ABAP Select data from SAP table EWASSERVICEADDRESSSERVICE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWASSERVICEADDRESSSERVICE
*  INTO TABLE @DATA(IT_EWASSERVICEADDRESSSERVICE2).
*--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_EWASSERVICEADDRESSSERVICE INDEX 1 INTO DATA(WA_EWASSERVICEADDRESSSERVICE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWASSERVICEADDRESSSERVICE>-MANDT = 1.
<EWASSERVICEADDRESSSERVICE>-OBJNR = 1.
<EWASSERVICEADDRESSSERVICE>-ROB = 1.
<EWASSERVICEADDRESSSERVICE>-SERVICEADDRESS = 1.
<EWASSERVICEADDRESSSERVICE>-SERVLOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWASSERVICEADDRESSSERVICE-EQUNR, sy-vline,
  WA_EWASSERVICEADDRESSSERVICE-LOGIKNR, sy-vline,
  WA_EWASSERVICEADDRESSSERVICE-DEVGRP, sy-vline,
  WA_EWASSERVICEADDRESSSERVICE-IBASE, sy-vline,
  WA_EWASSERVICEADDRESSSERVICE-GROUP_IDENT, sy-vline,
  WA_EWASSERVICEADDRESSSERVICE-SERVICE_COUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWASSERVICEADDRESSSERVICE 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_EWASSERVICEADDRESSSERVICE 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_EWASSERVICEADDRESSSERVICE INTO WA_EWASSERVICEADDRESSSERVICE.


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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EWASSERVICEADDRESSSERVICE-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWASSERVICEADDRESSSERVICE-UNIT.
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_EWASSERVICEADDRESSSERVICE_STR, 
MANDT TYPE STRING,
OBJNR TYPE STRING,
ROB TYPE STRING,
SERVICEADDRESS TYPE STRING,
SERVLOC TYPE STRING,
EQUNR TYPE STRING,
LOGIKNR TYPE STRING,
DEVGRP TYPE STRING,
IBASE TYPE STRING,
GROUP_IDENT TYPE STRING,
SERVICE_COUNT TYPE STRING,
SERVICEOBJECT TYPE STRING,
WASTE_TYPE TYPE STRING,
PARTNERS TYPE STRING,
SERVICEDESCRIPTION TYPE STRING,
AMOUNT TYPE STRING,
UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWASSERVICEADDRESSSERVICE_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_EWASSERVICEADDRESSSERVICE_STR-MANDT sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-OBJNR sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-ROB sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-SERVICEADDRESS sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-SERVLOC sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-EQUNR sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-LOGIKNR sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-DEVGRP sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-IBASE sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-GROUP_IDENT sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-SERVICE_COUNT sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-SERVICEOBJECT sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-WASTE_TYPE sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-PARTNERS sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-SERVICEDESCRIPTION sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-AMOUNT sy-vline 
WA_EWASSERVICEADDRESSSERVICE_STR-UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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