Database Programmers using interfaces APIs like ADO, DAO etc. must remain aware of the result sets they are building. One should try to reduce the size of the result set
Use of inequality operators in SQL queries force databases to use table scans to evaluate the inequalities. These queries generate high I/O if they run regularly against large tables. You
It has become customary for Microsoft Windows users to close an active window by pressing the escape key. It is not that easy to intercept key events in Java. This
When you use Access database or other file based database with Active Server Pages (ASP), you should make sure that the directory in which the database resides is marked as
Question: How do I use a memory variable as a filename when copying and renaming a file? Answer: For sake of example, let’s say that you have a character variable
Question: How can I determine a length of a PB structure? Answer: There is no way in PowerBuilder to do this. If you require the size of the structure for
Question: I am planning to give my Microsoft Certification Exam for VB 6.0 (Developing Distributed Application Development using Visual Basic 6.0 (70-175)). I have worked on Visual Basic for 6
Question: Is there any way that pictures of users can be downloaded into the system so that when you pull up their name and select “Properties” you can get a
Question: When I build a VFP executable file and copy it to another machine, I cannot seem to run the executable. I obtain messages like “cannot …..file support library.” What