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Is there a MySQL option/feature to track history of changes to records?
...business requirement is "I want to audit the changes to the data - who did what and when?", you can usually use audit tables (as per the trigger example Keethanjan posted). I'm not a huge fan of triggers, but it has the great benefit of being relatively painless to implement - your existing code doe...
Can I Replace Apache with Node.js?
...d like to do fancier things with it—namely real-time notifications. From what I've read, Apache handles this poorly. I'm wondering if I can replace just Apache with Node.js (so instead of " LAMP " it would "LNMP").
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Difference between CPPFLAGS and CXXFLAGS in GNU Make
What's the difference between CPPFLAGS and CXXFLAGS in GNU Make?
4 Answers
4
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Get the cartesian product of a series of lists?
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What is the use of * before somelists? What does it do?
– Vineet Kumar Doshi
Aug 25 '15 at 9:04
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Remove leading or trailing spaces in an entire column of data
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If you would like to use a formula, the TRIM function will do exactly what you're looking for:
+----+------------+---------------------+
| | A | B |
+----+------------+---------------------+
| 1 | =TRIM(B1) | value to trim here |
+----+------------+------------...
JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
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Well, javascript has try-catch. Depending on what you actually need to do (i.e. what your else statement would look like if it's undefined), that may be what you want.
example:
try {
user.loc.lat.doSomething();
} catch(error) {
//report
}
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Wrong syntax highlighting for PHP file in PHPStorm
I don't know what happened but syntax highlighting for one php file stopped to working and also icon next to the file has changed. It shows it's text file instead of PHP .
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How to set background color of an Activity to white programmatically?
...oot layout used, then set the background color on that. The root layout is whatever you called setContentView with.
setContentView(R.layout.main);
// Now get a handle to any View contained
// within the main layout you are using
View someView = findViewById(R.id.randomViewInMainLayout);
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how to remove untracked files in Git?
...for ignored files(add if required)
Note: Add -n or --dry-run to just check what it will do.
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Should I index a bit field in SQL Server?
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Consider what an index is in SQL - and index is really a chunk of memory pointing at other chunks of memory (i.e. pointers to rows). The index is broken into pages so that portions of the index can be loaded and unloaded from memory ...