parameters

问题 You get a compilation error if you define the string parameter to have a size greater than 8000 e.g. The size (9000) given to the type 'varchar' exceeds the maximum allowed for any data type (8000). Any ideas? 回答1: you need to store it as TEXT instead of varchar for string larger than 8000 in sql 2000 回答2: You can't use text as a parameter value for a stored proc in SQL 2000<< Sure you can. What you cannot do is define a local variable as text 回答3: You can't do that in SQL 2000, use the "text

问题 I need to call my WCF REST Service with multiple parameters with the POST method, but I can't create DataContract containing my parameters because I need simple types : my webservice will be consumed by an objective C application. I found this syntax on the MSDN site : [OperationContract] [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Wrapped, UriTemplate = "savejson?id={id}&fichier={fichier}")] bool

问题 I have the following code: def radixSort(A): #get max amount of digits A = sortByDigit(A, maxDigits) #this works print(A) #prints A as sorted if __name__ == "__main__": A = [int(100*random.random()) for i in range(10)] radixSort(A) print(A) #prints unsorted Why does changing A in radixSort not change A in the main method ? I realize I could simply add a return statement in radixSort, and an assignment statement in the main method, but the code has to pass the following test case: def

问题 Is there a naming convention or maybe some guideline on how to name function parameters? Since forever, I have been doing it like this: function divide( $pDividend, $pDivisor ) { ... } That way I'll always know which variables were passed as parameters. (This one's PHP, but it should be applicable to most programming languages) Is there one major reason against this? Is there a better way to do this or is it probably best to just avoid such naming schemes? 回答1: If : your functions/methods are

问题 def doSomething(value) if (value.is_a?(Integer)) print value * 2 else print "Error: Expected integer value" exit end end Can I tell a Ruby method that a certain parameter should be an Integer, otherwise crash? Like Java. 回答1: No, you can't. You can only do what you're already doing: check the type yourself. 回答2: I'm late to the party, but I wanted to add something else: A really important concept in Ruby is Duck Typing. The idea behind this principle is that you don't really care about the

问题 I am planning to use refreshModelBeforeResult as suggested in Struts2 Documentation, however I am confused whether this property can be set in Action class or struts.xml . Is there is anything apart from what I have tried below <action name="myAction" class="com.stuff.MyActionClass" method="myMethod"> <result name="myHome" type="tiles">MyHome</result> <interceptor-ref name="basicStack" /> <interceptor-ref name="params"/> <interceptor-ref name="modelDriven"> <param name=

问题 There is a declaration of template class with implicit parameters: List.h template <typename Item, const bool attribute = true> class List: public OList <item, attribute> { public: List() : OList<Item, attribute> () {} .... }; I tried to use the fllowing forward declaration in a different header file: Analysis.h template <typename T, const bool attribute = true> class List; But G++ shows this error: List.h:28: error: redefinition of default argument for `bool attribute' Analysis.h:43: error:

问题 In MVC, I know we can get parameters from a get request like this: Request: http://www.example.com/method?param1=good&param2=bad And in controller public ActionResult method(string param1, string param2) { .... } But in my situation an external website sends me a get request like: http://www.example.com/method?param.1=good&param.2=bad And in controller when i try to meet this request like as follow: public ActionResult method(string param.1, string param.2) { .... } I get build errors because

问题 I'm having trouble with nontype(int variable) template parameter. Why can't I pass a constant int variable to a function and let the function instantiate the template? template<int size> class MyTemplate { // do something with size }; void run(const int j) { MyTemplate<j> b; // not fine } void main() { const int i = 3; MyTemplate<i> a; // fine; run(i); // not fine } not fine : compiler says, error: 'j' cannot appear in constant-expression EDIT This is what I ended up with. Maybe someone might

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 6 years ago . Im fairly new to c# programming. What does passing a parameter mean? and can someone give me an example please? Thank you. 回答1: Functions in languages such as C# (and many, many, others) can take "parameters". These are things you pass in to let the function do whatever it was