ABAP Select data from SAP table EAMS_S_INSTLL_W_DATA_TRANSFER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAMS_S_INSTLL_W_DATA_TRANSFER
*  INTO TABLE @DATA(IT_EAMS_S_INSTLL_W_DATA_TRANSFER2).
*--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_EAMS_S_INSTLL_W_DATA_TRANSFER INDEX 1 INTO DATA(WA_EAMS_S_INSTLL_W_DATA_TRANSFER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAMS_S_INSTLL_W_DATA_TRANSFER>-TPLNR = 1.
<EAMS_S_INSTLL_W_DATA_TRANSFER>-EAMS_EQUNR = 1.
<EAMS_S_INSTLL_W_DATA_TRANSFER>-IMPHREFDAT = 1.
<EAMS_S_INSTLL_W_DATA_TRANSFER>-IMPHREFTIM = 1.
<EAMS_S_INSTLL_W_DATA_TRANSFER>-POSNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAMS_S_INSTLL_W_DATA_TRANSFER-SLASH, sy-vline,
  WA_EAMS_S_INSTLL_W_DATA_TRANSFER-EAMS_TEC_OBJ_TYPE, sy-vline,
  WA_EAMS_S_INSTLL_W_DATA_TRANSFER-EAMS_TEC_OBJ_NO, sy-vline,
  WA_EAMS_S_INSTLL_W_DATA_TRANSFER-EAMS_TEC_OBJ_TXT, sy-vline,
  WA_EAMS_S_INSTLL_W_DATA_TRANSFER-DISMANTLE_TEXT, sy-vline,
  WA_EAMS_S_INSTLL_W_DATA_TRANSFER-EAMS_SUP_TO_TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAMS_S_INSTLL_W_DATA_TRANSFER 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_EAMS_S_INSTLL_W_DATA_TRANSFER 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_EAMS_S_INSTLL_W_DATA_TRANSFER INTO WA_EAMS_S_INSTLL_W_DATA_TRANSFER.


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

*Conversion exit ALPHA, internal->external for field EAMS_EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EAMS_S_INSTLL_W_DATA_TRANSFER-EAMS_EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EAMS_S_INSTLL_W_DATA_TRANSFER-EAMS_EQUNR.
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_EAMS_S_INSTLL_W_DATA_TRANSFER_STR, 
TPLNR TYPE STRING,
EAMS_EQUNR TYPE STRING,
IMPHREFDAT TYPE STRING,
IMPHREFTIM TYPE STRING,
POSNR TYPE STRING,
SLASH TYPE STRING,
EAMS_TEC_OBJ_TYPE TYPE STRING,
EAMS_TEC_OBJ_NO TYPE STRING,
EAMS_TEC_OBJ_TXT TYPE STRING,
DISMANTLE_TEXT TYPE STRING,
EAMS_SUP_TO_TYPE TYPE STRING,
EAMS_SUP_TO_NO TYPE STRING,
EAMS_SUP_TO_TXT TYPE STRING,
WITH_DATA_TRANSFER TYPE STRING,
INHERITANCE_FLAGS TYPE STRING,
STORT TYPE STRING,
MSGRP TYPE STRING,
BEBER TYPE STRING,
PPSID TYPE STRING,
ABCKZ TYPE STRING,
EQFNR TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
PROID TYPE STRING,
DAUFN TYPE STRING,
AUFNR TYPE STRING,
IWERK TYPE STRING,
INGRP TYPE STRING,
GEWRK TYPE STRING,
RBNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
ADRNR TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
FIELDDESC TYPE STRING,
FIELDNAME TYPE STRING,
GROUP TYPE STRING,
ROW_COUNTER TYPE STRING,
GROUP_DESC TYPE STRING,
TEC_OBJ_DATA TYPE STRING,
TEC_OBJ_DATA_DESC TYPE STRING,
SUP_TO_DATA TYPE STRING,
SUP_TO_DATA_DESC TYPE STRING,
CHECKBOX TYPE STRING,
TEC_OBJ_COLOR_REF TYPE STRING,
SUP_TO_COLOR_REF TYPE STRING,
KEYFIELD_COLOR_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAMS_S_INSTLL_W_DATA_TRANSFER_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_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-TPLNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_EQUNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-IMPHREFDAT sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-IMPHREFTIM sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-POSNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-SLASH sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_TEC_OBJ_TYPE sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_TEC_OBJ_NO sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_TEC_OBJ_TXT sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-DISMANTLE_TEXT sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_SUP_TO_TYPE sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_SUP_TO_NO sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EAMS_SUP_TO_TXT sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-WITH_DATA_TRANSFER sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-INHERITANCE_FLAGS sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-STORT sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-MSGRP sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-BEBER sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-PPSID sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-ABCKZ sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-EQFNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-GSBER sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-KOSTL sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-PROID sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-DAUFN sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-AUFNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-IWERK sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-INGRP sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-GEWRK sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-RBNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-VKORG sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-VTWEG sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-SPART sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-ADRNR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-VKBUR sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-VKGRP sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-FIELDDESC sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-FIELDNAME sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-GROUP sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-ROW_COUNTER sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-GROUP_DESC sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-TEC_OBJ_DATA sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-TEC_OBJ_DATA_DESC sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-SUP_TO_DATA sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-SUP_TO_DATA_DESC sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-CHECKBOX sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-TEC_OBJ_COLOR_REF sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-SUP_TO_COLOR_REF sy-vline 
WA_EAMS_S_INSTLL_W_DATA_TRANSFER_STR-KEYFIELD_COLOR_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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