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why do we use vsam file thn seqential files ?
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Answer Posted / rajesh
ps files are stored in tape but esds cannot be stored in tape
and ps file cannot becreated alternate index but esds can be created
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OPEN INPUT StudentFile READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ PERFORM UNTIL EndOfStudentFile DISPLAY StudentId SPACE StudentName SPACE CourseCode SPACE YOBirth READ StudentFile AT END SET EndOfStudentFile TO TRUE END-READ END-PERFORM CLOSE StudentFile STOP RUN what will be output
Why is it required to have a keyed directed retrieval?
is it required that primary key values have to be unique? Do alternate key values have to be unique?
write a program to read from a VSAM file , there will be a 5 records to create name. empno. resignation and address to update in a db2 table and call another program using dynamic call to find the matching fields in program 1 to update in db2 table. anybody pls send de program for dis ? thanks in advance...
differentiate between sequential files and esds files in vsam?
what are s0c1, s0c4, s0c5, s0c7 abends?
What is the function of linear dataset in vsam?
what is meant by s0c-07 system abend codes?
how can you load a vsam data set with records ?
In a KSDS file, key is missing for one record. How to insert the key for that particular record from back up file. Is there any sorting needed for the back up file before the key insertion?
how do you create an alternate index ?
is delete operation supported in an esds? Is rewrite operation possible in esds?
State the differences between vsam and non-vsam files?
how do you define an altindx ? How do you use altindxs in batch, cics programs?
What is recovery parameters in define cluster command?
