ABAP Select data from SAP table EWAEL_WDPPROCP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EWAEL_WDPPROCP 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_WDPPROCP. 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_WDPPROCP 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_WDPPROCP TYPE STANDARD TABLE OF EWAEL_WDPPROCP,
      WA_EWAEL_WDPPROCP TYPE EWAEL_WDPPROCP,
      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_WDPPROCP> TYPE EWAEL_WDPPROCP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAEL_WDPPROCP
*  INTO TABLE @DATA(IT_EWAEL_WDPPROCP2).
*--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_WDPPROCP INDEX 1 INTO DATA(WA_EWAEL_WDPPROCP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAEL_WDPPROCP>-MANDT = 1.
<EWAEL_WDPPROCP>-WDPPROCNR = 1.
<EWAEL_WDPPROCP>-WDPPROTYPOSNR = 1.
<EWAEL_WDPPROCP>-LGNUM = 1.
<EWAEL_WDPPROCP>-LGTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAEL_WDPPROCP-LGPLA, sy-vline,
  WA_EWAEL_WDPPROCP-QUANTITY, sy-vline,
  WA_EWAEL_WDPPROCP-QUANTITYUNIT, sy-vline,
  WA_EWAEL_WDPPROCP-CHARGE_FLG, sy-vline,
  WA_EWAEL_WDPPROCP-CHARGE1, sy-vline,
  WA_EWAEL_WDPPROCP-CHARGE2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAEL_WDPPROCP 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_WDPPROCP 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_WDPPROCP INTO WA_EWAEL_WDPPROCP.


*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 WDPPROCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-WDPPROCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-WDPPROCNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WDPPROTYPOSNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-WDPPROTYPOSNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-WDPPROTYPOSNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT7
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT7
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT7.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT8
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT8
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT8.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT9
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT9
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT9.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT10
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-QUANTITYUNIT10
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-QUANTITYUNIT10.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field WDPLANTNR_POS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-WDPLANTNR_POS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-WDPLANTNR_POS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MBLNR_STO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-MBLNR_STO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-MBLNR_STO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR_STO
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-MJAHR_STO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-MJAHR_STO.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field WDPLANTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPPROCP-WDPLANTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPPROCP-WDPLANTNR.
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_WDPPROCP_STR, 
MANDT TYPE STRING,
WDPPROCNR TYPE STRING,
WDPPROTYPOSNR TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
QUANTITY TYPE STRING,
QUANTITYUNIT TYPE STRING,
CHARGE_FLG TYPE STRING,
CHARGE1 TYPE STRING,
CHARGE2 TYPE STRING,
CHARGE3 TYPE STRING,
CHARGE4 TYPE STRING,
CHARGE5 TYPE STRING,
CHARGE6 TYPE STRING,
CHARGE7 TYPE STRING,
CHARGE8 TYPE STRING,
CHARGE9 TYPE STRING,
CHARGE10 TYPE STRING,
QUANTITY1 TYPE STRING,
QUANTITYUNIT1 TYPE STRING,
QUANTITY2 TYPE STRING,
QUANTITYUNIT2 TYPE STRING,
QUANTITY3 TYPE STRING,
QUANTITYUNIT3 TYPE STRING,
QUANTITY4 TYPE STRING,
QUANTITYUNIT4 TYPE STRING,
QUANTITY5 TYPE STRING,
QUANTITYUNIT5 TYPE STRING,
QUANTITY6 TYPE STRING,
QUANTITYUNIT6 TYPE STRING,
QUANTITY7 TYPE STRING,
QUANTITYUNIT7 TYPE STRING,
QUANTITY8 TYPE STRING,
QUANTITYUNIT8 TYPE STRING,
QUANTITY9 TYPE STRING,
QUANTITYUNIT9 TYPE STRING,
QUANTITY10 TYPE STRING,
QUANTITYUNIT10 TYPE STRING,
WDPLANTNR_POS TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
MBLNR_STO TYPE STRING,
MJAHR_STO TYPE STRING,
MATNR TYPE STRING,
RATIO TYPE STRING,
MAKTX TYPE STRING,
BWART TYPE STRING,
BWARTSTORNO TYPE STRING,
SHKZG TYPE STRING,
BWTXT TYPE STRING,
BWTXTSTORNO TYPE STRING,
WDPLANTNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAEL_WDPPROCP_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_WDPPROCP_STR-MANDT sy-vline 
WA_EWAEL_WDPPROCP_STR-WDPPROCNR sy-vline 
WA_EWAEL_WDPPROCP_STR-WDPPROTYPOSNR sy-vline 
WA_EWAEL_WDPPROCP_STR-LGNUM sy-vline 
WA_EWAEL_WDPPROCP_STR-LGTYP sy-vline 
WA_EWAEL_WDPPROCP_STR-LGPLA sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE_FLG sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE1 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE2 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE3 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE4 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE5 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE6 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE7 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE8 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE9 sy-vline 
WA_EWAEL_WDPPROCP_STR-CHARGE10 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY1 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT1 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY2 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT2 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY3 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT3 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY4 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT4 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY5 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT5 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY6 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT6 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY7 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT7 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY8 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT8 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY9 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT9 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITY10 sy-vline 
WA_EWAEL_WDPPROCP_STR-QUANTITYUNIT10 sy-vline 
WA_EWAEL_WDPPROCP_STR-WDPLANTNR_POS sy-vline 
WA_EWAEL_WDPPROCP_STR-MBLNR sy-vline 
WA_EWAEL_WDPPROCP_STR-MJAHR sy-vline 
WA_EWAEL_WDPPROCP_STR-MBLNR_STO sy-vline 
WA_EWAEL_WDPPROCP_STR-MJAHR_STO sy-vline 
WA_EWAEL_WDPPROCP_STR-MATNR sy-vline 
WA_EWAEL_WDPPROCP_STR-RATIO sy-vline 
WA_EWAEL_WDPPROCP_STR-MAKTX sy-vline 
WA_EWAEL_WDPPROCP_STR-BWART sy-vline 
WA_EWAEL_WDPPROCP_STR-BWARTSTORNO sy-vline 
WA_EWAEL_WDPPROCP_STR-SHKZG sy-vline 
WA_EWAEL_WDPPROCP_STR-BWTXT sy-vline 
WA_EWAEL_WDPPROCP_STR-BWTXTSTORNO sy-vline 
WA_EWAEL_WDPPROCP_STR-WDPLANTNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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