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It was about performance aspect. This is why I would like to know if someone has already heard recommendations related to performance regarding INSPECT.

In file records and in working-storage data structures.

Hello,

A guy told me that the SQRT function can be a CPU killer in specific circumstances but he cannot find any doc about this assertion anymore. Do you know what these circumstances are?

Regards,

Hello,

I heard there were some some INSPECT constructs that were not recommended but I do not know which ones. Could you tell me if it is true and then, why? Thanks in advance.

Regards,

Hello,

Is there any recommendation or best practice to respect in using OCCURS DEPENDING ON clause? I mean, what are advantages, pitfalls, or potential troubles?

Regards,

Well, in conclusion according to your explanations we can say that it is relevant to mention BLOCK CONTAINS 0 as much as possible for output QSAM files but it is not necessary for inputs. Nevertheless in this last case, if you want to use the BLOCK CONTAINS clause you should use it with 0 to be sure...

Thank you for the answer. I do not have access to any machine for the moment. This is why I posted the question. Have you already done this type of experiment yourself?

But the question could be as follows: does it make sense to specify this clause for input file?

What is the thing I missed? VSAM?

Hello,

I saw in doc this clause can be used on QSAM files and does not have any effect on SD, SYSIN, and SYSOUT files.

Should it be used on output files only?

Thank you in advance for your answers.

Regards,

Does anymone try to query a DB2 for zOS from a Java app on Windows?

Thank you in advance.

Thank you for your answer.

As I saw on the Compuware site, Strobe allows to collecte execution statistics. Have you already used it? Do you other similar tools?

Regards

Hello, I would like to find programs of an application that impact performance and that should be improved.Is there some tools that allow to know how many times a program has been executed on the zOS and what is its average execution time? My goal is to send this information onto Windows in order to...

Hello, I would like to use Java on Windows to access a DB2 zOS subsystem. I have already implemented some queries in a JCL in order to extract information from system-catalog into readable Windows text files and now I would like to use Java. For instance, I have the following query that allows to ex...

Hello, You spoke about new program checking. But what about old programs or programs that have been developed by another team (for instance in a outsourcing context)? Is it possible to use some specific checks in order to detect potential bugs? In your shop, what are the types of bugs you regularly ...

Hi,

Sorry to answer so late.

Thank you for your response. Do you know some "classical" troubles that can generate abends in production for Cobol programs ? And how to detect them by looking at the source code ?

Thanks.

Regards

Hi,

Ok, but what are the interesting checks I should perform to see if the application is ok and will not have potential problems in production ? Not only about performance but also robustness.


Thank in advance.