ABAP Select data from SAP table REABLD_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REABLD_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 REABLD_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 REABLD_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_REABLD_ALV TYPE STANDARD TABLE OF REABLD_ALV,
      WA_REABLD_ALV TYPE REABLD_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: <REABLD_ALV> TYPE REABLD_ALV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REABLD_ALV
*  INTO TABLE @DATA(IT_REABLD_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_REABLD_ALV INDEX 1 INTO DATA(WA_REABLD_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REABLD_ALV>-LINE_MARK = 1.
<REABLD_ALV>-SPARTE_TEXT = 1.
<REABLD_ALV>-VERTRAG = 1.
<REABLD_ALV>-ANLAGE = 1.
<REABLD_ALV>-MULTIPLE_ICON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REABLD_ALV-GERNR, sy-vline,
  WA_REABLD_ALV-ZWNUMMER, sy-vline,
  WA_REABLD_ALV-SPARTYP, sy-vline,
  WA_REABLD_ALV-ZWART, sy-vline,
  WA_REABLD_ALV-ZWTYP, sy-vline,
  WA_REABLD_ALV-ABLESGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REABLD_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_REABLD_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_REABLD_ALV INTO WA_REABLD_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 VERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REABLD_ALV-VERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REABLD_ALV-VERTRAG.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit HH_MM, internal->external for field ATIMENTRY
CALL FUNCTION 'CONVERSION_EXIT_HH_MM_OUTPUT'
  EXPORTING
    input =                      WA_REABLD_ALV-ATIMENTRY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REABLD_ALV-ATIMENTRY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HH_MM, internal->external for field ATIMTATS
CALL FUNCTION 'CONVERSION_EXIT_HH_MM_OUTPUT'
  EXPORTING
    input =                      WA_REABLD_ALV-ATIMTATS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REABLD_ALV-ATIMTATS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HH_MM, internal->external for field ATIMMAX
CALL FUNCTION 'CONVERSION_EXIT_HH_MM_OUTPUT'
  EXPORTING
    input =                      WA_REABLD_ALV-ATIMMAX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REABLD_ALV-ATIMMAX.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REABLD_ALV-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REABLD_ALV-EQUNR.
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_REABLD_ALV_STR, 
LINE_MARK TYPE STRING,
SPARTE_TEXT TYPE STRING,
VERTRAG TYPE STRING,
ANLAGE TYPE STRING,
MULTIPLE_ICON TYPE STRING,
GERNR TYPE STRING,
ZWNUMMER TYPE STRING,
SPARTYP TYPE STRING,
ZWART TYPE STRING,
ZWTYP TYPE STRING,
ABLESGR TYPE STRING,
ZWSTAND TYPE STRING,
ADATENTRY TYPE STRING,
ATIMENTRY TYPE STRING,
ABLHINW TYPE STRING,
ABLSTAT TYPE STRING,
INFO_ICON TYPE STRING,
ISTABLART TYPE STRING,
ABLESER TYPE STRING,
AKTIV TYPE STRING,
ADATTATS TYPE STRING,
ATIMTATS TYPE STRING,
ADATMAX TYPE STRING,
ATIMMAX TYPE STRING,
CONSMPT_MRE TYPE STRING,
DEMAND TYPE STRING,
ZWKENN TYPE STRING,
KENNZIFF TYPE STRING,
BLIWIRK TYPE STRING,
BACKBILL_STAT TYPE STRING,
ABLBELNR TYPE STRING,
EQUNR TYPE STRING,
LINECOLOR TYPE STRING,
CELLTAB TYPE STRING,
NEW_EABL TYPE STRING,
ABLESTYP TYPE STRING,
QNT_STATUS TYPE STRING,
QDSTAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REABLD_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_REABLD_ALV_STR-LINE_MARK sy-vline 
WA_REABLD_ALV_STR-SPARTE_TEXT sy-vline 
WA_REABLD_ALV_STR-VERTRAG sy-vline 
WA_REABLD_ALV_STR-ANLAGE sy-vline 
WA_REABLD_ALV_STR-MULTIPLE_ICON sy-vline 
WA_REABLD_ALV_STR-GERNR sy-vline 
WA_REABLD_ALV_STR-ZWNUMMER sy-vline 
WA_REABLD_ALV_STR-SPARTYP sy-vline 
WA_REABLD_ALV_STR-ZWART sy-vline 
WA_REABLD_ALV_STR-ZWTYP sy-vline 
WA_REABLD_ALV_STR-ABLESGR sy-vline 
WA_REABLD_ALV_STR-ZWSTAND sy-vline 
WA_REABLD_ALV_STR-ADATENTRY sy-vline 
WA_REABLD_ALV_STR-ATIMENTRY sy-vline 
WA_REABLD_ALV_STR-ABLHINW sy-vline 
WA_REABLD_ALV_STR-ABLSTAT sy-vline 
WA_REABLD_ALV_STR-INFO_ICON sy-vline 
WA_REABLD_ALV_STR-ISTABLART sy-vline 
WA_REABLD_ALV_STR-ABLESER sy-vline 
WA_REABLD_ALV_STR-AKTIV sy-vline 
WA_REABLD_ALV_STR-ADATTATS sy-vline 
WA_REABLD_ALV_STR-ATIMTATS sy-vline 
WA_REABLD_ALV_STR-ADATMAX sy-vline 
WA_REABLD_ALV_STR-ATIMMAX sy-vline 
WA_REABLD_ALV_STR-CONSMPT_MRE sy-vline 
WA_REABLD_ALV_STR-DEMAND sy-vline 
WA_REABLD_ALV_STR-ZWKENN sy-vline 
WA_REABLD_ALV_STR-KENNZIFF sy-vline 
WA_REABLD_ALV_STR-BLIWIRK sy-vline 
WA_REABLD_ALV_STR-BACKBILL_STAT sy-vline 
WA_REABLD_ALV_STR-ABLBELNR sy-vline 
WA_REABLD_ALV_STR-EQUNR sy-vline 
WA_REABLD_ALV_STR-LINECOLOR sy-vline 
WA_REABLD_ALV_STR-CELLTAB sy-vline 
WA_REABLD_ALV_STR-NEW_EABL sy-vline 
WA_REABLD_ALV_STR-ABLESTYP sy-vline 
WA_REABLD_ALV_STR-QNT_STATUS sy-vline 
WA_REABLD_ALV_STR-QDSTAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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