Re: How difficult is ada to learn?



> > Most people who start with Borland Pascal miss the built-in set and
> > string data types. Ada gets the same effects with packages, but the
> > syntax is far less elegant and readable.
>
> I haven't done any Pascal in a while, so I don't remember the syntax for
> set manipulation, but Ada 2005 will have a set container type. It's an
> abstract data type, declared in a package in the normal way. It
> supports union, intersection, etc.

Don't forget that arrays of booleans automatically have "and", "xor" and "or"
defined (i.e. intersection, symmetric difference and union), so can be used for
sets.

All the best,

Duncan.
.



Relevant Pages

  • Re: Not Common both Tables
    ... For exemple, I'm sure that the Full Outer Join is not available under ... I'm pretty sure that the Exitsstatement and the UNION ... For the syntax error, it's probably a missing AND in the first subquery of ... You can also use an Outer Join and select all the records which will have ...
    (microsoft.public.access.adp.sqlserver)
  • Re: Management Studio & Views containing unions
    ... display the View, which I guess is OK, the old tool couldn't do that ... the syntax verification doesn't work either.. ... "Incorrect Syntax near UNION" error each time. ... Why does MSE choke on a union even if the query is valid? ...
    (microsoft.public.sqlserver.tools)
  • Re: retrieving top 1 of ordered union
    ... Syntax is not your problem. ... You think that SQL's UNION is the same ... 1NF and make it look like a tape file. ... Please post DDL, so that people do not have to guess what the keys, ...
    (microsoft.public.sqlserver.programming)
  • Management Studio & Views containing unions
    ... editing Views that contain a UNION statement. ... For starters, it can't display ... I get an "Incorrect Syntax ... Why does MSE choke on a union even if the query is valid? ...
    (microsoft.public.sqlserver.tools)
  • Re: format for naming recordset field
    ... That's funny, I use the Recordset.Fieldssyntax all the ... lost and never telling the person helping you what intersection you're ...
    (comp.databases.ms-access)