P activate perl-regexp for grep (a powerful extension of regular expressions)
-z suppress newline at the end of line, substituting it for null character. That is, grep knows where end of line is, but...
What is a mixin, and why are they useful?
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GIT clone repo across local file system in windows
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You can specify the remote’s URL by applying the UNC path to the file protocol. This require...
What's the easy way to auto create non existing dir in ansible
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Right now, this is the only way
- name: Ensures {{project_root}}/conf dir exists
file: path...