Thanks for the information about the sleep API. On a recent project, we had a requirement to ensure that two operations were at least a microsecond apart, but a full second proved to be far too long. (Seconds add up quickly!) We created a DLYJOBSML (Delay Job for Small Duration) command and invoked the usleep API in the CPP.

–Blair

Like sleep, usleep also delays a job. The difference is that the usleep parameter denotes milliseconds, rather than whole seconds. You might say that sleep is like going to bed at night, whereas usleep only takes a nap.

Here’s the

I consider fetch a great word, and lament that it is no longer used in daily English, at least not where I live, except maybe when speaking to dogs. Fortunately, fetch is still used heavily in SQL. High-level language programs need it to convert set-at-a-time processing into row-at-a-time processing. Fetch can do more than read a result set from beginning to end. Do you know what else it can do?

From Top to Bottom

For starters, let’s look at the most common use of fetch–to read an SQL cursor from beginning to end. The following highly sophisticated demonstration program shows

Part 1

Backup media encryption is becoming a rapidly growing concern for companies that are dealing with ever increasing regulatory, legal, compliance, and identity theft prevention requirements. This issue and next, I’ll look at four techniques that i5/OS users have for encrypting backups for greater protection and to satisfy auditors and government agencies. I’ll explore what technologies are available, as well as the advantages and disadvantages of using each technology.

What To Encrypt?

Your first encryption decision involves specifying what you need to encrypt. In general, one or more of the following items need to be encrypted as they are