I have a SQL query something like:- Select Table1.attr1, Table1.attr2, Table2.attr3, Table2.attr4 From Tab1 Tabel1, Tab2 Tabel2 Where Tabel1.Attr = Tabel2.Attr (+) So what does the above mean? Is this a right outer join?Yes, it means right join. if t
In some documentation I came across the @ sign before a variable. What does this sign mean? Here is the code in the documentation: class Book(val id: Long, var title: String, @Column("AUTHOR_ID") var authorId: Long, var coAuthorId: Option[Long])
I have a font loading in my HTML from a web template: <link href='http://fonts.googleapis.com/css?family=Open+Sans:300' rel='stylesheet' type='text/css'> What does the ":300" mean and do?It primarly sets the font-weight for the CSS that is
return React.createElement("div", null, "Hello ", this.props.name); What does a null mean in React the above createElement() execution? React.createElement(type, props, children); The props parameter is a JavaScript object passed from
This question already has an answer here: JavaScript: Have we always been able to index into a string like it's an array? 3 answers [Beginner at Javascript] Edit: Sorry for not being clear, i was having problem understanding that we create "i" i
The manual of a program written in Fortran 90 says, "All real variables and parameters are specified in 64-bit precision (i.e. real*8)." According to Wikipedia, single precision corresponds to 32-bit precision, whereas double precision correspon
What does 1.e0 mean in the following code product *= ((1.e0-pow((double)2,i-32))*(1.e0-pow((double)2,i-32)))/(1.e0-pow((double)2,i-r)); It is c++ code, and how i can write 1.e0 in c# <number>e<power> = <number> * 10^<power> Where t
What does this macro mean or what is the result? #define MOD_TYPE_12 0x11, 0x20, 0x0C, 0x00, 0x02, 0x00, 0x07, 0x0F, 0x42, 0x40, 0x01, 0xC9, 0xC3, 0x80, 0x00, 0x02 Is this evaluated to an array? I couldn't find anything... Maybe because I don`t know
Recently i have come across this statement : InputStream in = new FileInputStream(Filename); What does this statement mean ? In this what does in refer to.? Is in the object of FileInputStream ? writing the statement : InputStream is = new InputStrea
I am taking a logic and functional programming course (with programming in SML) and as part of our first assignment the following question is asked "... You need to define an (abstract) type called 'a set Documentation: Describe formally how finite s
I'm trying to set the ideal performance setup for MySQL and resources needed on a shared hosting. My question is, what does max_connections really mean? Is it the number of unique concurrent requests made to the server? So if there are two users, 1 w
Comparator<? super E> comparator() This method is declared in the Sorted Set interface. What does the super mean? How is the above method different from a Generic Method, and a method with Wildcard arguments.This means that the type of comparison ca
I am trying to learn jquery/javascript by looking at the source code of some websites. I am a bit unsure about the syntax used there: !function(t) { "use strict"; function e() { var e = parseInt(t(window).scrollTop()), n = 10; e > n ? a.addCl
Possible Duplicate: Caret in objective C what does the ^ symbol mean in objective-C? code: GreeRequestServicePopup* requestPopup = [GreeRequestServicePopup popup]; requestPopup.parameters = parameters; requestPopup.willLaunchBlock = ^(id aSender) { [