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They (crazily long transactions) also prevent .bi files from being recycled, which can lead to DB crashes if you run out of disk space or exceed the 2GB limit. I think the notion of keeping transactions as small/short as possible is one of the (few?) things that every experienced Progress...

I'm interested in the claim that dynamic anything is 4-5x slower than static. I benchmarked this (not with export though) in the past and found a < 5% difference. That was many versions ago, though, plus, I probably didn't do it super-carefully. I'm wondering if RHD has any knowledge of this?

There is plenty to not like about Progress, but it's an enduring mystery to me why the central idea - that one language can implement both business logic and data manipulation, and that the compiler understands all about the database schema - hasn't taken root in the OSS world (which is in most...

If I may, I believe the correct quote is: " It makes a good demo. At least, it did in 1985." That's been stuck on my cube wall since you (TomB) posted it a few years back. The biggest obvious flaw of validation expressions is that they are not applied to programmatic ASSIGN statements, only to...

I hope TomB is all right ... as soon as he reads this you can expect a complete explanation ! Maybe he's too busy getting ready for PUG. There's a KB entry which the way I read it specifically states that -brl should cause this behaviour, and implying that without -brl, it shouldn't happen. I...

Hmmm, I expected multiple educated replies on this already. I tried this and was surprised to get the same answer you did. I thought this was only supposed to happen if you used -brl, but we don't. In real life, I have never had problems with this (at least, not that I am aware of) probably...

Thanks a lot for taking the time to reply. Interesting.

I'm not exactly sure what you are asking. But I'll give it a shot: 1. I would imagine that LOG_TABLE is a generic procedure that will take any table with any arbitrary combination of data types in it and write its contents out to some log file. LOG_TABLE would not have any hard-coded, aka...

I don't mean to badger you ... but since you obviously know your way around ABL OO and I don't at all, care to answer: 1) What's your aversion to DB IO inside statics? I have no experience of this and am genuinely curious. In JavaLand, I don't see why it is necessary bad, so maybe it's an...

A few posts back, you stated that Progress supports multiple inheritance (not just multiple interfaces), whereas the most recent documentation seems to indicate this is not so. So I was wondering if you knew of some trick to make MI work. I was interested because so few languages support MI and...

@tamhas, ' ABL *does* allow multiple interfaces per class and even multiple inheritance in sufficiently modern versions', may I ask which versions or if there is some special syntax? This is the syntax definition from the most recent documentation that I can find on progress.com. CLASS...

You asked this exact same question last week and at least two of us answered it. But I'll try again. 1. We have a generic 'log the contents of any table' procedure. So you can run it like 'RUN log_table(foo)', where 'foo' is a handle to a buffer or dynamic table, and 'log_table' dynamically...

Ha, it never occurred to me that you could do that. I would have expected a syntax error. I don't know how you could even tell which buffer is being used. Maybe it's actually the same one and the DEF BUFFER does nothing. I think this probably falls into that general category of things you CAN...

In your example, the buffer is indeed useless. But here is a made-up example of where it would be useful, and this kind of thing comes up all the time: FOR EACH customer: /* This will get a different customer, without affecting the customer referenced by the FOR EACH */ FIND b-cust1...

I don't really understand this question, but if I were faced with converting a table with 10 million rows and 200 columns... the 200 columns would not faze me at all. The 10 million rows would only faze me if I was exporting to text files (which I assume you are) and said files were likely to...

I just finished a C++ course, which is the only language that I know of (I'm sure there are others that I don't know of) that supports multiple inheritance. After learning about the issues involved, for sure it seems like not supporting it is the right choice, language-design wise!

"then why to associate handle with dynamic object because most of the properties and methods are accessed via static objects" We use these scenarios a lot: 1. You have a program loaded with business logic to do something like route orders or calculate interest. It needs to be intimately aware...

I think this is a great idea and I have been wishing for a while now that we used this pattern. I mean, the idea of a minimal constructor, followed by setting properties, followed by validating the result before using it. ... but for sake of argument, does this not violate your rule of 'never...

The reason nobody else has answered this yet is because while CAN-DO can function as a shorthand for "OR" with a comma-delimited list, doing so is so reviled, most ProgressTalkers can't bring themselves to respond. Some might say that it's worse than USE-INDEX, or being on Version 9, or creating...

Tom's example uses a table name in a variable ('tbl'), but it's dynamic. To do the same type of thing statically, yeah, you have to do some kind of old-school include-parameter thing as in the OP's example. BTW, I hesitate greatly to impugn RHD's response in any way, but we do this all over the...