Need SORT Jcl for the following problem

sen_1983us · New User Joined: 21 May 2005 Posts: 12 Location: Hyderabad

Is there any SYSIN command to sort-compare the following scenario

GDG(-1) - record length - 7 bytes
A1OCT18
A2OCT18
A3OCT17
A4OCT17

GDG(0) - record length - 7 bytes
A1OCT19
A2OCT18
A3OCT19
A4OCT17
A5OCT19

I should get the following output :
A1OCT19
A3OCT19
A5OCT19

GDG(0) and GDG(-1) should get compared:

1. if both has the same record , it shouldn't come in the output ,ex: A2OCT18 & A4OCT17 (A duplicate record would mean all the fields within the records have a one to one match. )

2. if new record[it shldn't be in GDG(-1)] was found in GDG(0) , it shld come in output , ex:A5OCT19

3. when comparing , if any of the record got changed from the previous version , it shld come in output, ex:A1OCT19 & A3OCT19.

I want this to be done in JCL , not in the program.
If any one of u know how to do this , pls send me the command.

Frank Yaeger · Posted: Sun Oct 23, 2005 9:29 pm Post subject:

Here's a DFSORT/ICETOOL job that will do what you asked for:

sen_1983us · New User Joined: 21 May 2005 Posts: 12 Location: Hyderabad

HI Frank,

i'm describing my understanding if any wrong please correct me...

CON DD DSN=... GDG(-1)
DD DSN=... GDG(0)

in the above statements ur defining the GDG's

T1 DD DSN=&&T1 this is temporary file used to compare and check dups..

TOOLIN DD *
SELECT FROM(CON) TO(T1) ON(1,7,CH) NODUPS
SELECT FROM(T1) TO(OUT) ON(1,2,CH) LAST

here u r comparing in first step and making output in second step..

Regards
senthil

Frank Yaeger · Posted: Mon Oct 24, 2005 12:02 am Post subject:

Yes, CON concatenates the -1 input GDG and the 0 input GDG in that order.

Yes, T1 is a temporary file.

The first SELECT only keeps the nondup records between the two files based on the key in positions 1-7. The result is placed in T1.

The second SELECT uses the remaining records as input (T1) and selects the last record with each key in position 1-2 for output (OUT).

For complete details on DFSORT's ICETOOL, see Chapter 6 of "z/OS DFSORT Application Programming Guide". You can access all of the DFSORT books online, including that one, from:

www.ibm.com/servers/storage/support/software/sort/mvs/srtmpub.html