ABAP Select data from SAP table MPA_S_ASSET_RETIREMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPA_S_ASSET_RETIREMENT
*  INTO TABLE @DATA(IT_MPA_S_ASSET_RETIREMENT2).
*--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_MPA_S_ASSET_RETIREMENT INDEX 1 INTO DATA(WA_MPA_S_ASSET_RETIREMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MPA_S_ASSET_RETIREMENT>-SLNO = 1.
<MPA_S_ASSET_RETIREMENT>-STATUS = 1.
<MPA_S_ASSET_RETIREMENT>-BUKRS = 1.
<MPA_S_ASSET_RETIREMENT>-ANLN1 = 1.
<MPA_S_ASSET_RETIREMENT>-ANLN2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPA_S_ASSET_RETIREMENT-BWASL, sy-vline,
  WA_MPA_S_ASSET_RETIREMENT-ACC_PRINCIPLE, sy-vline,
  WA_MPA_S_ASSET_RETIREMENT-AFABE, sy-vline,
  WA_MPA_S_ASSET_RETIREMENT-BF_TARGET_LDGRP, sy-vline,
  WA_MPA_S_ASSET_RETIREMENT-BLART, sy-vline,
  WA_MPA_S_ASSET_RETIREMENT-BLDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPA_S_ASSET_RETIREMENT 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_MPA_S_ASSET_RETIREMENT 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_MPA_S_ASSET_RETIREMENT INTO WA_MPA_S_ASSET_RETIREMENT.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_RETIREMENT-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_RETIREMENT-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_RETIREMENT-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_RETIREMENT-ANLN2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ANBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_RETIREMENT-ANBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_RETIREMENT-ANBTR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_RETIREMENT-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_RETIREMENT-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_RETIREMENT-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_RETIREMENT-IMKEY.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field GM_GRANT_NBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_RETIREMENT-GM_GRANT_NBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_RETIREMENT-GM_GRANT_NBR.
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_MPA_S_ASSET_RETIREMENT_STR, 
SLNO TYPE STRING,
STATUS TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
BWASL TYPE STRING,
ACC_PRINCIPLE TYPE STRING,
AFABE TYPE STRING,
BF_TARGET_LDGRP TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
MONAT TYPE STRING,
WWERT_D TYPE STRING,
BF_XVABG TYPE STRING,
ANBTR TYPE STRING,
BF_ERLBT TYPE STRING,
BF_VERKO_D TYPE STRING,
WAERS TYPE STRING,
MENGE_D TYPE STRING,
MEINS TYPE STRING,
BF_PROZS TYPE STRING,
BF_XERBW TYPE STRING,
AFABE_RBWE TYPE STRING,
BZDAT TYPE STRING,
RASSC TYPE STRING,
PARGB TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
BP_GEBER TYPE STRING,
FISTL TYPE STRING,
IMKEY TYPE STRING,
SBERI TYPE STRING,
GM_GRANT_NBR TYPE STRING,
FKBER TYPE STRING,
FM_BUDGET_PERIOD TYPE STRING,
BKTXT TYPE STRING,
XBLNR TYPE STRING,
SGTXT TYPE STRING,
ZUONR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPA_S_ASSET_RETIREMENT_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_MPA_S_ASSET_RETIREMENT_STR-SLNO sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-STATUS sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BUKRS sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-ANLN1 sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-ANLN2 sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BWASL sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-ACC_PRINCIPLE sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-AFABE sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BF_TARGET_LDGRP sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BLART sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BLDAT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BUDAT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-MONAT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-WWERT_D sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BF_XVABG sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-ANBTR sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BF_ERLBT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BF_VERKO_D sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-WAERS sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-MENGE_D sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-MEINS sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BF_PROZS sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BF_XERBW sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-AFABE_RBWE sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BZDAT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-RASSC sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-PARGB sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-AUFNR sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-PS_PSP_PNR sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BP_GEBER sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-FISTL sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-IMKEY sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-SBERI sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-GM_GRANT_NBR sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-FKBER sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-FM_BUDGET_PERIOD sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-BKTXT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-XBLNR sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-SGTXT sy-vline 
WA_MPA_S_ASSET_RETIREMENT_STR-ZUONR sy-vline      INTO ld_text SEPARATED BY SPACE.

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