ABAP Select data from SAP table RC61X into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RC61X 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 RC61X. 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 RC61X 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_RC61X TYPE STANDARD TABLE OF RC61X,
      WA_RC61X TYPE RC61X,
      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: <RC61X> TYPE RC61X.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RC61X.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RC61X
  INTO TABLE IT_RC61X.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RC61X
*  INTO TABLE @DATA(IT_RC61X2).
*--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_RC61X INDEX 1 INTO DATA(WA_RC61X2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RC61X ASSIGNING <RC61X>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RC61X>-MNGC1 = 1.
<RC61X>-MNGC2 = 1.
<RC61X>-MNGC3 = 1.
<RC61X>-MNGC4 = 1.
<RC61X>-DLIS1 = 1.

ENDLOOP.

LOOP AT IT_RC61X INTO WA_RC61X.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RC61X-DLIS2, sy-vline,
  WA_RC61X-DDAT1, sy-vline,
  WA_RC61X-DDAT2, sy-vline,
  WA_RC61X-WRT05, sy-vline,
  WA_RC61X-SPA05, sy-vline,
  WA_RC61X-UEB05, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RC61X 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_RC61X 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_RC61X INTO WA_RC61X.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RC61X_STR, 
MNGC1 TYPE STRING,
MNGC2 TYPE STRING,
MNGC3 TYPE STRING,
MNGC4 TYPE STRING,
DLIS1 TYPE STRING,
DLIS2 TYPE STRING,
DDAT1 TYPE STRING,
DDAT2 TYPE STRING,
WRT05 TYPE STRING,
SPA05 TYPE STRING,
UEB05 TYPE STRING,
PLSC2 TYPE STRING,
PLST2 TYPE STRING,
LIST1 TYPE STRING,
LIST2 TYPE STRING,
DDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RC61X_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_RC61X_STR-MNGC1 sy-vline 
WA_RC61X_STR-MNGC2 sy-vline 
WA_RC61X_STR-MNGC3 sy-vline 
WA_RC61X_STR-MNGC4 sy-vline 
WA_RC61X_STR-DLIS1 sy-vline 
WA_RC61X_STR-DLIS2 sy-vline 
WA_RC61X_STR-DDAT1 sy-vline 
WA_RC61X_STR-DDAT2 sy-vline 
WA_RC61X_STR-WRT05 sy-vline 
WA_RC61X_STR-SPA05 sy-vline 
WA_RC61X_STR-UEB05 sy-vline 
WA_RC61X_STR-PLSC2 sy-vline 
WA_RC61X_STR-PLST2 sy-vline 
WA_RC61X_STR-LIST1 sy-vline 
WA_RC61X_STR-LIST2 sy-vline 
WA_RC61X_STR-DDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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