ABAP Select data from SAP table REHORUECKL1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REHORUECKL1 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 REHORUECKL1. 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 REHORUECKL1 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_REHORUECKL1 TYPE STANDARD TABLE OF REHORUECKL1,
      WA_REHORUECKL1 TYPE REHORUECKL1,
      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: <REHORUECKL1> TYPE REHORUECKL1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_REHORUECKL1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM REHORUECKL1
  INTO TABLE IT_REHORUECKL1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REHORUECKL1
*  INTO TABLE @DATA(IT_REHORUECKL12).
*--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_REHORUECKL1 INDEX 1 INTO DATA(WA_REHORUECKL12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_REHORUECKL1 ASSIGNING <REHORUECKL1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REHORUECKL1>-BUKRS = 1.
<REHORUECKL1>-RECNNRW = 1.
<REHORUECKL1>-RACCT = 1.
<REHORUECKL1>-TXT20_SKAT = 1.
<REHORUECKL1>-VERS = 1.

ENDLOOP.

LOOP AT IT_REHORUECKL1 INTO WA_REHORUECKL1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REHORUECKL1-SWENR, sy-vline,
  WA_REHORUECKL1-SMENR, sy-vline,
  WA_REHORUECKL1-RECNNR, sy-vline,
  WA_REHORUECKL1-POS, sy-vline,
  WA_REHORUECKL1-XMBEZ, sy-vline,
  WA_REHORUECKL1-DMBTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REHORUECKL1 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_REHORUECKL1 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_REHORUECKL1 INTO WA_REHORUECKL1.


*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 RECNNRW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REHORUECKL1-RECNNRW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHORUECKL1-RECNNRW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REHORUECKL1-RACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHORUECKL1-RACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_REHORUECKL1-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHORUECKL1-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_REHORUECKL1-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHORUECKL1-SMENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REHORUECKL1-RECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REHORUECKL1-RECNNR.
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_REHORUECKL1_STR, 
BUKRS TYPE STRING,
RECNNRW TYPE STRING,
RACCT TYPE STRING,
TXT20_SKAT TYPE STRING,
VERS TYPE STRING,
SWENR TYPE STRING,
SMENR TYPE STRING,
RECNNR TYPE STRING,
POS TYPE STRING,
XMBEZ TYPE STRING,
DMBTR TYPE STRING,
WAERS TYPE STRING,
RECNBEG TYPE STRING,
RECNEND TYPE STRING,
DTDAB TYPE STRING,
DTDBIS TYPE STRING,
BUMLGR TYPE STRING,
SABRG TYPE STRING,
XEINHEIT TYPE STRING,
RUECK_BANK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REHORUECKL1_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_REHORUECKL1_STR-BUKRS sy-vline 
WA_REHORUECKL1_STR-RECNNRW sy-vline 
WA_REHORUECKL1_STR-RACCT sy-vline 
WA_REHORUECKL1_STR-TXT20_SKAT sy-vline 
WA_REHORUECKL1_STR-VERS sy-vline 
WA_REHORUECKL1_STR-SWENR sy-vline 
WA_REHORUECKL1_STR-SMENR sy-vline 
WA_REHORUECKL1_STR-RECNNR sy-vline 
WA_REHORUECKL1_STR-POS sy-vline 
WA_REHORUECKL1_STR-XMBEZ sy-vline 
WA_REHORUECKL1_STR-DMBTR sy-vline 
WA_REHORUECKL1_STR-WAERS sy-vline 
WA_REHORUECKL1_STR-RECNBEG sy-vline 
WA_REHORUECKL1_STR-RECNEND sy-vline 
WA_REHORUECKL1_STR-DTDAB sy-vline 
WA_REHORUECKL1_STR-DTDBIS sy-vline 
WA_REHORUECKL1_STR-BUMLGR sy-vline 
WA_REHORUECKL1_STR-SABRG sy-vline 
WA_REHORUECKL1_STR-XEINHEIT sy-vline 
WA_REHORUECKL1_STR-RUECK_BANK sy-vline      INTO ld_text SEPARATED BY SPACE.

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