Mainframe, MVS and zOS Discussion

There are multiple ways to do this. One way would be to add a sequence number field to the record. Or add a constant 1 to the record and sum them. Or just use a COPY and look at the job output to see how many records SORT found. The answer to your question partly depends upon what you meant -- do yo...

1. Data sent / received with maps does not have to be constant. Variables work since the contents of the variable are placed into / read from the map fields. 2. Generate a map, compile the program using the copy book, and much will be clearer. The map compile generates the appropriate -I, -O, -A, -L...

With REUSE(NO) for a VSAM file, you will need to delete / define the file to empty it. This uses IDCAMS, not SORT.

TSO/ISPF edit requires memory. This memory is used to hold a copy of the entire data set to allow you to make changes to it. The changes are not committed to the data set until you use the SAVE command or exit the data set edit. TSO/ISPF browse does not read the entire data set into memory. You can ...

Your SPACE parameter does not include anything for the PDS directory, hence the BLDL error. Change the (25,10) to (25,10,100)

Yes. Each generation of a GDG can be considered as a separate data set. Note that doing so may cause problems if you have jobs that reference the GDG base instead of relative or absolute generation.

Assuming you mean a single data set that is submitted to the system via a TSO SUBMIT command or via the internal reader in a batch job, there is no real limit. Your system has a limit on the total number of jobs that can be in the system at one time, set in the JES initialization parameters, but the...

Google let me find a reference to this JCL //STEP0100 EXEC PGM=PAN#1 //PANDD1 DD DSN=PROD.PANAVALET.SOURCE,DISP=SHR //PDSOUT DD DSN=OUTPUT.PDS,DISP=SHR //SYSPRINT DD SYSOUT=* //SYSIN DD * ++OPTION OUTPUT,PDSOUT,MEMBERNAME ++WRITE WORK,MEMBERNAME /* which purportedly works if there are no ++INCLUDE s...

Syncsort is a sort product produced by an IBM competitor (named Syncsort). CA-Sort is a sort product produced by an IBM competitor (named CA). DFSORT is the IBM sort product. EXEC PGM=SORT or EXEC PGM=ICEMAN are typically executing IBM's sort product, although some sites use aliases for Syncsort so ...

From what I recall, and it has been a while since I used DB2, QMF is a reporting tool whereas SPUFI is merely an SQL execution tool. Both will execute queries, but QMF gives you more control over how the results will appear.

The Panvalet documentation has information on the JCL to use for batch copies and the TSO panels for online (TSO) copy. Panvalet libraries (IIRC) are not "normal" PDS libraries and hence you cannot use IEBCOPY or ISPF functions directly -- only through the provided JCL / panels.

If your site has a license for Syncsort, you have access to the manuals -- possibly hard copy, possibly through a company-internal web site, or by going to the Syncsort web site and accessing them there. However, manuals under copyright cannot be posted nor linked to here; if your site does not have...

TSO ISPF 3.4 is usually the best way to determine the creation data of a data set.

A.B.C.G0001V00 references GDG base A.B.C and generation 1. Version 0 is normal and typical. The ONLY way to create version 01 is to write to A.B.C.G0001V01 -- if you do so, the system will uncatalog A.B.C.G0001V00 and catalog A.B.C.G0001V01 in its place. A GDG allows you to define up to 255 generati...

Basic Direct Access Method -- allows retrieval of data by relative block number. VSAM RRDS is the equivalent VSAM data type. With BDAM, you have a method to generate the block number (hash or sequence number or whatever) and that block contains the data record. There is no key required, you can read...

Concatenation works the same for load libraries as well as copy books and source code ... the libraries are searched in the sequence they are specified in the JCL, and the first data set that contains the member has that member used. There may be additional data sets that contain the member below th...

- Using SORT allows you to remove duplicate records - One procedure can invoke another procedure, but overrides in the nested procedure are not allowed - x37 abends are disk data set space problems; the fix will depend upon the specific problem - IEBEDIT is used to copy JCL and include / omit steps ...