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MySQL: selecting rows where a column is null
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I had the same issue when converting databases from Access to MySQL (using vb.net to communicate with the database).
I needed to assess if a field (field type varchar(1)) was null.
This statement worked for my scenario:
SELECT * FROM [table name] W...
ReSharper Abbreviations List: Where can I modify it?
I am using ReSharper 4.5, and what often happens when I am converting explicit properties into auto-properties, is that I will accidentally chose "Add XX to abbreviations list".
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What does |= (ior) do in Python?
.... See examples below.
Sets
For example, the union of two assigned sets s1 and s2 share the following equivalent expressions:
>>> s1 = s1 | s12 # 1
>>> s1 |= s2 # 2
>>> s1.__ior__(s2) ...
Places where JavaBeans are used?
What is a JavaBean and why do I need it? Since I can create all apps with the class and interface structure? Why do I need beans? And can you give me some examples where beans are essential instead of classes and interfaces?
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What is the difference between Trap and Interrupt?
What is the difference between Trap and Interrupt?
9 Answers
9
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Identifying and removing null characters in UNIX
...icates that the file is encoded in UTF-16 and that you should use iconv to convert it to UTF-8.
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Multiple HttpPost method in Web API controller
...fine the following routes in WebApiConfig file.
// Controller Only
// To handle routes like `/api/VTRouting`
config.Routes.MapHttpRoute(
name: "ControllerOnly",
routeTemplate: "api/{controller}"
);
// Controller with ID
// To handle routes like `/api/VTRouting/1`
config.Rou...
How to define optional methods in Swift protocol?
... (well, no explicitly at least). This means you can conform structs, enums and non-NSObject classes to it. Also, this means you can take advantage of powerful generics system.
You can always be sure that all requirements are met when encountering types that conform to such protocol. It's always eith...
How do I pass multiple attributes into an Angular.js attribute directive?
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link: function (scope, element, attrs) {
//convert the attributes to object and get its properties
var attributes = scope.$eval(attrs.myDirective);
console.log('id:'+attributes.id);
console.log('id:'+attributes.name);
}
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Pass Additional ViewData to a Strongly-Typed Partial View
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I'm trying to do this and it is returning "cannot convert void to object".
– programad
Jan 20 '12 at 0:53
4
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