Question: We have several heavily-used tables with lots of columns (average around 30 columns), and the users are getting locked out frequently. We’ve thought about splitting the tables, but didn’t
Question: Data field objects in OPO can accept any amount of data, but if I send too many characters to the server, I get an error “flushing the row to
Question: How are transactions handled in OPO? Answer: Transactions are the core of multi-user data processing integrity. A transaction defines an all-or-none unit of work. The classic example of a
Question: The repeater in my application seems to be very slow in populating. Is there anything I can do to improve its performance? Answer: Poor performance can be the result
Question: [Joe Celko’s Equal Sets Puzzle]Set theory has two symbols for subsets. One is a “horseshoe” on its side, which means that set A is contained within set B and
Question: I want to periodically check to see if a user’s database connection has been lost. How can I? Answer: First of all, a solution. You can implement periodic ‘polling’
Question: What are the advantages/disadvantages of putting large binary files (1+ MB) in BLOB columns versus storing them on a file server with a reference such as a directory/file spec
Question: I have nine offices. I want each office to connect across aWAN and run client/server applications with all datacontained on one central server. However, we are finding the delays
Question: What are the differences between LEFT, RIGHT, INNER and OUTER JOINS? Answer: An INNER JOIN is the most common type: It combines all the data from the tables specified