Tip Bank

DevX - Software Development Resource

Understanding Memory Pages and Page Alignment

System memory is divided into units that are called “pages”. A page consists of 4,096 bytes (4K) on Intel architectures, and on Alpha systems it consists of 8,192 bytes (8K).

DevX - Software Development Resource

Returning a Certain Number of Rows

Question: How do I get a query to return only a certain number of rows? For instance, a search criterion might return 100 rows, but I only want to see

DevX - Software Development Resource

Answering SQL Queries in Excel

Question: I’ve got an Excel workbook composed by a series of pages (worksheets). One of them is called ‘Wholesales’. I’ve tried to retrieve values even with basic syntax: select *

DevX - Software Development Resource

Inactivity Timeout

Question: I’d like incorporate an inactivity timeout for an application.When there is no mouse or keyboard activity in the application fora certain period of time, I want to close all

DevX - Software Development Resource

Creating a Schedule Timetable

Question: I have a table with five columns. They are “No. of People,” “Tour1,” Tour2,” “Tour3,” and “Tour4.” I want to set up a query that shows me how many

DevX - Software Development Resource

Retrieving the Greatest Value from a Group

Question: I have a table like this one: Day_Period_Money (daydate date, period number, amount number); Here is an example of some data: daydate period amount01/01/99 1 1001/01/99 2 2001/01/99 3