This question already has answers here: Closed 11开发者_开发技巧 years ago. Possible Duplicate: What do <:<, <%<, and =:= mean in Scala 2.8, and where are they documented?
I want to store scientific notation numbers in MySql. I\'ve saved them to a field which has datatype decimal. The issue is that it stores it in normal notation (at least that what it seems when I vie
Can I discover types declared in Oracle PL/SQL packages using开发者_Python百科 dictionary views? I.e. when I declare this:
In a Java context, what\'s the proper way to refer to a variable type that can contain multiple objects or primitives, and the proper way to refer to a type that can contain just one?开发者_开发技巧
I have a little confusion with the following things: Null DBNull.Value \"\" When I use Conditional Statements OR while assigning values, I am a little bit confused with these things. Sometimes it
Is it possible to directly access elements of vectors in a data.frame? # DataFrame nerv <- data.frame(
While Converting Decimal to String, I tried two methods. Method 1: string a = \"100.00\", b = \"50.00\";
compute fp = do text <- readFile fp let (a,b) = sth text let x = data b --g <- x putStr $ print_matrix $ fst $ head $ x
since Haskell has such expressive type system, is there something supported directly that we can query whether some data is of some type? like in Racket, (String? \"开发者_如何学CHi\") (will return tr
Running Postgres 7.4 (Yeah we are in the midst of upgrading) I need to store from 1 to 100 selected items into one field in a database. 98% of the time it\'s just going to be 1 item entered, and 2% o
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