Prerequisites for concatenating datasets What are the conditions that are required for concatenating datasets or PDS I have read in tutorials somewhere that these need to have same LRECL, is it correct? Can some one point to all the conditions for concatenating? Like conditions for concatenation of Ps and concatenating PDS etc “; ; ; […]
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Subquery used in Where returns more than one row What will happen if the subquery in the following SQL returns more than one value? SELECT Name, Marks FROM Student WHERE Class = (SELECT Class FROM School  WHERE Class  =’II%’) 1.     The outer query will run with the first value fetched from sub-query 2.     It will
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Compiling COBOL in ASCII mode in mainframe express There is a need in my project where we are migrating the data from EBCDIC to ASCII mode. For data part we would be coverting the data using programs but for existing programs to run in ASCII mode, we will need to compile them in ASCII mode.
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I have a PDS and a Backup of the PDS taken at a recent time. I have been adding some members and modifying few members Now I want to compare the PDS with its backup to find out the members that have changed/added since the last backup. How should I compare the two PDS? “;
How to run jobs in ASCII charset on mainframe express I am setting up by mainframe express project to be run in ASCII mode, for this I am using the compiler directive of CHARSET(ASCII). But when I run the jobs, spool is still showing that chararcter set used by JES is EBCDIC. Can any one give pointers
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Last modified date of a PS file Can any one tell me how to see the last modified date of a physical sequential file? By checking the info of the PS file we can see the date on which dataset is created or refrenced but I am unable to find out the date on which a dataset was
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Convert easytrieve to COBOL The company that I work for has the easytrieve licence getting expired and they do not wish to renew the licence instead they are planning to get rid of easytrieve all together. The company has decided to work on a project to convert all the easytrive programs to COBOL programs. Is
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Is it possible to password protect datasets? Is there any possibility of locking a dataset or PDS on mainframe using a password? I want to secure few of my datasets which can only be accessed upon providing the password. Actually, these datasets are to be maintained by client and they want that only authorised users be able
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Difference between Library and PDS I noticed that while allocating a dataset using 3.2 option we have different “Data set name type” which we can specify. The allowable values I can see are the following (LIBRARY, HFS, PDS, LARGE, BASIC,  EXTREQ, EXTPREF or blank)     I would give “PDS” for defining a PDS
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