ABAP Select data from SAP table ROIUBL01_DOH_DISPLAY into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIUBL01_DOH_DISPLAY 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 ROIUBL01_DOH_DISPLAY. 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 ROIUBL01_DOH_DISPLAY 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_ROIUBL01_DOH_DISPLAY TYPE STANDARD TABLE OF ROIUBL01_DOH_DISPLAY,
      WA_ROIUBL01_DOH_DISPLAY TYPE ROIUBL01_DOH_DISPLAY,
      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: <ROIUBL01_DOH_DISPLAY> TYPE ROIUBL01_DOH_DISPLAY.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ROIUBL01_DOH_DISPLAY.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ROIUBL01_DOH_DISPLAY
  INTO TABLE IT_ROIUBL01_DOH_DISPLAY.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIUBL01_DOH_DISPLAY
*  INTO TABLE @DATA(IT_ROIUBL01_DOH_DISPLAY2).
*--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_ROIUBL01_DOH_DISPLAY INDEX 1 INTO DATA(WA_ROIUBL01_DOH_DISPLAY2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ROIUBL01_DOH_DISPLAY ASSIGNING <ROIUBL01_DOH_DISPLAY>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIUBL01_DOH_DISPLAY>-MANDT = 1.
<ROIUBL01_DOH_DISPLAY>-DOH_NO = 1.
<ROIUBL01_DOH_DISPLAY>-BUKRS = 1.
<ROIUBL01_DOH_DISPLAY>-VNAME = 1.
<ROIUBL01_DOH_DISPLAY>-DOI_NO = 1.

ENDLOOP.

LOOP AT IT_ROIUBL01_DOH_DISPLAY INTO WA_ROIUBL01_DOH_DISPLAY.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_NO, sy-vline,
  WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_INT_TYPE, sy-vline,
  WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_ISQ_NO, sy-vline,
  WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_NO, sy-vline,
  WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_INT_TYPE, sy-vline,
  WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_ISQ_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIUBL01_DOH_DISPLAY 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_ROIUBL01_DOH_DISPLAY 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_ROIUBL01_DOH_DISPLAY INTO WA_ROIUBL01_DOH_DISPLAY.


*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 VNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-VNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-VNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOI_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-DOI_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-DOI_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OLD_OWN_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OLD_OWN_ISQ_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_ISQ_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-OLD_OWN_ISQ_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NEW_OWN_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NEW_OWN_ISQ_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_ISQ_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-NEW_OWN_ISQ_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPYMT_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-PPYMT_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-PPYMT_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CARR_BG_CD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-CARR_BG_CD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-CARR_BG_CD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOC_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-DOC_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-DOC_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field DOC_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ROIUBL01_DOH_DISPLAY-DOC_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIUBL01_DOH_DISPLAY-DOC_YEAR.
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_ROIUBL01_DOH_DISPLAY_STR, 
MANDT TYPE STRING,
DOH_NO TYPE STRING,
BUKRS TYPE STRING,
VNAME TYPE STRING,
DOI_NO TYPE STRING,
OLD_OWN_NO TYPE STRING,
OLD_OWN_INT_TYPE TYPE STRING,
OLD_OWN_ISQ_NO TYPE STRING,
NEW_OWN_NO TYPE STRING,
NEW_OWN_INT_TYPE TYPE STRING,
NEW_OWN_ISQ_NO TYPE STRING,
EFF_FROM_DT TYPE STRING,
OLD_NRI_PC TYPE STRING,
OLD_COST_VEND_CD TYPE STRING,
NEW_NRI_PC TYPE STRING,
NEW_COST_VEND_CD TYPE STRING,
EFF_TO_DT TYPE STRING,
ALLOC_DEC TYPE STRING,
TFER_RSN_CD TYPE STRING,
TFER_TYPE_CD TYPE STRING,
TFER_LVL_CD TYPE STRING,
PPA_ADJ_FL TYPE STRING,
TFALL_SUS_FL TYPE STRING,
NEW_SUS_RSN_CD TYPE STRING,
NEW_PAY_CD TYPE STRING,
NRI_ALLOC_FL TYPE STRING,
INCR_NRI_DI_PC TYPE STRING,
OLD_PAY_CD TYPE STRING,
PPYMT_NO TYPE STRING,
FILE_NO TYPE STRING,
CARR_BG_CD TYPE STRING,
DOC_NO TYPE STRING,
DOC_YEAR TYPE STRING,
OIU_CRUSER TYPE STRING,
OIU_TIMESTAMP TYPE STRING,
OLD_SUS_RSN_CD TYPE STRING,
OLD_NET_MINERAL_ACRES TYPE STRING,
NEW_NET_MINERAL_ACRES TYPE STRING,
INCR_NET_MINERAL_ACRES TYPE STRING,
BL_MANDT TYPE STRING,
BL_DOH_NO TYPE STRING,
OLD_RET_CUR TYPE STRING,
BL_OIU_CRUSER TYPE STRING,
BL_OIU_TIMESTAMP TYPE STRING,
GRI_PC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIUBL01_DOH_DISPLAY_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_ROIUBL01_DOH_DISPLAY_STR-MANDT sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-DOH_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-BUKRS sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-VNAME sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-DOI_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_OWN_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_OWN_INT_TYPE sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_OWN_ISQ_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_OWN_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_OWN_INT_TYPE sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_OWN_ISQ_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-EFF_FROM_DT sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_NRI_PC sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_COST_VEND_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_NRI_PC sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_COST_VEND_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-EFF_TO_DT sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-ALLOC_DEC sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-TFER_RSN_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-TFER_TYPE_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-TFER_LVL_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-PPA_ADJ_FL sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-TFALL_SUS_FL sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_SUS_RSN_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_PAY_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NRI_ALLOC_FL sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-INCR_NRI_DI_PC sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_PAY_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-PPYMT_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-FILE_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-CARR_BG_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-DOC_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-DOC_YEAR sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OIU_CRUSER sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OIU_TIMESTAMP sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_SUS_RSN_CD sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_NET_MINERAL_ACRES sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-NEW_NET_MINERAL_ACRES sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-INCR_NET_MINERAL_ACRES sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-BL_MANDT sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-BL_DOH_NO sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-OLD_RET_CUR sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-BL_OIU_CRUSER sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-BL_OIU_TIMESTAMP sy-vline 
WA_ROIUBL01_DOH_DISPLAY_STR-GRI_PC sy-vline      INTO ld_text SEPARATED BY SPACE.

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