In C++ (but not in C), a const object declared in the global scope has internal linkage by default. This means that a const object which apparently looks like a
Question: I have written the following SQL statement and want to update only the end date field (saaphy01.n5ajdd) in one file. How can I tell it in my query to
Question: I want to create two count-variables in one SQL query based on GROUP BY signum_chef. Is that possible? I’ve tried something like this: SELECT DISTINCT signum_chef, Antal=(SELECT COUNT (*)),
Question: What is the difference between Microsoft Exchange and Outlook? We only use Exchange on our workstations, but I have an icon on my desktop for Outlook. Please explain. Answer:
Question: I’m trying to access a particular field via an ASP. I presently have a table displaying multiple fields. Everything works fine, but as soon as I try to add
popular way to display data from a recordset, especially a large one, is in a paged fashion. For example, when you ask for all the data from a table in
any people ask about how the Implements statement is used in Visual Basic. It is actually quite useful and allows you to build more flexible applications. Here’s what it is
s someone who genuinely likes SQL and relational databases, I get a particular kick out of seeing how database engines use relational tables themselves to store their own metadata. As
n an ideal world, the process of communicating between XML and the database world would be completely seamless and transparent?you point an XML DOM at a database, say Update or
ne of the terms that strikes terror into the hearts of Computer Science 101 students is recursion. Until you are able to think recursion through, the implications of it are
avaServer Pages can make Web Application development a lot simpler.When coupled with JavaBeans, turning HTML form input into Javaobjects is a lot faster to implement. If you identify the mostcommon
When you right-click a TextBox control, Windows sends it a WM_CONTEXTMENU message, to which VB reacts by displaying the default Edit popup menu, that contains editing commands such as Cut,
Whenever the system time or the display resolution changes, Windows sends all the top-level windows (forms, in VB jargon) the WM_TIMECHANGE or WM_DISPLAYCHANGE message, respectively. Therefore, you can easily determine
When the user resizes a form with the mouse or the keyboard, or maximizes it, Windows sends the form a WM_GETMINMAXINFO message, with lParam pointing to a MINMAXINFO structure that
When the user scrolls the contents of a TextBox control – either by clicking on the companion scrollbars or by typing new characters in the edit area – the TextBox
The Paint event doesn’t provide with information about which region of the form must be actually repainted, and therefore forces the programmer to repaint the entire client area, which in
VB forms exposes the Activate and Deactivate events, which fire when the form gets and loses the focus because the user has clicked on another form of the same application.
Basic Text Tagsith only a small set of HTML tags you can create a functional page. The set of tags in this section let you set up an HTML file
o, you’ve decided to add some graphical pizzazz to your site: A dozen images, an animated GIF or two, a set of graphic dividers and bullets, and a cool background
inking together different ideas and content is a basic strength of the Web. The very name “browser” comes from this idea. The browser lets you, from your desktop, browse through
ell-used graphic images make a site more interesting, add information, and help with navigation. With a little forethought, you can use images that download quickly, display quickly, look good, and
he symbol means that the style property is not supported by Netscape Navigator 4.0.The symbolmeans that the style property is not supported by Internet Explorer 3.0.The symbolmeans that the style
umans tend to be visual creatures?and the Web reflects who we are.Back when it started, the Internet was a text-only medium. Hard to imagine now, isn’t it? A bit like
n this section, we discuss sound as a design element, and we explore some of the issues and considerations regarding sound on your Web site. The Audio Experience considers audio
he following sections discuss linking to sound files, embedding sound files, autoplaying sounds, adding background sound, and using JavaScript to insert audio. We’ll continuously update and add more ways of
thumbnail is a miniaturized version of a full-sized image. As a design element it can enable you to show many images without the overhead of full-sized versions. One way to
nterlacing is a technique for loading graphic files in a non-contiguous manner.GIF files can be saved in two ways, consecutive and interlaced. Consecutive GIFs are displayed on the screen line-by-line
he decisions you make about file format, compression, palette, resolution, and bit depth effect both quality and download speeds.There are a number of technical decisions you’ll need to make as
olor Values: name, #hex, rgb(R%, G%, B%), rgb(R, G, B)You have four options for specifying color: As a standard color name As a hexadecimal value As an RGB percentage As
ou can measure CSS property values in one of two ways: As an absolute value As a relative value. Absolute values have a fixed, specific value. They let you, the