ABAP Select data from SAP table EWA_BILL_RELEVNT 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 EWA_BILL_RELEVNT 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 EWA_BILL_RELEVNT. 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 EWA_BILL_RELEVNT 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_EWA_BILL_RELEVNT TYPE STANDARD TABLE OF EWA_BILL_RELEVNT,
      WA_EWA_BILL_RELEVNT TYPE EWA_BILL_RELEVNT,
      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: <EWA_BILL_RELEVNT> TYPE EWA_BILL_RELEVNT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWA_BILL_RELEVNT
*  INTO TABLE @DATA(IT_EWA_BILL_RELEVNT2).
*--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_EWA_BILL_RELEVNT INDEX 1 INTO DATA(WA_EWA_BILL_RELEVNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWA_BILL_RELEVNT>-MANDT = 1.
<EWA_BILL_RELEVNT>-BILLTYPE = 1.
<EWA_BILL_RELEVNT>-LAUFNR = 1.
<EWA_BILL_RELEVNT>-CONT_COUNT = 1.
<EWA_BILL_RELEVNT>-BEH_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWA_BILL_RELEVNT-DIFFCULT, sy-vline,
  WA_EWA_BILL_RELEVNT-FREQUENZ, sy-vline,
  WA_EWA_BILL_RELEVNT-WASTE_TYPE, sy-vline,
  WA_EWA_BILL_RELEVNT-KOMPFAKT, sy-vline,
  WA_EWA_BILL_RELEVNT-NO_UNITIES, sy-vline,
  WA_EWA_BILL_RELEVNT-ANZPERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWA_BILL_RELEVNT 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_EWA_BILL_RELEVNT 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_EWA_BILL_RELEVNT INTO WA_EWA_BILL_RELEVNT.


*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 MATN1, internal->external for field BEH_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWA_BILL_RELEVNT-BEH_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_BILL_RELEVNT-BEH_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field WASTE_TYPE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWA_BILL_RELEVNT-WASTE_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_BILL_RELEVNT-WASTE_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field WASTE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EWA_BILL_RELEVNT-WASTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_BILL_RELEVNT-WASTE.
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_EWA_BILL_RELEVNT_STR, 
MANDT TYPE STRING,
BILLTYPE TYPE STRING,
LAUFNR TYPE STRING,
CONT_COUNT TYPE STRING,
BEH_TYPE TYPE STRING,
DIFFCULT TYPE STRING,
FREQUENZ TYPE STRING,
WASTE_TYPE TYPE STRING,
KOMPFAKT TYPE STRING,
NO_UNITIES TYPE STRING,
ANZPERS TYPE STRING,
WINTERLEVEL TYPE STRING,
ROBTYP TYPE STRING,
REMENG TYPE STRING,
FLAECHE TYPE STRING,
WEEKLY TYPE STRING,
MONTH_COUNT TYPE STRING,
DAY_TYPE TYPE STRING,
BEH_ANZAHL_RM TYPE STRING,
WASTE_WEIGHT TYPE STRING,
WASTE TYPE STRING,
WASTE_VOL TYPE STRING,
CONFTYPE TYPE STRING,
ABRMENGE TYPE STRING,
RATEDVAL TYPE STRING,
DAY_FREQUENCY TYPE STRING,
FREQZUS TYPE STRING,
REGIOGROUP TYPE STRING,
REGNAME TYPE STRING,
STYPETXT TYPE STRING,
KONDIGR TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWA_BILL_RELEVNT_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_EWA_BILL_RELEVNT_STR-MANDT sy-vline 
WA_EWA_BILL_RELEVNT_STR-BILLTYPE sy-vline 
WA_EWA_BILL_RELEVNT_STR-LAUFNR sy-vline 
WA_EWA_BILL_RELEVNT_STR-CONT_COUNT sy-vline 
WA_EWA_BILL_RELEVNT_STR-BEH_TYPE sy-vline 
WA_EWA_BILL_RELEVNT_STR-DIFFCULT sy-vline 
WA_EWA_BILL_RELEVNT_STR-FREQUENZ sy-vline 
WA_EWA_BILL_RELEVNT_STR-WASTE_TYPE sy-vline 
WA_EWA_BILL_RELEVNT_STR-KOMPFAKT sy-vline 
WA_EWA_BILL_RELEVNT_STR-NO_UNITIES sy-vline 
WA_EWA_BILL_RELEVNT_STR-ANZPERS sy-vline 
WA_EWA_BILL_RELEVNT_STR-WINTERLEVEL sy-vline 
WA_EWA_BILL_RELEVNT_STR-ROBTYP sy-vline 
WA_EWA_BILL_RELEVNT_STR-REMENG sy-vline 
WA_EWA_BILL_RELEVNT_STR-FLAECHE sy-vline 
WA_EWA_BILL_RELEVNT_STR-WEEKLY sy-vline 
WA_EWA_BILL_RELEVNT_STR-MONTH_COUNT sy-vline 
WA_EWA_BILL_RELEVNT_STR-DAY_TYPE sy-vline 
WA_EWA_BILL_RELEVNT_STR-BEH_ANZAHL_RM sy-vline 
WA_EWA_BILL_RELEVNT_STR-WASTE_WEIGHT sy-vline 
WA_EWA_BILL_RELEVNT_STR-WASTE sy-vline 
WA_EWA_BILL_RELEVNT_STR-WASTE_VOL sy-vline 
WA_EWA_BILL_RELEVNT_STR-CONFTYPE sy-vline 
WA_EWA_BILL_RELEVNT_STR-ABRMENGE sy-vline 
WA_EWA_BILL_RELEVNT_STR-RATEDVAL sy-vline 
WA_EWA_BILL_RELEVNT_STR-DAY_FREQUENCY sy-vline 
WA_EWA_BILL_RELEVNT_STR-FREQZUS sy-vline 
WA_EWA_BILL_RELEVNT_STR-REGIOGROUP sy-vline 
WA_EWA_BILL_RELEVNT_STR-REGNAME sy-vline 
WA_EWA_BILL_RELEVNT_STR-STYPETXT sy-vline 
WA_EWA_BILL_RELEVNT_STR-KONDIGR sy-vline 
WA_EWA_BILL_RELEVNT_STR-ERDAT sy-vline 
WA_EWA_BILL_RELEVNT_STR-ERNAM sy-vline 
WA_EWA_BILL_RELEVNT_STR-AEDAT sy-vline 
WA_EWA_BILL_RELEVNT_STR-AENAM sy-vline 
WA_EWA_BILL_RELEVNT_STR-BEGRU sy-vline 
WA_EWA_BILL_RELEVNT_STR-LOEVM sy-vline      INTO ld_text SEPARATED BY SPACE.

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