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Delaying a Program

Question: Can you please tell me how to delay the program flow in Java? I can’t find any implementation of delay(). Answer: To introduce a delay into your program, use

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Inner Classes

Question: Why can’t I have a static member in an inner class? Answer: The simple answer is that static member variables and methods aredisallowed by the Inner Classes Specification that

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Splash Page Creation

Question: I would like to show a splash page and have it time out after approximately five seconds. How do I do that? Answer: Presumably you would like to display

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Writing to the NetServerEnum Description Field

Question: Is it possible using code to write to the description field that is returned by the NetServerEnum calls? Answer: Yes, you can write to the description (or comment field

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NT RAS error codes

Question: Where can I go to decipher Microsoft error codes? I am having trouble making one NT workstation dial in to my RRAS server; I get a TCP/IP error code

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Frame Positioning

Question: Is it possible to reposition the frame of a standalone application? My application starts up at the upper left corner of my monitor every time. Answer: Yes, you can

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The Trouble with Triggers, Part III

n this section I will provide an approach to coding and debugging triggers and discuss the new features that have been added in SQL Server version 7 regarding triggers. Why

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Sort by date

Question: In a project tracking database, one of the columns in a table contains the date in this format: MM/DD/YY. I would like to be able to see a listing

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Exporting Select Query to CSV File

Question: Using the following SQL statement, I could export a select query into a dbf file at c: emp est.dbf INSERT INTO test IN ‘C: emp’ ‘DBASE IV;’ SELECT *

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Listviews Item Selection

Question: How can I select the whole row (with a bigger blue line) in a listview control? The default selects just the item located in the first column. Answer: That

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Printing a line at the detail band

Question: I want to print a line at the detail band onlyif it’s on the last row of the page; otherwise, itshould not print at all. Answer: To achieve this,

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Page allocations in a sql table

Question: I am getting all kinds of errors on a database table that have something to do with page allocation in the database (error 1109). I would like to drop

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Socket Buffer Size

Question: How do I set the socket input and output buffer sizes in Java? Answer: You cannot set the socket input and output buffer sizes in Java versions prior to

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What is SQL?

Question: What are the types of features available and its respective characteristics? How does this language help in relational databases? Answer: May I suggest you obtain Joe Celko’s introductory book

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Cannot index

Question: SQL Server 6.5 does not allow an index to be placed on the bit datatype. Does this affect performance when doing queries that filter on the bit, or are

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Using a stored procedure like a subquery

Question: I’m trying to get something like this to work. How can I take the output of a stored procedure and use it in a subquery? create procedure pcore asselect

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Documenting my tables, triggers

Question: We use SQL Server 6.5 (7 in a few weeks). I’m looking for a good tool to generate ERDs and overviews of my database tables. Which software can you

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pass variables to a pb app

Question: My PowerBuilder application is a contact system. It includes a case-based reasoning system that uses customer account numbers to guide users through actions. I need to be able to

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Changing the current directory

Question: How does one change the current working directory of a Java program or a java.lang.Process? The equivalent of the Unix chdir system call seems to be absent. Answer: There

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Rich Text Edit – Syntax Highlighting

Question: I’m building an application where the user can type several lines of text and save it to disk (as plain text). It would be nice if some words appeared

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Opening an applet socket to the originating server

Question: I have a server application that I want an applet client to connect with. How can the applet determine the address of the originating serverwithout having to hard-code the

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Polymorphism

Question: Given a reference to an object B that is a subclass of A and overrides method foo(), is there any way I can invoke the base implementation of foo()

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RAND Function

Question: I’m doing a select statement within a stored procedure, which returns several columns. I would like to assign a random number to each column, but when I use the

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How Do I Christen This Class?

Good design goes hand in hand with the nomenclature it uses for exchanging that design between developers. A key feature to writing good code consists of good naming conventions and

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Checking Whether a Stack Is Empty

It is an error to call the member function pop() on an empty stack. If you are not sure whether a stack contains any elements, you can use the member