ABAP Select data from SAP table RISU_DEREG_ETHI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RISU_DEREG_ETHI
*  INTO TABLE @DATA(IT_RISU_DEREG_ETHI2).
*--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_RISU_DEREG_ETHI INDEX 1 INTO DATA(WA_RISU_DEREG_ETHI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RISU_DEREG_ETHI>-SERVICEID = 1.
<RISU_DEREG_ETHI>-INVOICING_PARTY = 1.
<RISU_DEREG_ETHI>-V_GROUP = 1.
<RISU_DEREG_ETHI>-BUDAT = 1.
<RISU_DEREG_ETHI>-BLDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RISU_DEREG_ETHI-BLART, sy-vline,
  WA_RISU_DEREG_ETHI-FIKEY, sy-vline,
  WA_RISU_DEREG_ETHI-PYMET, sy-vline,
  WA_RISU_DEREG_ETHI-LAND1, sy-vline,
  WA_RISU_DEREG_ETHI-BUKRS, sy-vline,
  WA_RISU_DEREG_ETHI-NODIA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RISU_DEREG_ETHI 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_RISU_DEREG_ETHI 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_RISU_DEREG_ETHI INTO WA_RISU_DEREG_ETHI.


*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_RISU_DEREG_ETHI_STR, 
SERVICEID TYPE STRING,
INVOICING_PARTY TYPE STRING,
V_GROUP TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
BLART TYPE STRING,
FIKEY TYPE STRING,
PYMET TYPE STRING,
LAND1 TYPE STRING,
BUKRS TYPE STRING,
NODIA TYPE STRING,
TEXT01 TYPE STRING,
TEXT02 TYPE STRING,
TEXT03 TYPE STRING,
TEXT04 TYPE STRING,
TEXT05 TYPE STRING,
AGGR_ADD TYPE STRING,
AGGR_VAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RISU_DEREG_ETHI_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_RISU_DEREG_ETHI_STR-SERVICEID sy-vline 
WA_RISU_DEREG_ETHI_STR-INVOICING_PARTY sy-vline 
WA_RISU_DEREG_ETHI_STR-V_GROUP sy-vline 
WA_RISU_DEREG_ETHI_STR-BUDAT sy-vline 
WA_RISU_DEREG_ETHI_STR-BLDAT sy-vline 
WA_RISU_DEREG_ETHI_STR-BLART sy-vline 
WA_RISU_DEREG_ETHI_STR-FIKEY sy-vline 
WA_RISU_DEREG_ETHI_STR-PYMET sy-vline 
WA_RISU_DEREG_ETHI_STR-LAND1 sy-vline 
WA_RISU_DEREG_ETHI_STR-BUKRS sy-vline 
WA_RISU_DEREG_ETHI_STR-NODIA sy-vline 
WA_RISU_DEREG_ETHI_STR-TEXT01 sy-vline 
WA_RISU_DEREG_ETHI_STR-TEXT02 sy-vline 
WA_RISU_DEREG_ETHI_STR-TEXT03 sy-vline 
WA_RISU_DEREG_ETHI_STR-TEXT04 sy-vline 
WA_RISU_DEREG_ETHI_STR-TEXT05 sy-vline 
WA_RISU_DEREG_ETHI_STR-AGGR_ADD sy-vline 
WA_RISU_DEREG_ETHI_STR-AGGR_VAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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