ABAP Select data from SAP table ETDECIDPOP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ETDECIDPOP
*  INTO TABLE @DATA(IT_ETDECIDPOP2).
*--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_ETDECIDPOP INDEX 1 INTO DATA(WA_ETDECIDPOP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ETDECIDPOP>-TITEL = 1.
<ETDECIDPOP>-TEXTLINE1 = 1.
<ETDECIDPOP>-TEXTLINE2 = 1.
<ETDECIDPOP>-TEXTLINE3 = 1.
<ETDECIDPOP>-OPTION1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ETDECIDPOP-OPTION2, sy-vline,
  WA_ETDECIDPOP-OPTION3, sy-vline,
  WA_ETDECIDPOP-DIAGNOSE, sy-vline,
  WA_ETDECIDPOP-DIAGNOSE1, sy-vline,
  WA_ETDECIDPOP-DIAGNOSE2, sy-vline,
  WA_ETDECIDPOP-DIAGNOSE3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ETDECIDPOP 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_ETDECIDPOP 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_ETDECIDPOP INTO WA_ETDECIDPOP.


*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_ETDECIDPOP_STR, 
TITEL TYPE STRING,
TEXTLINE1 TYPE STRING,
TEXTLINE2 TYPE STRING,
TEXTLINE3 TYPE STRING,
OPTION1 TYPE STRING,
OPTION2 TYPE STRING,
OPTION3 TYPE STRING,
DIAGNOSE TYPE STRING,
DIAGNOSE1 TYPE STRING,
DIAGNOSE2 TYPE STRING,
DIAGNOSE3 TYPE STRING,
VAROPTION1 TYPE STRING,
VAROPTION2 TYPE STRING,
VAROPTION3 TYPE STRING,
OPTION_CAN TYPE STRING,
CHECKBOX1 TYPE STRING,
CHECKBOX1_TEXT TYPE STRING,
RADIOBUTTON1 TYPE STRING,
RADIOBUTTON1_TEXT TYPE STRING,
RADIOBUTTON2 TYPE STRING,
RADIOBUTTON2_TEXT TYPE STRING,
RADIOBUTTON3 TYPE STRING,
RADIOBUTTON3_TEXT TYPE STRING,
TEXTLINE4 TYPE STRING,
CHECKBOX2 TYPE STRING,
CHECKBOX2_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ETDECIDPOP_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_ETDECIDPOP_STR-TITEL sy-vline 
WA_ETDECIDPOP_STR-TEXTLINE1 sy-vline 
WA_ETDECIDPOP_STR-TEXTLINE2 sy-vline 
WA_ETDECIDPOP_STR-TEXTLINE3 sy-vline 
WA_ETDECIDPOP_STR-OPTION1 sy-vline 
WA_ETDECIDPOP_STR-OPTION2 sy-vline 
WA_ETDECIDPOP_STR-OPTION3 sy-vline 
WA_ETDECIDPOP_STR-DIAGNOSE sy-vline 
WA_ETDECIDPOP_STR-DIAGNOSE1 sy-vline 
WA_ETDECIDPOP_STR-DIAGNOSE2 sy-vline 
WA_ETDECIDPOP_STR-DIAGNOSE3 sy-vline 
WA_ETDECIDPOP_STR-VAROPTION1 sy-vline 
WA_ETDECIDPOP_STR-VAROPTION2 sy-vline 
WA_ETDECIDPOP_STR-VAROPTION3 sy-vline 
WA_ETDECIDPOP_STR-OPTION_CAN sy-vline 
WA_ETDECIDPOP_STR-CHECKBOX1 sy-vline 
WA_ETDECIDPOP_STR-CHECKBOX1_TEXT sy-vline 
WA_ETDECIDPOP_STR-RADIOBUTTON1 sy-vline 
WA_ETDECIDPOP_STR-RADIOBUTTON1_TEXT sy-vline 
WA_ETDECIDPOP_STR-RADIOBUTTON2 sy-vline 
WA_ETDECIDPOP_STR-RADIOBUTTON2_TEXT sy-vline 
WA_ETDECIDPOP_STR-RADIOBUTTON3 sy-vline 
WA_ETDECIDPOP_STR-RADIOBUTTON3_TEXT sy-vline 
WA_ETDECIDPOP_STR-TEXTLINE4 sy-vline 
WA_ETDECIDPOP_STR-CHECKBOX2 sy-vline 
WA_ETDECIDPOP_STR-CHECKBOX2_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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