ABAP Select data from SAP table EWAEL_WDPPROTY into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAEL_WDPPROTY
*  INTO TABLE @DATA(IT_EWAEL_WDPPROTY2).
*--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_EWAEL_WDPPROTY INDEX 1 INTO DATA(WA_EWAEL_WDPPROTY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAEL_WDPPROTY>-MANDT = 1.
<EWAEL_WDPPROTY>-WDPPROTYNR = 1.
<EWAEL_WDPPROTY>-WDPPROGRNR = 1.
<EWAEL_WDPPROTY>-ISSPLITTING = 1.
<EWAEL_WDPPROTY>-DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAEL_WDPPROTY-KOKRS, sy-vline,
  WA_EWAEL_WDPPROTY-KOSTL, sy-vline,
  WA_EWAEL_WDPPROTY-DATBI, sy-vline,
  WA_EWAEL_WDPPROTY-ACTIVE, sy-vline,
  WA_EWAEL_WDPPROTY-DISCARDED, sy-vline,
  WA_EWAEL_WDPPROTY-ERDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAEL_WDPPROTY 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_EWAEL_WDPPROTY 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_EWAEL_WDPPROTY INTO WA_EWAEL_WDPPROTY.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROTY-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROTY-KOSTL.
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_EWAEL_WDPPROTY_STR, 
MANDT TYPE STRING,
WDPPROTYNR TYPE STRING,
WDPPROGRNR TYPE STRING,
ISSPLITTING TYPE STRING,
DESCRIPTION TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
DATBI TYPE STRING,
ACTIVE TYPE STRING,
DISCARDED TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
L_KOKRS_BEZEI TYPE STRING,
WDPPROGR_DESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAEL_WDPPROTY_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_EWAEL_WDPPROTY_STR-MANDT sy-vline 
WA_EWAEL_WDPPROTY_STR-WDPPROTYNR sy-vline 
WA_EWAEL_WDPPROTY_STR-WDPPROGRNR sy-vline 
WA_EWAEL_WDPPROTY_STR-ISSPLITTING sy-vline 
WA_EWAEL_WDPPROTY_STR-DESCRIPTION sy-vline 
WA_EWAEL_WDPPROTY_STR-KOKRS sy-vline 
WA_EWAEL_WDPPROTY_STR-KOSTL sy-vline 
WA_EWAEL_WDPPROTY_STR-DATBI sy-vline 
WA_EWAEL_WDPPROTY_STR-ACTIVE sy-vline 
WA_EWAEL_WDPPROTY_STR-DISCARDED sy-vline 
WA_EWAEL_WDPPROTY_STR-ERDAT sy-vline 
WA_EWAEL_WDPPROTY_STR-ERNAM sy-vline 
WA_EWAEL_WDPPROTY_STR-AEDAT sy-vline 
WA_EWAEL_WDPPROTY_STR-AENAM sy-vline 
WA_EWAEL_WDPPROTY_STR-BEGRU sy-vline 
WA_EWAEL_WDPPROTY_STR-LOEVM sy-vline 
WA_EWAEL_WDPPROTY_STR-L_KOKRS_BEZEI sy-vline 
WA_EWAEL_WDPPROTY_STR-WDPPROGR_DESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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