In this example, members are copied from three input partitioned data sets (DATASET1, DATASET5, and DATASET6) to an existing output partitioned data set (DATASET2). The sequence in which the control statements occur controls the manner and sequence in which partitioned data sets are processed. Figure 1 shows the input and output data sets before and after processing.

Figure 1. Copying from Three Input Partitioned Data Sets

  //COPY     JOB   ...
  //JOBSTEP  EXEC  PGM=IEBCOPY
  //SYSPRINT DD  SYSOUT=A
  //IN1      DD  DSNAME=DATASET1,UNIT=disk,VOL=SER=111112,
  //             DISP=SHR
  //IN5      DD  DSNAME=DATASET5,UNIT=disk,VOL=SER=111114,
  //             DISP=OLD
  //OUT2     DD  DSNAME=DATASET2,UNIT=disk,VOL=SER=111115,
  //             DISP=(OLD,KEEP)
  //IN6      DD  DSNAME=DATASET6,UNIT=disk,VOL=SER=111117,
  //             DISP=(OLD,DELETE)
  //SYSUT3   DD  UNIT=SYSDA,SPACE=(TRK,(1))
  //SYSIN    DD  *
  COPYOPER   COPY  OUTDD=OUT2
                   INDD=IN1
                   INDD=IN6
                   INDD=IN5
  /*

The control statements are discussed below:

• IN1 DD defines a partitioned data set (DATASET1). This data set contains three members (A, B, and F) in fixed format with a logical record length of 80 bytes and a block size of 80 bytes.
• IN5 DD defines a partitioned data set (DATASET5). This data set contains two members (A and C) in fixed blocked format with a logical record length of 80 bytes and a block size of 160 bytes.
• OUT2 DD defines a partitioned data set (DATASET2). This data set contains two members (C and E) in fixed-block format. The members have a logical record length of 80 bytes and a block size of 240 bytes.
• IN6 DD defines a partitioned data set (DATASET6). This data set contains three members (B, C, and D) in fixed-block format with a logical record length of 80 bytes and a block size of 400 bytes. This data set is to be deleted when processing is completed.
• SYSUT3 defines a temporary spill data set.
• SYSIN DD defines the control data set, which follows in the input stream. The data set contains a COPY statement and three INDD statements.
• COPY indicates the start of the copy operation. The OUTDD parameter specifies DATASET2 as the output data set.
• The first INDD statement specifies DATASET1 as the first input data set to be processed. All members (A, B and F) are copied to DATASET2.
• The second INDD statement specifies DATASET6 as the second input data set to be processed. Processing occurs as follows:
  1. Since replacement is not specified, members B and C, which already exist in DATASET2, are not copied to DATASET2.
  2. Member D is copied to DATASET2.
  3. All members in DATASET6 are lost when the data set is deleted.
• The third INDD statement specifies DATASET5 as the third input data set to be processed. No members are copied to DATASET2 because all exist in DATASET2.