ABAP Select data from SAP table MPA_S_ASSET_ADJUSTMENT 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_ADJUSTMENT 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_ADJUSTMENT. 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_ADJUSTMENT 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_ADJUSTMENT TYPE STANDARD TABLE OF MPA_S_ASSET_ADJUSTMENT,
      WA_MPA_S_ASSET_ADJUSTMENT TYPE MPA_S_ASSET_ADJUSTMENT,
      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_ADJUSTMENT> TYPE MPA_S_ASSET_ADJUSTMENT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MPA_S_ASSET_ADJUSTMENT
*  INTO TABLE @DATA(IT_MPA_S_ASSET_ADJUSTMENT2).
*--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_ADJUSTMENT INDEX 1 INTO DATA(WA_MPA_S_ASSET_ADJUSTMENT2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MPA_S_ASSET_ADJUSTMENT-ANLN2, sy-vline,
  WA_MPA_S_ASSET_ADJUSTMENT-BWASL, sy-vline,
  WA_MPA_S_ASSET_ADJUSTMENT-AFABE, sy-vline,
  WA_MPA_S_ASSET_ADJUSTMENT-BLDAT, sy-vline,
  WA_MPA_S_ASSET_ADJUSTMENT-BUDAT, sy-vline,
  WA_MPA_S_ASSET_ADJUSTMENT-BZDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MPA_S_ASSET_ADJUSTMENT 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_ADJUSTMENT 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_ADJUSTMENT INTO WA_MPA_S_ASSET_ADJUSTMENT.


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

*Conversion exit ALPHA, internal->external for field ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_ADJUSTMENT-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_ADJUSTMENT-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_ADJUSTMENT-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_ADJUSTMENT-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_ADJUSTMENT-ANBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_ADJUSTMENT-ANBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field PS_POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_ADJUSTMENT-PS_POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_ADJUSTMENT-PS_POSID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC132, internal->external for field AUFNV
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_MPA_S_ASSET_ADJUSTMENT-AUFNV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MPA_S_ASSET_ADJUSTMENT-AUFNV.
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_ADJUSTMENT_STR, 
SLNO TYPE STRING,
STATUS TYPE STRING,
RLDNR TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
BWASL TYPE STRING,
AFABE TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
BZDAT TYPE STRING,
ANBTR TYPE STRING,
SGTXT TYPE STRING,
BLART TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
PS_POSID TYPE STRING,
AUFNL TYPE STRING,
AUFNV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MPA_S_ASSET_ADJUSTMENT_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_ADJUSTMENT_STR-SLNO sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-STATUS sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-RLDNR sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-BUKRS sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-ANLN1 sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-ANLN2 sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-BWASL sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-AFABE sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-BLDAT sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-BUDAT sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-BZDAT sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-ANBTR sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-SGTXT sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-BLART sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-XBLNR sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-ZUONR sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-PS_POSID sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-AUFNL sy-vline 
WA_MPA_S_ASSET_ADJUSTMENT_STR-AUFNV sy-vline      INTO ld_text SEPARATED BY SPACE.

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