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Yes. Because the alternate key would first locate the
primary key, which in turn locates the actual record. Needs
twice the number of I/Os.
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what do you mean by a shareoptions parameter (shr) in define cluster command?
what how do you initialize a vsam file before any operation? A vsam with alternate index?
In a file(PS), we dont know how many records are there. requirement is divide half n half the records n insert into 2 another files(PS).
looking at the basic definition of VSAM file how to recognize whether it is a KSDS OR RRDS OR ESDS ?
What is a path?
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
What is the purpose of relative record data set used in vsam?
How vsam datasets are cataloged?
Assuming that the DEFINE JCL is not available, how do you get info about a VSAM file's organisation?
How do you decide on optimum values for CI, FREESPACE etc...?
What is FREESPACE ?
What is VERIFY command ? when do you use this command?? What actually it does ??
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