Difference between ps, esds
Answers were Sorted based on User's Feedback
Answer / vs kumar
PS Stands for Physical sequential dataset. ESDS stands for
Entry sequenced dataset and its VSAM dataset.
In ESDS records are processed one at a time in order which
they have loaded.
| Is This Answer Correct ? | 3 Yes | 0 No |
Vs Kumar is correct. But he forget to mention one thing.
PS files is accessed normally whereas ESDS is access through
the VSAM (Virtual Storage Access Method). VSAM is not a file,
It just a method or process that How to access the file.
Actually, PS and ESDS are same in the functionality wise.
But it is different as the access method used. ESDS will be fast access-able.
Please correct me, if I'm wrong.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / lu
PS = physical file, flat file
1) you can backup on tape...
esds = vsam file, u define by IDCAMS
1) you can't backup on tape...
there are many differences ....read vsam book to know ...
| Is This Answer Correct ? | 0 Yes | 6 No |
What will happen if we move SPACES to numeric field and ZEROES to alphabetic field?
i made it to stage 3 of an interview process wednessday they will quiz my knowledge again face to face for an analyst role recruiter said it will be based on Business requirements system is cobol and good ideas what they might ask etc
When is a scope terminator mandatory?
I have program P1 which calls file F1 which has 100 records and following structure 001 .................. 002 .................. 003 .................. 098 .................... 099 ................... 100 .................... Now I want to read these files and write these records in file F2 in following manner. 001 ...... 051 ..... 002 ...... 052 ..... 003 ...... 053 ..... .......... ....... .......... ....... .......... ....... 048 ........ 098 ...... 049 .......... 099 ....... 050 .... 100 ......
please..could u give an example about USAGE IS POINTER ..and explain why and when we use it ?
which is Best IBM Mainframe Training and Placement Institute in Ameerpet Hyderabad
What is the difference between a binary search and a sequential search?
Can anyone explain me CALL procedure in COBOL.Does it carries similarities like call by reference in C.
i have a variable block which is used in my cobol program as input file having records of 4080 after compilation while runing the program im getiing file attribut mismatch and it is saying tht the record length of the file is 4084 can any one knw the answer how to reslove it ?
Difference between lrecl, blksize among PS, PDS issues? i.e in jcl at dcb
i WANT ALL ERROR codes IN CICS and DB2
In COBOL "BEFORE" advancing is there or not ?