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Are database triggers evil? [closed]
...y; it's easy to forget they are there until they hurt you with unintended (and very mysterious) consequences.
This just means they need to be carefully used for the proper circumstances; which in my experience is limited to relational integrity issues (sometimes with finer granularity than you can...
Android: How can I get the current foreground activity (from a service)?
Is there a native android way to get a reference to the currently running Activity from a service?
12 Answers
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Neo4j - Cypher vs Gremlin query language
...o options for performing complex queries - Cypher (Neo4j's query language) and Gremlin (the general purpose graph query/traversal language).
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How to remove all the occurrences of a char in c++ string
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Basically, replace replaces a character with another and '' is not a character. What you're looking for is erase.
See this question which answers the same problem. In your case:
#include <algorithm>
str.erase(std::remove(str.begin(), str.end(), 'a'), str.end());
Or us...
Is it possible for a computer to “learn” a regular expression by user-provided examples?
...ton, it is possible to learn some regular expressions by a program. Kearns and Valiant show some cases where it is not possible to learn a finite automaton. A related problem is learning hidden Markov Models, which are probabilistic automata that can describe a character sequence. Note that most mod...
Ant: How to execute a command for each file in directory?
I want to execute a command from an Ant buildfile, for each file in a directory.
I am looking for a platform-independent solution.
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What, exactly, is needed for “margin: 0 auto;” to work?
...lement is used to centre it (left-right). However, I know that the element and its parent must meet certain criteria for the auto margin to work, and I can never seem to get the magic right.
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Search All Fields In All Tables For A Specific Value (Oracle)
...an you not start with whatever client application is displaying this value and try to figure out what query it is using to obtain it?
Anyway, diciu's answer gives one method of generating SQL queries to check every column of every table for the value. You can also do similar stuff entirely in one ...
How do I pass variables and data from PHP to JavaScript?
I have a variable in PHP, and I need its value in my JavaScript code. How can I get my variable from PHP to JavaScript?
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In Git, how can I write the current commit hash to a file in the same commit
...-parse HEAD > filename or perhaps git describe [--tags] > filename), and it avoids doing anything crazy like ending up with a file that's different from what git's tracking.
Your code can then reference this file when it needs the version number, or a build process could incorporate the infor...