 Related Questions What are the keywords associated with DCB? How can you specify DCB information? What is the OS precedence for obtaining that DCB information, ie. where does the system look for it first? The keywords associated with the DCB parameter are LRECL, RECFM, BLKSIZE and DSORG. The DCB information can be supplied in the DD statement. The sysem looks for DCB information in the program code first. DCB stands for data control block; it is a keyword for the DD statement used to describe datasets. Keywords associated with it are BLKSIZE, DEN, LRECL and RECFM. Latest Answer : DCB parameter is used to provide file characteristics to use in completing Data control Block(DCB) for a datasetSyntax1. DCB=(subparameter,subparameter,..)2.DCB=dsname3.DCB=*.DDname4.DCB=*.stepname.ddname5.DCB=*.stepname.procstepname.ddnamesubparameter ... BLKSIZE specifies the number of bytes Latest Answer : lrecl means length of the files record length but blk size means the number of records mvs system will read together when we will issue a read command mvs does not read single record it reads whole block and put it in buffer next time it reads from buffer ... What does a sysin in ICEMAN utility do? what does Sort fields=copy coded in the sysin mean?SCBSM10E EXEC PGM=ICEMAN //SYSOUT DD SYSOUT=V //SORTLIB DD DSN=SORT.SORTLIB,DISP=SHR //SORTIN DD DSN=&&CB10AWDS,DISP= (OLD,DELETE) //SORTOUT DD DSN=&&CB10ASRT,DISP= (,PASS),SPACE=(CYL,(2,1),RLSE), // UNIT=TEMP,DCB= (RECFM=FB,LRECL=90,BLKSIZE=0)//SORTWK01 DD UNIT=TEMP,SPACE= (CYL,3,,CONTIG) //SORTWK02 DD UNIT=TEMP,SPACE= (CYL,3,,CONTIG) //SORTWK03 DD UNIT=TEMP,SPACE= (CYL Read Answers (2) | Asked by : Lavanya Latest Answer : Hi,I agree with the above answer.generally, for the purpose of compilation, compiler will accept the data in blocks.for example...if you specified LRECL=200, BLKSIZE=1000.when compiler takes one block of data....means it has 5 records completely...thenit ... Latest Answer : The largest first rule is one that has not been applicable for awhile. At one time this was necessary because of buffer allocations. This is no longer required. ... Read Answers (4) | Asked by : Abhishek
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