ABAP Select data from SAP table OIJ_RU_TREXP_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ_RU_TREXP_ALV
*  INTO TABLE @DATA(IT_OIJ_RU_TREXP_ALV2).
*--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_OIJ_RU_TREXP_ALV INDEX 1 INTO DATA(WA_OIJ_RU_TREXP_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ_RU_TREXP_ALV>-SELKZ = 1.
<OIJ_RU_TREXP_ALV>-ICON = 1.
<OIJ_RU_TREXP_ALV>-BELNR = 1.
<OIJ_RU_TREXP_ALV>-GJAHR = 1.
<OIJ_RU_TREXP_ALV>-BUZEI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ_RU_TREXP_ALV-BLART, sy-vline,
  WA_OIJ_RU_TREXP_ALV-BLDAT, sy-vline,
  WA_OIJ_RU_TREXP_ALV-BUDAT, sy-vline,
  WA_OIJ_RU_TREXP_ALV-USNAM, sy-vline,
  WA_OIJ_RU_TREXP_ALV-XBLNR, sy-vline,
  WA_OIJ_RU_TREXP_ALV-BUKRS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ_RU_TREXP_ALV 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_OIJ_RU_TREXP_ALV 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_OIJ_RU_TREXP_ALV INTO WA_OIJ_RU_TREXP_ALV.


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

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_RU_TREXP_ALV-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_RU_TREXP_ALV-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field CO_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_RU_TREXP_ALV-CO_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_RU_TREXP_ALV-CO_GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field FI_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_RU_TREXP_ALV-FI_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_RU_TREXP_ALV-FI_GJAHR.
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_OIJ_RU_TREXP_ALV_STR, 
SELKZ TYPE STRING,
ICON TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
USNAM TYPE STRING,
XBLNR TYPE STRING,
BUKRS TYPE STRING,
LIFNR TYPE STRING,
LIFNR_NAME TYPE STRING,
WAERS TYPE STRING,
NETWR TYPE STRING,
RMWWR TYPE STRING,
FWSTE TYPE STRING,
MWSKZ TYPE STRING,
SGTXT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
SERVICE TYPE STRING,
EXTTKTNR TYPE STRING,
NOMTK TYPE STRING,
NOMIT TYPE STRING,
TICKET_KEY TYPE STRING,
TICKET_VERSION TYPE STRING,
SO_VBELN TYPE STRING,
SO_POSNR TYPE STRING,
SO_KUNNR TYPE STRING,
SO_KUNNR_NAME TYPE STRING,
SO_NOMTK TYPE STRING,
SO_NOMIT TYPE STRING,
EXP_KBETR TYPE STRING,
EXP_KOEIN TYPE STRING,
EXP_KOEI1 TYPE STRING,
EXP_WRBTR TYPE STRING,
LOG_MSGTY TYPE STRING,
LOG_MSGNR TYPE STRING,
LOG_MSGTEXT TYPE STRING,
LOG_MSGV TYPE STRING,
LOG_LONGT_ICON TYPE STRING,
CO_BELNR TYPE STRING,
CO_GJAHR TYPE STRING,
FI_BELNR TYPE STRING,
FI_GJAHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ_RU_TREXP_ALV_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_OIJ_RU_TREXP_ALV_STR-SELKZ sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-ICON sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-BELNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-GJAHR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-BUZEI sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-BLART sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-BLDAT sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-BUDAT sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-USNAM sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-XBLNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-BUKRS sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LIFNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LIFNR_NAME sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-WAERS sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-NETWR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-RMWWR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-FWSTE sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-MWSKZ sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SGTXT sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EBELN sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EBELP sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SERVICE sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EXTTKTNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-NOMTK sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-NOMIT sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-TICKET_KEY sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-TICKET_VERSION sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SO_VBELN sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SO_POSNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SO_KUNNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SO_KUNNR_NAME sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SO_NOMTK sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-SO_NOMIT sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EXP_KBETR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EXP_KOEIN sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EXP_KOEI1 sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-EXP_WRBTR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LOG_MSGTY sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LOG_MSGNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LOG_MSGTEXT sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LOG_MSGV sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-LOG_LONGT_ICON sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-CO_BELNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-CO_GJAHR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-FI_BELNR sy-vline 
WA_OIJ_RU_TREXP_ALV_STR-FI_GJAHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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