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MySQL, Check if a column exists in a table with SQL
...table in MySQL has a specific column, and if not — create it. Otherwise do nothing. This is really an easy procedure in any enterprise-class database, yet MySQL seems to be an exception.
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Is passing 'this' in a method call accepted practice in java
...practice, in real code (contrary to OP's simplified example), passing this doesn't mean you add a bidirectional link, because of inheritance and interfaces for example.
– Denys Séguret
Jul 3 '13 at 17:17
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How to create a multi-tenant database with shared table structures?
... you toward a more shared
approach.
How many prospective tenants do you expect to target? You may be nowhere
near being able to estimate
prospective use with authority, but
think in terms of orders of magnitude:
are you building an application for
hundreds of tenants? Thousands? ...
How to use bootstrap-theme.css with bootstrap 3?
After downloading a complete pack of bootstrap 3 from http://getbootstrap.com , I noticed that there is a separate css file for theme. How to make use of it? Please explain?
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jQuery .scrollTop(); + animation
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To do this, you can set a callback function for the animate command which will execute after the scroll animation has finished.
For example:
var body = $("html, body");
body.stop().animate({scrollTop:0}, 500, 'swing', function...
Error - Unable to access the IIS metabase
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On Windows 8 Pro:
%systemroot%\inetsrv\config
On Windows 7 and 8.1 and 10
%systemroot%\System32\inetsrv\config
(Where %systemroot% is usually C:\Windows)
Navigate to the appropriate location above in Windows Explorer. You...
fatal: Not a valid object name: 'master'
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When I git init a folder it doesn't create a master branch
This is true, and expected behaviour. Git will not create a master branch until you commit something.
When I do git --bare init it creates the files.
A non-bare git init will also create...
How to make an input type=button act like a hyperlink and redirect using a get request? [duplicate]
How do I make a <input type=button> act like a hyperlink and redirect using a GET request?
6 Answers
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What should main() return in C and C++?
...ningless to someone reading your code. This question is proof that people don't know what valid/invalid codes are. EXIT_SUCCESS/EXIT_FAILURE are much more clear.
– JaredPar
Oct 15 '08 at 16:32
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Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
...all you should look for the reinstall option which should be -r. So if you do adb install -r you should be able to install without uninstalling before.
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