ABAP Select data from SAP table /SDF/DB6PMCD2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SDF/DB6PMCD2 table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to /SDF/DB6PMCD2. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the /SDF/DB6PMCD2 table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_/SDF/DB6PMCD2 TYPE STANDARD TABLE OF /SDF/DB6PMCD2,
      WA_/SDF/DB6PMCD2 TYPE /SDF/DB6PMCD2,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: </SDF/DB6PMCD2> TYPE /SDF/DB6PMCD2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SDF/DB6PMCD2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SDF/DB6PMCD2
  INTO TABLE IT_/SDF/DB6PMCD2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/DB6PMCD2
*  INTO TABLE @DATA(IT_/SDF/DB6PMCD22).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_/SDF/DB6PMCD2 INDEX 1 INTO DATA(WA_/SDF/DB6PMCD22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SDF/DB6PMCD2 ASSIGNING </SDF/DB6PMCD2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/DB6PMCD2>-COMPTIME = 1.
</SDF/DB6PMCD2>-PARTITN = 1.
</SDF/DB6PMCD2>-CALLERFLAG = 1.
</SDF/DB6PMCD2>-DBMSTRTTME = 1.
</SDF/DB6PMCD2>-PRGVERS = 1.

ENDLOOP.

LOOP AT IT_/SDF/DB6PMCD2 INTO WA_/SDF/DB6PMCD2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/DB6PMCD2-TSM_MGMT, sy-vline,
  WA_/SDF/DB6PMCD2-TSM_NODE, sy-vline,
  WA_/SDF/DB6PMCD2-TSM_OWNER, sy-vline,
  WA_/SDF/DB6PMCD2-TSM_PW, sy-vline,
  WA_/SDF/DB6PMCD2-AP_CTL_HP, sy-vline,
  WA_/SDF/DB6PMCD2-APPLHEAPSZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/DB6PMCD2 you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_/SDF/DB6PMCD2 TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_/SDF/DB6PMCD2 INTO WA_/SDF/DB6PMCD2.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SDF/DB6PMCD2_STR, 
COMPTIME TYPE STRING,
PARTITN TYPE STRING,
CALLERFLAG TYPE STRING,
DBMSTRTTME TYPE STRING,
PRGVERS TYPE STRING,
TSM_MGMT TYPE STRING,
TSM_NODE TYPE STRING,
TSM_OWNER TYPE STRING,
TSM_PW TYPE STRING,
AP_CTL_HP TYPE STRING,
APPLHEAPSZ TYPE STRING,
AUTORESTRT TYPE STRING,
AVG_APPLS TYPE STRING,
BUFFPAGE TYPE STRING,
CATCA_SZ TYPE STRING,
CHGPGS_THR TYPE STRING,
CPPROTECT TYPE STRING,
DBHEAP TYPE STRING,
DFT_DEGREE TYPE STRING,
DFT_EXTSZ TYPE STRING,
DFT_LDRECS TYPE STRING,
DFT_PF_SZ TYPE STRING,
DFT_QOPT TYPE STRING,
DFT_SQLMW TYPE STRING,
DIR_OBJ_NM TYPE STRING,
DISCOVER TYPE STRING,
DL_EXPINT TYPE STRING,
DL_NIM_CPS TYPE STRING,
DL_TM_DROP TYPE STRING,
DLCHKTIME TYPE STRING,
ESTOR_SQSZ TYPE STRING,
INDEXREC TYPE STRING,
INDEXSORT TYPE STRING,
LCKLIST TYPE STRING,
LCKTMOUT TYPE STRING,
LOGBUFSZ TYPE STRING,
LOGFILSIZ TYPE STRING,
LOGPRIMARY TYPE STRING,
LOGRETAIN TYPE STRING,
LOGSECOND TYPE STRING,
MAXAPPLS TYPE STRING,
MAXFILOP TYPE STRING,
MAXLOCKS TYPE STRING,
MINCOMMIT TYPE STRING,
NEWLOGPATH TYPE STRING,
NUM_EST_SG TYPE STRING,
NUM_FRQVAL TYPE STRING,
NUM_IOCLNS TYPE STRING,
NUM_IOSVRS TYPE STRING,
NUM_QUANT TYPE STRING,
PCKCACHESZ TYPE STRING,
REC_HIS_RT TYPE STRING,
SEQDETECT TYPE STRING,
SOFTMAX TYPE STRING,
SORTHEAP TYPE STRING,
STA_HP_SZ TYPE STRING,
STMTHEAP TYPE STRING,
USEREXIT TYPE STRING,
UTIL_HP_SZ TYPE STRING,
BACKUP_PND TYPE STRING,
CODEPAGE TYPE STRING,
CODESET TYPE STRING,
COUNTRY TYPE STRING,
DB_CONSIST TYPE STRING,
DB_LEVEL TYPE STRING,
LOG_RET_ST TYPE STRING,
LOGHEAD TYPE STRING,
LOGPATH TYPE STRING,
MULTPG_ALO TYPE STRING,
NUMSEGS TYPE STRING,
REL_LEVEL TYPE STRING,
REST_PEND TYPE STRING,
RFWD_PEND TYPE STRING,
TERRITORY TYPE STRING,
UEXIT_STAT TYPE STRING,
DYNQRYMGMT TYPE STRING,
DFT_REFAGE TYPE STRING,
DL_UPPER TYPE STRING,
DL_TOKEN TYPE STRING,
NUM_DBBKPS TYPE STRING,
COLLATESEQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/DB6PMCD2_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_/SDF/DB6PMCD2_STR-COMPTIME sy-vline 
WA_/SDF/DB6PMCD2_STR-PARTITN sy-vline 
WA_/SDF/DB6PMCD2_STR-CALLERFLAG sy-vline 
WA_/SDF/DB6PMCD2_STR-DBMSTRTTME sy-vline 
WA_/SDF/DB6PMCD2_STR-PRGVERS sy-vline 
WA_/SDF/DB6PMCD2_STR-TSM_MGMT sy-vline 
WA_/SDF/DB6PMCD2_STR-TSM_NODE sy-vline 
WA_/SDF/DB6PMCD2_STR-TSM_OWNER sy-vline 
WA_/SDF/DB6PMCD2_STR-TSM_PW sy-vline 
WA_/SDF/DB6PMCD2_STR-AP_CTL_HP sy-vline 
WA_/SDF/DB6PMCD2_STR-APPLHEAPSZ sy-vline 
WA_/SDF/DB6PMCD2_STR-AUTORESTRT sy-vline 
WA_/SDF/DB6PMCD2_STR-AVG_APPLS sy-vline 
WA_/SDF/DB6PMCD2_STR-BUFFPAGE sy-vline 
WA_/SDF/DB6PMCD2_STR-CATCA_SZ sy-vline 
WA_/SDF/DB6PMCD2_STR-CHGPGS_THR sy-vline 
WA_/SDF/DB6PMCD2_STR-CPPROTECT sy-vline 
WA_/SDF/DB6PMCD2_STR-DBHEAP sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_DEGREE sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_EXTSZ sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_LDRECS sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_PF_SZ sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_QOPT sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_SQLMW sy-vline 
WA_/SDF/DB6PMCD2_STR-DIR_OBJ_NM sy-vline 
WA_/SDF/DB6PMCD2_STR-DISCOVER sy-vline 
WA_/SDF/DB6PMCD2_STR-DL_EXPINT sy-vline 
WA_/SDF/DB6PMCD2_STR-DL_NIM_CPS sy-vline 
WA_/SDF/DB6PMCD2_STR-DL_TM_DROP sy-vline 
WA_/SDF/DB6PMCD2_STR-DLCHKTIME sy-vline 
WA_/SDF/DB6PMCD2_STR-ESTOR_SQSZ sy-vline 
WA_/SDF/DB6PMCD2_STR-INDEXREC sy-vline 
WA_/SDF/DB6PMCD2_STR-INDEXSORT sy-vline 
WA_/SDF/DB6PMCD2_STR-LCKLIST sy-vline 
WA_/SDF/DB6PMCD2_STR-LCKTMOUT sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGBUFSZ sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGFILSIZ sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGPRIMARY sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGRETAIN sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGSECOND sy-vline 
WA_/SDF/DB6PMCD2_STR-MAXAPPLS sy-vline 
WA_/SDF/DB6PMCD2_STR-MAXFILOP sy-vline 
WA_/SDF/DB6PMCD2_STR-MAXLOCKS sy-vline 
WA_/SDF/DB6PMCD2_STR-MINCOMMIT sy-vline 
WA_/SDF/DB6PMCD2_STR-NEWLOGPATH sy-vline 
WA_/SDF/DB6PMCD2_STR-NUM_EST_SG sy-vline 
WA_/SDF/DB6PMCD2_STR-NUM_FRQVAL sy-vline 
WA_/SDF/DB6PMCD2_STR-NUM_IOCLNS sy-vline 
WA_/SDF/DB6PMCD2_STR-NUM_IOSVRS sy-vline 
WA_/SDF/DB6PMCD2_STR-NUM_QUANT sy-vline 
WA_/SDF/DB6PMCD2_STR-PCKCACHESZ sy-vline 
WA_/SDF/DB6PMCD2_STR-REC_HIS_RT sy-vline 
WA_/SDF/DB6PMCD2_STR-SEQDETECT sy-vline 
WA_/SDF/DB6PMCD2_STR-SOFTMAX sy-vline 
WA_/SDF/DB6PMCD2_STR-SORTHEAP sy-vline 
WA_/SDF/DB6PMCD2_STR-STA_HP_SZ sy-vline 
WA_/SDF/DB6PMCD2_STR-STMTHEAP sy-vline 
WA_/SDF/DB6PMCD2_STR-USEREXIT sy-vline 
WA_/SDF/DB6PMCD2_STR-UTIL_HP_SZ sy-vline 
WA_/SDF/DB6PMCD2_STR-BACKUP_PND sy-vline 
WA_/SDF/DB6PMCD2_STR-CODEPAGE sy-vline 
WA_/SDF/DB6PMCD2_STR-CODESET sy-vline 
WA_/SDF/DB6PMCD2_STR-COUNTRY sy-vline 
WA_/SDF/DB6PMCD2_STR-DB_CONSIST sy-vline 
WA_/SDF/DB6PMCD2_STR-DB_LEVEL sy-vline 
WA_/SDF/DB6PMCD2_STR-LOG_RET_ST sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGHEAD sy-vline 
WA_/SDF/DB6PMCD2_STR-LOGPATH sy-vline 
WA_/SDF/DB6PMCD2_STR-MULTPG_ALO sy-vline 
WA_/SDF/DB6PMCD2_STR-NUMSEGS sy-vline 
WA_/SDF/DB6PMCD2_STR-REL_LEVEL sy-vline 
WA_/SDF/DB6PMCD2_STR-REST_PEND sy-vline 
WA_/SDF/DB6PMCD2_STR-RFWD_PEND sy-vline 
WA_/SDF/DB6PMCD2_STR-TERRITORY sy-vline 
WA_/SDF/DB6PMCD2_STR-UEXIT_STAT sy-vline 
WA_/SDF/DB6PMCD2_STR-DYNQRYMGMT sy-vline 
WA_/SDF/DB6PMCD2_STR-DFT_REFAGE sy-vline 
WA_/SDF/DB6PMCD2_STR-DL_UPPER sy-vline 
WA_/SDF/DB6PMCD2_STR-DL_TOKEN sy-vline 
WA_/SDF/DB6PMCD2_STR-NUM_DBBKPS sy-vline 
WA_/SDF/DB6PMCD2_STR-COLLATESEQ sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.