Re: 4GL vs. ESQL/C

Grace Lee, in your mail you wrote: > > I received many responses and some people are interested in what I got. Thanks for all of people responding to my question. The summary is as follows: > > 4GL can invoke shell program, ESQL/C and C programs and it's also easy to manipulate screen and user interface in 4GL. However, only ESQL/C offers the capability to access the low level C and UNIX functions. The general guideline is use 4GL to do SQL, use> r interface works and use ESQL/C to utilize the low level functions. But if you want your implementation to be more easily ported to other DBMS verdor environment, you may consider the ESQL/C. Because 4GL is very informix dependent. > I would have only included what I wanted to comment about, but the summary is all one line :-) Anyway 4GL can call low level C and UNIX functions. Remember, 4GL gets turned into ESQL/C, which gets turned into C, which gets compiled, assembled, and linked. Your guidelines are on the money though. DAS -- David A. Snyder @ UE&C - Catalytic in Philadelphia, PA UUCP: ..!uunet!trac2000!das INTERNET: das@trac2000.ueci.com