ABAP Select data from SAP table REVALE into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REVALE 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 REVALE. 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 REVALE 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_REVALE TYPE STANDARD TABLE OF REVALE,
      WA_REVALE TYPE REVALE,
      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: <REVALE> TYPE REVALE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REVALE
*  INTO TABLE @DATA(IT_REVALE2).
*--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_REVALE INDEX 1 INTO DATA(WA_REVALE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REVALE>-RANTYP = 1.
<REVALE>-BUKRS = 1.
<REVALE>-RANL = 1.
<REVALE>-RLDEPO = 1.
<REVALE>-HKONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REVALE-XKONT, sy-vline,
  WA_REVALE-RREFKONT, sy-vline,
  WA_REVALE-XREFKONT, sy-vline,
  WA_REVALE-SANLF, sy-vline,
  WA_REVALE-SBWHR, sy-vline,
  WA_REVALE-SHWHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REVALE 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_REVALE 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_REVALE INTO WA_REVALE.


*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_REVALE-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REVALE-RANL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field REPKE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REVALE-REPKE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REVALE-REPKE.
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_REVALE_STR, 
RANTYP TYPE STRING,
BUKRS TYPE STRING,
RANL TYPE STRING,
RLDEPO TYPE STRING,
HKONT TYPE STRING,
XKONT TYPE STRING,
RREFKONT TYPE STRING,
XREFKONT TYPE STRING,
SANLF TYPE STRING,
SBWHR TYPE STRING,
SHWHR TYPE STRING,
BBUCHWR TYPE STRING,
BBUCHHW TYPE STRING,
GSART TYPE STRING,
REPKE TYPE STRING,
STILGART TYPE STRING,
DELFZ TYPE STRING,
ARLZ TYPE STRING,
BBUCHWR_L TYPE STRING,
BBUCHHW_L TYPE STRING,
BBUCHWR_M TYPE STRING,
BBUCHHW_M TYPE STRING,
BBUCHWR_H TYPE STRING,
BBUCHHW_H TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REVALE_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_REVALE_STR-RANTYP sy-vline 
WA_REVALE_STR-BUKRS sy-vline 
WA_REVALE_STR-RANL sy-vline 
WA_REVALE_STR-RLDEPO sy-vline 
WA_REVALE_STR-HKONT sy-vline 
WA_REVALE_STR-XKONT sy-vline 
WA_REVALE_STR-RREFKONT sy-vline 
WA_REVALE_STR-XREFKONT sy-vline 
WA_REVALE_STR-SANLF sy-vline 
WA_REVALE_STR-SBWHR sy-vline 
WA_REVALE_STR-SHWHR sy-vline 
WA_REVALE_STR-BBUCHWR sy-vline 
WA_REVALE_STR-BBUCHHW sy-vline 
WA_REVALE_STR-GSART sy-vline 
WA_REVALE_STR-REPKE sy-vline 
WA_REVALE_STR-STILGART sy-vline 
WA_REVALE_STR-DELFZ sy-vline 
WA_REVALE_STR-ARLZ sy-vline 
WA_REVALE_STR-BBUCHWR_L sy-vline 
WA_REVALE_STR-BBUCHHW_L sy-vline 
WA_REVALE_STR-BBUCHWR_M sy-vline 
WA_REVALE_STR-BBUCHHW_M sy-vline 
WA_REVALE_STR-BBUCHWR_H sy-vline 
WA_REVALE_STR-BBUCHHW_H sy-vline      INTO ld_text SEPARATED BY SPACE.

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