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'IF' in 'SELECT' statement - choose output value based on column values
...IF(type = 'P', amount, amount * -1) as amount
FROM report
See http://dev.mysql.com/doc/refman/5.0/en/control-flow-functions.html.
Additionally, you could handle when the condition is null. In the case of a null amount:
SELECT id,
IF(type = 'P', IFNULL(amount,0), IFNULL(amount,0) * -1) as...
How do I mock a service that returns promise in AngularJS Jasmine unit test?
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@JimAho Typically you just inject $rootScope and call $digest on that.
– dnc253
May 18 '15 at 15:39
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What is the LD_PRELOAD trick?
...case where libraries aren't compiled correctly (used to run into this with mysql all the time where it had a loose coupling to a generic libmysql_client which overwrote an older version's symlink - depending on which version of perl you used you had to specify / force it with LD_PRELOAD.. useful tri...
SQL Client for Mac OS X that works with MS SQL Server [closed]
...r, which can work very well with almost every type of databases, including MySQL, SQL Server, Oracle, PostgreSQL, SAP Hana, Redis... just to name a few. The DB connector driver can be added in a very easy to understand way. I've also tried Oracle SQL Developer, DB Visualizer but they do not work w...
Elegant setup of Python logging in Django
...quirements. The key thing is that I usually add the handlers I want to the root logger, using levels and sometimes logging.Filters to get the events I want to the appropriate files, console, syslogs etc. You can of course add handlers to any other loggers too, but there isn't commonly a need for thi...
CSS hack大全 - 创意 - 清泛网 - 专注C/C++及内核技术
...看下代码，大家会发现其实游览器识别是很简单的。火狐如何识别？对了，IE中对伪类支持不广泛，所以伪类是个不错的途径。(.yourClass,x:-moz-any-link, x:default)注意，这个区分伪类往往IE7也能识别，所以最好还需要把IE7单独识别出...
Unzip a file with php
...he destination to extract to or remove -d yourDestinationDir to extract to root dir.
$master = 'someDir/zipFileName';
$data = system('unzip -d yourDestinationDir '.$master.'.zip');
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What is an ORM, how does it work, and how should I use one? [closed]
...most popular is relational ( you know tables, columns, pk fk etc eg Oracle MySQL, MS-SQL )
And finally the Mapping part is where you do a bridge between your objects and your tables.
In applications where you don't use a ORM framework you do this by hand. Using an ORM framework would allow you d...
“’” showing on page instead of “ ' ”
... when you create it.
You're most likely using SQL Server, but here is some MySQL code (copied from this article):
CREATE DATABASE db_name CHARACTER SET utf8;
CREATE TABLE tbl_name (...) CHARACTER SET utf8;
If your table is however already UTF-8, then you need to take a step back. Who or what put th...