ABAP Select data from SAP table ADSPC2_DISPLAY_2014 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ADSPC2_DISPLAY_2014 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 ADSPC2_DISPLAY_2014. 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 ADSPC2_DISPLAY_2014 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_ADSPC2_DISPLAY_2014 TYPE STANDARD TABLE OF ADSPC2_DISPLAY_2014,
      WA_ADSPC2_DISPLAY_2014 TYPE ADSPC2_DISPLAY_2014,
      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: <ADSPC2_DISPLAY_2014> TYPE ADSPC2_DISPLAY_2014.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ADSPC2_DISPLAY_2014.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ADSPC2_DISPLAY_2014
  INTO TABLE IT_ADSPC2_DISPLAY_2014.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ADSPC2_DISPLAY_2014
*  INTO TABLE @DATA(IT_ADSPC2_DISPLAY_20142).
*--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_ADSPC2_DISPLAY_2014 INDEX 1 INTO DATA(WA_ADSPC2_DISPLAY_20142).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ADSPC2_DISPLAY_2014 ASSIGNING <ADSPC2_DISPLAY_2014>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ADSPC2_DISPLAY_2014>-TAD = 1.
<ADSPC2_DISPLAY_2014>-UST = 1.
<ADSPC2_DISPLAY_2014>-CRP = 1.
<ADSPC2_DISPLAY_2014>-CND = 1.
<ADSPC2_DISPLAY_2014>-SOR = 1.

ENDLOOP.

LOOP AT IT_ADSPC2_DISPLAY_2014 INTO WA_ADSPC2_DISPLAY_2014.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ADSPC2_DISPLAY_2014-SRN, sy-vline,
  WA_ADSPC2_DISPLAY_2014-CES, sy-vline,
  WA_ADSPC2_DISPLAY_2014-CET, sy-vline,
  WA_ADSPC2_DISPLAY_2014-CRD, sy-vline,
  WA_ADSPC2_DISPLAY_2014-SER, sy-vline,
  WA_ADSPC2_DISPLAY_2014-WON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ADSPC2_DISPLAY_2014 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_ADSPC2_DISPLAY_2014 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_ADSPC2_DISPLAY_2014 INTO WA_ADSPC2_DISPLAY_2014.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ADSPC2_DISPLAY_2014_STR, 
TAD TYPE STRING,
UST TYPE STRING,
CRP TYPE STRING,
CND TYPE STRING,
SOR TYPE STRING,
SRN TYPE STRING,
CES TYPE STRING,
CET TYPE STRING,
CRD TYPE STRING,
SER TYPE STRING,
WON TYPE STRING,
DMF TYPE STRING,
EXD TYPE STRING,
LOT TYPE STRING,
PAK TYPE STRING,
ODT TYPE STRING,
TRF TYPE STRING,
BII TYPE STRING,
NQT TYPE STRING,
WTC TYPE STRING,
WCR TYPE STRING,
TTM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ADSPC2_DISPLAY_2014_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_ADSPC2_DISPLAY_2014_STR-TAD sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-UST sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-CRP sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-CND sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-SOR sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-SRN sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-CES sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-CET sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-CRD sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-SER sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-WON sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-DMF sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-EXD sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-LOT sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-PAK sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-ODT sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-TRF sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-BII sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-NQT sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-WTC sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-WCR sy-vline 
WA_ADSPC2_DISPLAY_2014_STR-TTM sy-vline      INTO ld_text SEPARATED BY SPACE.

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