Example for Changing the Data Set Record Format

For this example, the original DASDL description is as follows: 

PARAMETERS
 (
  ALLOWEDCORE = 20000
 );
D DATA SET
 (
  A ALPHA(10);
  B BOOLEAN;
  N NUMBER(S5,2);
 );
S SET OF D KEY A;

To change a data set record format, perform the following steps:

  1. Alter the DASDL statements to the following. The asterisks (*) indicate changed lines. 

    *  UPDATE;
   PARAMETERS
   (
*   ALLOWEDCORE = 30000
   );
   D DATA SET
    (
     A ALPHA(10);
*    G GROUP
*     (
*      P FIELD(8);
*      Q REAL;
*     );
*    N NUMBER(S5,2) INITIALVALUE 0;
    );
*  S SET OF D
*    KEY A
*    CHECKSUM = TRUE;

  2. Compile the DASDL description.

  3. Compile the DMSUPPORT library.

  4. Generate and run the Reorganization program.

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