ABAP Select data from SAP table RDISB_API_GEN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RDISB_API_GEN 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 RDISB_API_GEN. 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 RDISB_API_GEN 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_RDISB_API_GEN TYPE STANDARD TABLE OF RDISB_API_GEN,
      WA_RDISB_API_GEN TYPE RDISB_API_GEN,
      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: <RDISB_API_GEN> TYPE RDISB_API_GEN.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RDISB_API_GEN
  INTO TABLE IT_RDISB_API_GEN.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RDISB_API_GEN
*  INTO TABLE @DATA(IT_RDISB_API_GEN2).
*--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_RDISB_API_GEN INDEX 1 INTO DATA(WA_RDISB_API_GEN2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RDISB_API_GEN ASSIGNING <RDISB_API_GEN>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RDISB_API_GEN>-BUKRS = 1.
<RDISB_API_GEN>-SARCHIV = 1.
<RDISB_API_GEN>-RANL = 1.
<RDISB_API_GEN>-RBO = 1.
<RDISB_API_GEN>-DTRANS = 1.

ENDLOOP.

LOOP AT IT_RDISB_API_GEN INTO WA_RDISB_API_GEN.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RDISB_API_GEN-TTRANS, sy-vline,
  WA_RDISB_API_GEN-NTRANS, sy-vline,
  WA_RDISB_API_GEN-NVERF, sy-vline,
  WA_RDISB_API_GEN-SBO_STATUS, sy-vline,
  WA_RDISB_API_GEN-SFGKZ, sy-vline,
  WA_RDISB_API_GEN-SRELSTAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RDISB_API_GEN 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_RDISB_API_GEN 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_RDISB_API_GEN INTO WA_RDISB_API_GEN.


*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.

*Conversion exit ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RDISB_API_GEN-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDISB_API_GEN-RANL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MPARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RDISB_API_GEN-MPARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDISB_API_GEN-MPARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field REXCHANGER
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RDISB_API_GEN-REXCHANGER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RDISB_API_GEN-REXCHANGER.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_RDISB_API_GEN_STR, 
BUKRS TYPE STRING,
SARCHIV TYPE STRING,
RANL TYPE STRING,
RBO TYPE STRING,
DTRANS TYPE STRING,
TTRANS TYPE STRING,
NTRANS TYPE STRING,
NVERF TYPE STRING,
SBO_STATUS TYPE STRING,
SFGKZ TYPE STRING,
SRELSTAT TYPE STRING,
CONTRCURR TYPE STRING,
IFULLPART TYPE STRING,
ADISBGROSS TYPE STRING,
PDISBQUOTE TYPE STRING,
INETGROSS TYPE STRING,
ADISCWITHH TYPE STRING,
AARRWITHH TYPE STRING,
AOTHERSWITHH TYPE STRING,
ADRAWINGS TYPE STRING,
AARRNOTWITHH TYPE STRING,
DWITHHUPTO TYPE STRING,
DEXCHANGER TYPE STRING,
MTEMPLNO TYPE STRING,
DFIXEDFROM TYPE STRING,
AVALIDATCAP TYPE STRING,
ADISBOFF TYPE STRING,
AAVDISOB TYPE STRING,
AREMDISOB TYPE STRING,
PDISBRATE TYPE STRING,
DFAELL TYPE STRING,
DDISPO TYPE STRING,
ADISBNET TYPE STRING,
ADISBNET_LC TYPE STRING,
MPARTNR TYPE STRING,
MBANKDET TYPE STRING,
MPAYMMETH TYPE STRING,
REXCHANGER TYPE STRING,
IINCL TYPE STRING,
IULT TYPE STRING,
MCALID TYPE STRING,
FTDISB TYPE STRING,
MNDID TYPE STRING,
REMIT_INFO TYPE STRING,
MPOSTCONTROL TYPE STRING,
MMANPOPROC TYPE STRING,
IPAYMTRANS TYPE STRING,
IPOSTSIM TYPE STRING,
DPOSTDATE TYPE STRING,
TPOST_TXT TYPE STRING,
IPOSTPROT TYPE STRING,
MPOSTPER TYPE STRING,
MPOSTAPPL TYPE STRING,
MLOCKUSER TYPE STRING,
MTEMPLNO_TXT TYPE STRING,
TXTXBO_TEXT TYPE STRING,
MCONF_STAT_LOAN TYPE STRING,
MCONF_STAT_BO TYPE STRING,
STATIC_TEXTS TYPE STRING,
TEXT TYPE STRING,
TDISB_TXT TYPE STRING,
TFT_DISB_TXT TYPE STRING,
TPARTNR_TXT TYPE STRING,
TBANKDET_TXT TYPE STRING,
TCAL_TXT TYPE STRING,
TSG_TXT TYPE STRING,
FLG_NO_ENQUEUE TYPE STRING,
FLG_NO_CONFIRMATION TYPE STRING,
FLG_NO_VDCFWAREHOUSE TYPE STRING,
FLG_CHG_DRAWING TYPE STRING,
FLG_ASYNCHRON_SAVE TYPE STRING,
FLG_NO_LOAN_INIT TYPE STRING,
FLG_NO_BO_INIT TYPE STRING,
FLG_NO_CORRESP TYPE STRING,
VDAUSZ TYPE STRING,
WITHHOLDPLANITEM TYPE STRING,
WITHHOLDOPENITEM TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
NO_DEFAULT_WITHHOLDING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RDISB_API_GEN_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_RDISB_API_GEN_STR-BUKRS sy-vline 
WA_RDISB_API_GEN_STR-SARCHIV sy-vline 
WA_RDISB_API_GEN_STR-RANL sy-vline 
WA_RDISB_API_GEN_STR-RBO sy-vline 
WA_RDISB_API_GEN_STR-DTRANS sy-vline 
WA_RDISB_API_GEN_STR-TTRANS sy-vline 
WA_RDISB_API_GEN_STR-NTRANS sy-vline 
WA_RDISB_API_GEN_STR-NVERF sy-vline 
WA_RDISB_API_GEN_STR-SBO_STATUS sy-vline 
WA_RDISB_API_GEN_STR-SFGKZ sy-vline 
WA_RDISB_API_GEN_STR-SRELSTAT sy-vline 
WA_RDISB_API_GEN_STR-CONTRCURR sy-vline 
WA_RDISB_API_GEN_STR-IFULLPART sy-vline 
WA_RDISB_API_GEN_STR-ADISBGROSS sy-vline 
WA_RDISB_API_GEN_STR-PDISBQUOTE sy-vline 
WA_RDISB_API_GEN_STR-INETGROSS sy-vline 
WA_RDISB_API_GEN_STR-ADISCWITHH sy-vline 
WA_RDISB_API_GEN_STR-AARRWITHH sy-vline 
WA_RDISB_API_GEN_STR-AOTHERSWITHH sy-vline 
WA_RDISB_API_GEN_STR-ADRAWINGS sy-vline 
WA_RDISB_API_GEN_STR-AARRNOTWITHH sy-vline 
WA_RDISB_API_GEN_STR-DWITHHUPTO sy-vline 
WA_RDISB_API_GEN_STR-DEXCHANGER sy-vline 
WA_RDISB_API_GEN_STR-MTEMPLNO sy-vline 
WA_RDISB_API_GEN_STR-DFIXEDFROM sy-vline 
WA_RDISB_API_GEN_STR-AVALIDATCAP sy-vline 
WA_RDISB_API_GEN_STR-ADISBOFF sy-vline 
WA_RDISB_API_GEN_STR-AAVDISOB sy-vline 
WA_RDISB_API_GEN_STR-AREMDISOB sy-vline 
WA_RDISB_API_GEN_STR-PDISBRATE sy-vline 
WA_RDISB_API_GEN_STR-DFAELL sy-vline 
WA_RDISB_API_GEN_STR-DDISPO sy-vline 
WA_RDISB_API_GEN_STR-ADISBNET sy-vline 
WA_RDISB_API_GEN_STR-ADISBNET_LC sy-vline 
WA_RDISB_API_GEN_STR-MPARTNR sy-vline 
WA_RDISB_API_GEN_STR-MBANKDET sy-vline 
WA_RDISB_API_GEN_STR-MPAYMMETH sy-vline 
WA_RDISB_API_GEN_STR-REXCHANGER sy-vline 
WA_RDISB_API_GEN_STR-IINCL sy-vline 
WA_RDISB_API_GEN_STR-IULT sy-vline 
WA_RDISB_API_GEN_STR-MCALID sy-vline 
WA_RDISB_API_GEN_STR-FTDISB sy-vline 
WA_RDISB_API_GEN_STR-MNDID sy-vline 
WA_RDISB_API_GEN_STR-REMIT_INFO sy-vline 
WA_RDISB_API_GEN_STR-MPOSTCONTROL sy-vline 
WA_RDISB_API_GEN_STR-MMANPOPROC sy-vline 
WA_RDISB_API_GEN_STR-IPAYMTRANS sy-vline 
WA_RDISB_API_GEN_STR-IPOSTSIM sy-vline 
WA_RDISB_API_GEN_STR-DPOSTDATE sy-vline 
WA_RDISB_API_GEN_STR-TPOST_TXT sy-vline 
WA_RDISB_API_GEN_STR-IPOSTPROT sy-vline 
WA_RDISB_API_GEN_STR-MPOSTPER sy-vline 
WA_RDISB_API_GEN_STR-MPOSTAPPL sy-vline 
WA_RDISB_API_GEN_STR-MLOCKUSER sy-vline 
WA_RDISB_API_GEN_STR-MTEMPLNO_TXT sy-vline 
WA_RDISB_API_GEN_STR-TXTXBO_TEXT sy-vline 
WA_RDISB_API_GEN_STR-MCONF_STAT_LOAN sy-vline 
WA_RDISB_API_GEN_STR-MCONF_STAT_BO sy-vline 
WA_RDISB_API_GEN_STR-STATIC_TEXTS sy-vline 
WA_RDISB_API_GEN_STR-TEXT sy-vline 
WA_RDISB_API_GEN_STR-TDISB_TXT sy-vline 
WA_RDISB_API_GEN_STR-TFT_DISB_TXT sy-vline 
WA_RDISB_API_GEN_STR-TPARTNR_TXT sy-vline 
WA_RDISB_API_GEN_STR-TBANKDET_TXT sy-vline 
WA_RDISB_API_GEN_STR-TCAL_TXT sy-vline 
WA_RDISB_API_GEN_STR-TSG_TXT sy-vline 
WA_RDISB_API_GEN_STR-FLG_NO_ENQUEUE sy-vline 
WA_RDISB_API_GEN_STR-FLG_NO_CONFIRMATION sy-vline 
WA_RDISB_API_GEN_STR-FLG_NO_VDCFWAREHOUSE sy-vline 
WA_RDISB_API_GEN_STR-FLG_CHG_DRAWING sy-vline 
WA_RDISB_API_GEN_STR-FLG_ASYNCHRON_SAVE sy-vline 
WA_RDISB_API_GEN_STR-FLG_NO_LOAN_INIT sy-vline 
WA_RDISB_API_GEN_STR-FLG_NO_BO_INIT sy-vline 
WA_RDISB_API_GEN_STR-FLG_NO_CORRESP sy-vline 
WA_RDISB_API_GEN_STR-VDAUSZ sy-vline 
WA_RDISB_API_GEN_STR-WITHHOLDPLANITEM sy-vline 
WA_RDISB_API_GEN_STR-WITHHOLDOPENITEM sy-vline 
WA_RDISB_API_GEN_STR-HBKID sy-vline 
WA_RDISB_API_GEN_STR-HKTID sy-vline 
WA_RDISB_API_GEN_STR-NO_DEFAULT_WITHHOLDING sy-vline      INTO ld_text SEPARATED BY SPACE.

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