bdfd1m0rDatabase Administration

DSECT and DBDEF for the Passenger Number File

Macro IR21DF is the DSECT for the passenger number file. The following example shows the DSECT and the DBDEF for this index file.

DSECT

Figure 19 shows the DSECT used to define the passenger number file.

Figure 19. DSECT to Define the Passenger Number File

         MACRO
&LABEL   IR21DF &REG=,&SUFFIX=,&ORG=,&ACPDB=
.*
*********************************************************************
*                                                                   *
*   IR21DF  PASSENGER NUMBER FILE (INDEX)                           *
*                            DATE:11APR91                           *
*                                                                   *
*********************************************************************
 
         GBLB  &IR21DF1      1ST TIME CALLED SWITCH
         COPY  DBGBL         COPY TPFDF GLOBAL DEFINITIONS
         COPY  DBLCL         COPY TPFDF LOCAL DEFINITIONS
&NAM     SETC  'IR21DF       '    DOC NAME
&DATE    SETC  '08FEB91'     UPDATE DATE
&VERS    SETC  '00'          VERSION NUMBER
.********************************************************************
.       DEFINITIONS FOR TPFDF                                       *
.********************************************************************
&SW00WID SETC  '21'          FILE ID
&SW00WRS SETC  'L4'          BLOCK SIZE
&SW00ARS SETC  'L2'          ALTERNATE BLOCK SIZE
&SW00RCT SETC  '#IR21DF'     FACE FILE TYPE
&SW00RBV SETC  '#TPFDB09'    FILE ALGORITHM
&SW00BOR SETC  '0'           BASE ORDINAL NUMBER
&SW00EOR SETC  '-1'          END ORDINAL NBR
&SW00ILV SETC  '0'           MAXIMUM INTERLEAVING FACTOR IF APPLIC
&SW00PTN SETC  '0'           NUMBER OF PARTITIONS
&SW01EO# SETC  '&SW00EOR'    RECOUP END ORDINAL
&SW02FIL SETC  'IR21DF'      FILE DSECT NAME
&SW00OP1 SETC  '00000000'    OPT BYTE1
&SW00OP2 SETC  '00000110'    OPT BYTE2
&SW00OP3 SETC  '00000000'    OPT BYTE3
&SW00TQK SETC  '15'          HIGHEST TLREC
.*******************************************************************
         COPY  DBCOD         COPY DSECT DEFINITION FUNCTIONS
         AIF   ('&IR21DF1' EQ '1').NOT1ST
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*  DESCRIPTION OF IR21DF                                            *
*                                                                   *
*  1. DATA AREA NAME                                                *
*                                                                   *
*     PASSENGER NUMBER INDEX FILE                                   *
*                                                                   *
*  2. MEMBER NAME                                                   *
*                                                                   *
*     IR21DF                                                        *
*                                                                   *
*  3. INVOCATION                                                    *
*                                                                   *
*     IR21DF REG=RGD,                                               *
*           (SUFFIX=X),                                             *
*           (ORG=IR21HDR)                                           *
*                                                                   *
*  4. GENERAL CONTENTS AND USAGE                                    *
*                                                                   *
*  4.1. ROLE IN SYSTEM                                              *
*                                                                   *
*       THE IR21DF CONTAINS INDEX POINTERS TO THE PASSENGER FILE    *
*       BASED ON THE UNIQUE PASSENGER NUMBER.                       *
*                                                                   *
*  4.2. DATA LAYOUT                                                 *
*                                                                   *
*       STANDARD TPFDF FILE HEADER                                  *
*                                                                   *
*       ABV.: CREATOR (C), USERS (U), AND PURGER (P) OF EACH LREC.  *
*                                                                   *
*       PRIMARY KEY     USAGE                                       *
*          80           PASSENGER NUMBER LOGICAL RECORD             *
*                                                                   *
*  4.3. PROGRAMMING ASPECTS                                         *
*                                                                   *
*  4.3.1. PROGRAMMING RESTRICTIONS                                  *
*                                                                   *
*         NONE.                                                     *
*                                                                   *
*  4.3.2. PROGRAMMING TECHNIQUES AND USAGE                          *
*                                                                   *
*         STANDARD TPFDF LREC LOCATION TECHNIQUE USING:             *
*         - PRIMARY KEY                                             *
*                                                                   *
*  5. STORAGE FACTORS                                               *
*                                                                   *
*  5.1. BLOCK SIZE                                                  *
*                                                                   *
*       DEFINED IN DBDEF.                                           *
*                                                                   *
*  5.2. FILE REQUIREMENTS                                           *
*                                                                   *
*       THE NUMBER OF FILES ALLOCATED IS 7999.                      *
*                                                                   *
*  5.3. ACCESSING SCHEME                                            *
*                                                                   *
*       (DESCRIBE ALGORITHM, PATHS, UP/DOWN ORGANIZATION AND        *
*       CROSS RELATION OF LRECS ETC)                                *
*       THE IR21DF IS ACCESSED BY PATH=1 OF THE PASSENGER FILE.     *
*                                                                   *
*  6. DATA CONTROL                                                  *
*                                                                   *
*  6.1. CHAINING AND OVERFLOW                                       *
*                                                                   *
*       STANDARD TPFDF CHAINING.                                    *
*                                                                   *
*  6.2. DATA FIELD ADDRESSING                                       *
*                                                                   *
*       OFFSET WITHIN STANDARD TPFDF LREC.                          *
*                                                                   *
*  7. IMPLEMENTATION REQUIREMENTS                                   *
*                                                                   *
*  8. REFERENCES                                                    *
*                                                                   *
*  9. COMMENTS                                                      *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
         EJECT
         AIF   ('&SW00WRS' EQ '').CHECKID
#IR21DFS EQU   &SW00WRS      BLOCK SIZE
.CHECKID AIF   ('&SW00WID' EQ '').NOT1ST
#IR21DFI EQU   C'&SW00WID'   FILE ID
.NOT1ST  ANOP
************************************************************************
*        STANDARD TPFDF HEADER                                         *
************************************************************************
IR21HDR&CG1 DS  CL16         STANDARD FILE HEADER
            DS  CL10         STANDARD TPFDF HEADER
IR21VAR&CG1 EQU *            START OF VARIABLE USER-AREA
IR21HDL&CG1 EQU IR21VAR&CG1-IR21HDR&CG1  HEADER-LENGTH UP TO IR21VAR
            ORG IR21HDR&CG1
IR21REC&CG1 DS  0CL1         1ST RECORD START (1=VARIABLE,ELSE SIZE)
IR21SIZ&CG1 DS  H            SIZE OF LOGICAL RECORD
IR21KEY&CG1 DS  X            LOGICAL RECORD IDENTIFIER
         AIF   ('&IR21DF1' EQ '1').KEYEQ  GO IF NOT FIRST ISSUE
*************************************************************************
*        EQUATE OF LOGICAL RECORD KEYS (KEY AND LENGTH)                 *
*************************************************************************
.*                    USE KEY #IR21K80 IF ONLY ONE KEY
.*                    #IR21K00-#IR21K0F ARE RESERVED FOR TPFDF
.*                    #IR21KF0-#IR21KFF ARE RESERVED FOR TPFDF
#IR21K80 EQU   X'80'         LOGICAL RECORD KEY X'80'
#IR21L80 EQU   IR21E80&CG1-IR21REC&CG1  LENGTH OF LOGICAL RECORD X'80'
&IR21DF1 SETB  (1)           INDICATE 1ST TIME THROUGH
.KEYEQ   ANOP
IR21ORG&CG1 EQU *            START VARIABLE DATA PER LREC
*************************************************************************
*        DESCRIPTION OF  FIRST  LOGICAL RECORD TYPE                     *
*************************************************************************
IR21FAD&CG1 DS  0AL4         F.A. OF POINTER USED BY DBDEF
IR21FA1&CG1 DS  AL4          F.A. OF POINTER TO DETAIL/LOWER LEVEL INDX
IR21RCC&CG1 DS  0AL1         CHECK BYTE USED BY DBDEF
IR21RC1&CG1 DS  AL1          CHECK BYTE
IR21A80&CG1 DS  0CL8         KEYAREA
IR21NBR&CG1 DS  CL8          UNIQUE PASSENGER NUMBER
IR21E80&CG1 EQU *            END OF LOGICAL RECORD WITH KEY = X'80'
.*
         ORG IR21ORG&CG1
.*
.*****************************************************************
         AIF   (&BG1).MACEXIT          GO IF INTERNAL USAGE
&SYSECT  CSECT
         AIF   ('&REG' EQ '').MACEXIT  GO IF REG= NOT SPECIFIED
.GEUSING ANOP                          GENERATE USING
         USING &DSN,&REG
.MACEXIT ANOP
         SPACE 1
         MEND

DBDEF

Figure 20 shows the position of IR21DF in the file structure.

Figure 20. Position of IR21DF in the File Structure


         DBDEF FILE=IR21DF,             -
               (ITK=#IR21K80,ID2=,      -
               INDEX=(IR24DF,0))
Note:
IR20DF and IR21DF both contain references to IR24DF. Specify RCI processing for these files. (See Figure 53 for more details of RCI processing.)