ABAP Select data from SAP table EWA_SCAT_TRANSPORT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EWA_SCAT_TRANSPORT 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_SCAT_TRANSPORT. 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_SCAT_TRANSPORT 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_SCAT_TRANSPORT TYPE STANDARD TABLE OF EWA_SCAT_TRANSPORT,
      WA_EWA_SCAT_TRANSPORT TYPE EWA_SCAT_TRANSPORT,
      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_SCAT_TRANSPORT> TYPE EWA_SCAT_TRANSPORT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWA_SCAT_TRANSPORT
*  INTO TABLE @DATA(IT_EWA_SCAT_TRANSPORT2).
*--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_SCAT_TRANSPORT INDEX 1 INTO DATA(WA_EWA_SCAT_TRANSPORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWA_SCAT_TRANSPORT>-ORDERNR = 1.
<EWA_SCAT_TRANSPORT>-ORDER_LAUFNR = 1.
<EWA_SCAT_TRANSPORT>-ORDER_DATE = 1.
<EWA_SCAT_TRANSPORT>-SERVICE_CAT = 1.
<EWA_SCAT_TRANSPORT>-OBKNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWA_SCAT_TRANSPORT-OBZAE, sy-vline,
  WA_EWA_SCAT_TRANSPORT-SERVLOC, sy-vline,
  WA_EWA_SCAT_TRANSPORT-BEH_TYPE, sy-vline,
  WA_EWA_SCAT_TRANSPORT-SERNR, sy-vline,
  WA_EWA_SCAT_TRANSPORT-BEHGRP, sy-vline,
  WA_EWA_SCAT_TRANSPORT-BEHTYP_RM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWA_SCAT_TRANSPORT 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_SCAT_TRANSPORT 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_SCAT_TRANSPORT INTO WA_EWA_SCAT_TRANSPORT.


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

*Conversion exit TPLNR, internal->external for field SERVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EWA_SCAT_TRANSPORT-SERVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_SCAT_TRANSPORT-SERVLOC.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWA_SCAT_TRANSPORT-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_SCAT_TRANSPORT-SERNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GERNR, internal->external for field SERNR_RM
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_EWA_SCAT_TRANSPORT-SERNR_RM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_SCAT_TRANSPORT-SERNR_RM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field IBASE_NEW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWA_SCAT_TRANSPORT-IBASE_NEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWA_SCAT_TRANSPORT-IBASE_NEW.
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_SCAT_TRANSPORT_STR, 
ORDERNR TYPE STRING,
ORDER_LAUFNR TYPE STRING,
ORDER_DATE TYPE STRING,
SERVICE_CAT TYPE STRING,
OBKNR TYPE STRING,
OBZAE TYPE STRING,
SERVLOC TYPE STRING,
BEH_TYPE TYPE STRING,
SERNR TYPE STRING,
BEHGRP TYPE STRING,
BEHTYP_RM TYPE STRING,
SERNR_RM TYPE STRING,
BEH_ANZAHL_RM TYPE STRING,
BEHGRP_NEW TYPE STRING,
IBASE TYPE STRING,
IBASE_NEW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWA_SCAT_TRANSPORT_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_SCAT_TRANSPORT_STR-ORDERNR sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-ORDER_LAUFNR sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-ORDER_DATE sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-SERVICE_CAT sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-OBKNR sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-OBZAE sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-SERVLOC sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-BEH_TYPE sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-SERNR sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-BEHGRP sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-BEHTYP_RM sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-SERNR_RM sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-BEH_ANZAHL_RM sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-BEHGRP_NEW sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-IBASE sy-vline 
WA_EWA_SCAT_TRANSPORT_STR-IBASE_NEW sy-vline      INTO ld_text SEPARATED BY SPACE.

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