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October 6, 2000

Implementing Push Technology in WAP

Question: How can I implement an alert messaging system (such as a system for instant notification of delays in flight schedules) for WAP-enabled devices? Answer: Most phones have e-mail addresses.

Informix 9.20 Memory Leak?

Question: Does Informix 9.20 have a memory leak? We’ve doubled our physical memory since upgrading, taken a number of tuning actions, but the product keeps grabbing more memory. No appreciative

Selecting “N” Records from Result Set

Question: How can we specify in a select statement to get first “n” records from the result set? E.g., select * from employee order by emp_num I just want the

Multiple Line Headers on Grids

Question: Can I have multiple line headers on grids? Answer: No, you cannot have multiple line headers on grids in VFP, but you can simulate them by overlapping a shape

Determining the Client

Question: The request.servervariables(“HTTP_USER_AGENT”) method does not seem to return the type of client (e.g., Netscape or Nokia handset) for mobile devices. Is this the correct way to find the type

Maximizing the Browse Window

Question: When I use the BROWSE command it always displays the results in a normal window. Is there a command to maximize the browse window in the program? Answer: The

Creating an Executable File from a Project

Question: I copied my executable file and the VFP6R.DLL, VFPRENU.DLL, FOXUSER.DBF and FOXUSER.FPT files to my user’s PC. When I try to run it, the screen form flashes and the

Temporary Table Creation

Question: What is the advantage of creating temporary tables? Answer: SQL query optimizers, while usually very efficient and accurate, sometimes refuse to evaluate a query in the most efficient manner.

Problem with Using Ontape

Question: I am running Informix 7.3 on SCO Openserver 5. I run Ontape every morning and it has been going fine. Starting yesterday I’ve been getting the following error: Archive