bdfd1m0qDatabase Administration

DSECT and DBDEF for the Passenger Name File

Macro IR20DF is the DSECT for the passenger name file. The following example shows the DSECT and the DBDEF for this index file.

DSECT

Figure 17 shows the DSECT used to define the passenger name file.

Figure 17. DSECT to Define the Passenger Name File

         MACRO
&LABEL   IR20DF &REG=,&SUFFIX=,&ORG=,&ACPDB=
.*
*************************************************************************
*                                                                       *
*   IR20DF   PASSENGER NAME FILE (INDEX)                                *
*                            DATE: 11 APRIL 1991                        *
*                                                                       *
*************************************************************************
         GBLB  &IR20DF1      1ST TIME CALLED SWITCH
         COPY  DBGBL         COPY TPFDF GLOBAL DEFINITIONS
         COPY  DBLCL         COPY TPFDF LOCAL DEFINITIONS
&NAM     SETC  'IR20DF       '    DOC NAME
&DATE    SETC  '06FEB91'     UPDATE DATE
&VERS    SETC  '00'          VERSION NUMBER
.**********************************************************************
.*      DEFINITIONS FOR TPFDF                                         *
.**********************************************************************
&SW00WID SETC  '20'          FILE ID
&SW00WRS SETC  'L1'          BLOCK SIZE
&SW00RCT SETC  '#IR20DF'     FACE FILE TYPE
&SW00RBV SETC  '#TPFDB03'    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  'IR20DF'      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   ('&IR20DF1' EQ '1').NOT1ST
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*                                                                   *
*  DESCRIPTION OF IR20DF                                            *
*                                                                   *
*  1. DATA AREA NAME                                                *
*                                                                   *
*     PASSENGER NAME FILE                                           *
*                                                                   *
*  2. MEMBER NAME                                                   *
*                                                                   *
*     IR20DF                                                        *
*                                                                   *
*  3. INVOCATION                                                    *
*                                                                   *
*     IR20DF REG=RGD,                                               *
*           (SUFFIX=X),                                             *
*           (ORG=IR20HDR)                                           *
*  4. GENERAL CONTENTS AND USAGE                                    *
*                                                                   *
*  4.1. ROLE IN SYSTEM                                              *
*                                                                   *
*       THE PASSENGER NAME FILE CONTAINS INDEX POINTERS TO THE      *
*       PASSENGER FILE. THIS ALLOWS FAST ACCESS TO A PASSENGER      *
*       BY THE NAME.                                                *
*                                                                   *
*  4.2. DATA LAYOUT                                                 *
*                                                                   *
*       STANDARD TPFDF FILE HEADER                                  *
*                                                                   *
*       ABV.: CREATOR (C), USERS (U), AND PURGER (P) OF EACH LREC.  *
*                                                                   *
*       PRIMARY KEY     USAGE                                       *
*          80           PASSENGER NAME 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 #TPFDB03 ALGORITHM REQUIRES 17576 FIXED FILES           *
*                                                                   *
*  5.3. ACCESSING SCHEME                                            *
*                                                                   *
*       (DESCRIBE ALGORITHM, PATHS, UP/DOWN ORGANIZATION AND        *
*       CROSS RELATION OF LRECS ETC)                                *
*       THE FILE IS UP ORGANIZED. IT IS ACCESSED BY THE PATH=0      *
*                                                                   *
*       DEFINITION 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
#IR20DFS EQU   &SW00WRS      BLOCK SIZE
.CHECKID AIF   ('&SW00WID' EQ '').NOT1ST
#IR20DFI EQU   C'&SW00WID'   FILE ID
.NOT1ST  ANOP
*********************************************************************
*        STANDARD TPFDF HEADER                                      *
*********************************************************************
IR20HDR&CG1 DS  CL16         STANDARD FILE HEADER
            DS  CL10         STANDARD TPFDF HEADER
IR20VAR&CG1 EQU *            START OF VARIABLE USER-AREA
IR20HDL&CG1 EQU IR20VAR&CG1-IR20HDR&CG1  HEADER-LENGTH UP TO IR20VAR
            ORG IR20HDR&CG1
IR20REC&CG1 DS  0CL1         1ST RECORD START (1=VARIABLE,ELSE SIZE)
IR20SIZ&CG1 DS  H            SIZE OF LOGICAL RECORD
IR20KEY&CG1 DS  X            LOGICAL RECORD IDENTIFIER
         AIF   ('&IR20DF1' EQ '1').KEYEQ  GO IF NOT FIRST ISSUE
**********************************************************************
*        EQUATE OF LOGICAL RECORD KEYS (KEY AND LENGTH)              *
**********************************************************************
.*                    USE KEY #IR20K80 IF ONLY ONE KEY
.*                    #IR20K00-#IR20K0F ARE RESERVED FOR TPFDF
.*                    #IR20KF0-#IR20KFF ARE RESERVED FOR TPFDF
#IR20K80 EQU   X'80'         LOGICAL RECORD KEY X'80'
#IR20L80 EQU   IR20E80&CG1-IR20REC&CG1  LENGTH OF LOGICAL RECORD X'80'
&IR20DF1 SETB  (1)           INDICATE 1ST TIME THROUGH
.KEYEQ   ANOP
IR20ORG&CG1 EQU *            START VARIABLE DATA PER LREC
.*
**********************************************************************
*        DESCRIPTION OF  F I R S T  LOGICAL RECORD TYPE              *
**********************************************************************
IR20FAD&CG1 DS  0AL4         F.A. OF POINTER USED BY DBDEF
IR20FA1&CG1 DS  AL4          F.A. OF POINTER TO DETAIL/LOWER LEVEL IN
IR20RCC&CG1 DS  0AL1         CHECK BYTE USED BY DBDEF
IR20RC1&CG1 DS  AL1          CHECK BYTE
IR20A80&CG1 DS  0CL25        KEYAREA
IR20PNM&CG1 DS  CL25         PASSENGER NAME
IR20E80&CG1 EQU *            END OF LOGICAL RECORD WITH KEY = X'80'
.*
         ORG IR20ORG&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 18 shows the position of IR20DF in the file structure.

Figure 18. Position of IR20DF in the File Structure


    DBDEF FILE=IR20DF,             -
          (ITK=#IR20K80,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.)