ABAP Select data from SAP table RCBDUDGREL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCBDUDGREL
*  INTO TABLE @DATA(IT_RCBDUDGREL2).
*--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_RCBDUDGREL INDEX 1 INTO DATA(WA_RCBDUDGREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCBDUDGREL>-PRIO_ALTERN = 1.
<RCBDUDGREL>-FLG_RELEASED = 1.
<RCBDUDGREL>-FLG_TRANS_PERM = 1.
<RCBDUDGREL>-FLG_NO_DG = 1.
<RCBDUDGREL>-FLG_LQ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCBDUDGREL-FLG_RQ, sy-vline,
  WA_RCBDUDGREL-INSTR_ENCL, sy-vline,
  WA_RCBDUDGREL-FLG_SINGLE_PACK, sy-vline,
  WA_RCBDUDGREL-PACOD, sy-vline,
  WA_RCBDUDGREL-QUANT_OUT_PACK, sy-vline,
  WA_RCBDUDGREL-U_QUANT_OUT_PACK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCBDUDGREL 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_RCBDUDGREL 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_RCBDUDGREL INTO WA_RCBDUDGREL.


*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 CUNIT, internal->external for field U_QUANT_OUT_PACK
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RCBDUDGREL-U_QUANT_OUT_PACK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCBDUDGREL-U_QUANT_OUT_PACK.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field U_MAX_GROSS_WGHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RCBDUDGREL-U_MAX_GROSS_WGHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCBDUDGREL-U_MAX_GROSS_WGHT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EXPL_NET_DYN_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RCBDUDGREL-EXPL_NET_DYN_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCBDUDGREL-EXPL_NET_DYN_U.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MAX_ACT_SGL_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RCBDUDGREL-MAX_ACT_SGL_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCBDUDGREL-MAX_ACT_SGL_U.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MAX_ACT_PACK_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RCBDUDGREL-MAX_ACT_PACK_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCBDUDGREL-MAX_ACT_PACK_U.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MAX_NEM_U
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RCBDUDGREL-MAX_NEM_U
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCBDUDGREL-MAX_NEM_U.
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_RCBDUDGREL_STR, 
PRIO_ALTERN TYPE STRING,
FLG_RELEASED TYPE STRING,
FLG_TRANS_PERM TYPE STRING,
FLG_NO_DG TYPE STRING,
FLG_LQ TYPE STRING,
FLG_RQ TYPE STRING,
INSTR_ENCL TYPE STRING,
FLG_SINGLE_PACK TYPE STRING,
PACOD TYPE STRING,
QUANT_OUT_PACK TYPE STRING,
U_QUANT_OUT_PACK TYPE STRING,
PACK_NOTE TYPE STRING,
RECN_SUB TYPE STRING,
RECN_CLASS TYPE STRING,
FLG_CC TYPE STRING,
FLG_PACKED TYPE STRING,
TRANSPORT_TYPE TYPE STRING,
APPROVAL_CODE TYPE STRING,
MAT_DAMAGED_CL7 TYPE STRING,
MAX_GROSS_WEIGHT TYPE STRING,
U_MAX_GROSS_WGHT TYPE STRING,
SUBID_DG_CLASS TYPE STRING,
EMV_DYN TYPE STRING,
LTSK_DYN TYPE STRING,
EXPL_NET_DYN TYPE STRING,
EXPL_NET_DYN_U TYPE STRING,
MAX_ACT_SGL TYPE STRING,
MAX_ACT_SGL_U TYPE STRING,
ACT_SGL_UNLIMIT TYPE STRING,
MAX_ACT_PACK TYPE STRING,
MAX_ACT_PACK_U TYPE STRING,
ACT_PACK_UNLIMIT TYPE STRING,
EXCEPT_PACK_OPT TYPE STRING,
DG_USE_CASE TYPE STRING,
PRIO_DYNCL TYPE STRING,
MAX_NEM TYPE STRING,
MAX_NEM_U TYPE STRING,
DUMMY_RCBDUDGREL TYPE STRING,
FLG_EQ TYPE STRING,
DGREL_TRANSIND01 TYPE STRING,
DGREL_TRANSIND02 TYPE STRING,
DGREL_TRANSIND03 TYPE STRING,
DGREL_TRANSIND04 TYPE STRING,
DGREL_TRANSIND05 TYPE STRING,
DGREL_TRANSIND06 TYPE STRING,
DGREL_TRANSIND07 TYPE STRING,
DGREL_TRANSIND08 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCBDUDGREL_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_RCBDUDGREL_STR-PRIO_ALTERN sy-vline 
WA_RCBDUDGREL_STR-FLG_RELEASED sy-vline 
WA_RCBDUDGREL_STR-FLG_TRANS_PERM sy-vline 
WA_RCBDUDGREL_STR-FLG_NO_DG sy-vline 
WA_RCBDUDGREL_STR-FLG_LQ sy-vline 
WA_RCBDUDGREL_STR-FLG_RQ sy-vline 
WA_RCBDUDGREL_STR-INSTR_ENCL sy-vline 
WA_RCBDUDGREL_STR-FLG_SINGLE_PACK sy-vline 
WA_RCBDUDGREL_STR-PACOD sy-vline 
WA_RCBDUDGREL_STR-QUANT_OUT_PACK sy-vline 
WA_RCBDUDGREL_STR-U_QUANT_OUT_PACK sy-vline 
WA_RCBDUDGREL_STR-PACK_NOTE sy-vline 
WA_RCBDUDGREL_STR-RECN_SUB sy-vline 
WA_RCBDUDGREL_STR-RECN_CLASS sy-vline 
WA_RCBDUDGREL_STR-FLG_CC sy-vline 
WA_RCBDUDGREL_STR-FLG_PACKED sy-vline 
WA_RCBDUDGREL_STR-TRANSPORT_TYPE sy-vline 
WA_RCBDUDGREL_STR-APPROVAL_CODE sy-vline 
WA_RCBDUDGREL_STR-MAT_DAMAGED_CL7 sy-vline 
WA_RCBDUDGREL_STR-MAX_GROSS_WEIGHT sy-vline 
WA_RCBDUDGREL_STR-U_MAX_GROSS_WGHT sy-vline 
WA_RCBDUDGREL_STR-SUBID_DG_CLASS sy-vline 
WA_RCBDUDGREL_STR-EMV_DYN sy-vline 
WA_RCBDUDGREL_STR-LTSK_DYN sy-vline 
WA_RCBDUDGREL_STR-EXPL_NET_DYN sy-vline 
WA_RCBDUDGREL_STR-EXPL_NET_DYN_U sy-vline 
WA_RCBDUDGREL_STR-MAX_ACT_SGL sy-vline 
WA_RCBDUDGREL_STR-MAX_ACT_SGL_U sy-vline 
WA_RCBDUDGREL_STR-ACT_SGL_UNLIMIT sy-vline 
WA_RCBDUDGREL_STR-MAX_ACT_PACK sy-vline 
WA_RCBDUDGREL_STR-MAX_ACT_PACK_U sy-vline 
WA_RCBDUDGREL_STR-ACT_PACK_UNLIMIT sy-vline 
WA_RCBDUDGREL_STR-EXCEPT_PACK_OPT sy-vline 
WA_RCBDUDGREL_STR-DG_USE_CASE sy-vline 
WA_RCBDUDGREL_STR-PRIO_DYNCL sy-vline 
WA_RCBDUDGREL_STR-MAX_NEM sy-vline 
WA_RCBDUDGREL_STR-MAX_NEM_U sy-vline 
WA_RCBDUDGREL_STR-DUMMY_RCBDUDGREL sy-vline 
WA_RCBDUDGREL_STR-FLG_EQ sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND01 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND02 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND03 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND04 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND05 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND06 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND07 sy-vline 
WA_RCBDUDGREL_STR-DGREL_TRANSIND08 sy-vline      INTO ld_text SEPARATED BY SPACE.

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