ABAP Select data from SAP table V_T529APAO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T529APAO 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 V_T529APAO. 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 V_T529APAO 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_V_T529APAO TYPE STANDARD TABLE OF V_T529APAO,
      WA_V_T529APAO TYPE V_T529APAO,
      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: <V_T529APAO> TYPE V_T529APAO.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T529APAO.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T529APAO
  INTO TABLE IT_V_T529APAO.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T529APAO
*  INTO TABLE @DATA(IT_V_T529APAO2).
*--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_V_T529APAO INDEX 1 INTO DATA(WA_V_T529APAO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T529APAO ASSIGNING <V_T529APAO>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T529APAO>-MANDT = 1.
<V_T529APAO>-MASSN = 1.
<V_T529APAO>-MNTXT = 1.
<V_T529APAO>-FSTAT = 1.
<V_T529APAO>-FUNCH = 1.

ENDLOOP.

LOOP AT IT_V_T529APAO INTO WA_V_T529APAO.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T529APAO-STAT1, sy-vline,
  WA_V_T529APAO-STAT2, sy-vline,
  WA_V_T529APAO-STAT3, sy-vline,
  WA_V_T529APAO-AUSDT, sy-vline,
  WA_V_T529APAO-NAMEN, sy-vline,
  WA_V_T529APAO-ITYGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T529APAO 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_V_T529APAO 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_V_T529APAO INTO WA_V_T529APAO.


*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_V_T529APAO_STR, 
MANDT TYPE STRING,
MASSN TYPE STRING,
MNTXT TYPE STRING,
FSTAT TYPE STRING,
FUNCH TYPE STRING,
STAT1 TYPE STRING,
STAT2 TYPE STRING,
STAT3 TYPE STRING,
AUSDT TYPE STRING,
NAMEN TYPE STRING,
ITYGR TYPE STRING,
WERKS TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
P0000 TYPE STRING,
P0302 TYPE STRING,
ORDNR TYPE STRING,
CTRY_CHG TYPE STRING,
MULTI_PERAS TYPE STRING,
SHOW_PT50 TYPE STRING,
BEN_WB TYPE STRING,
CHG_LEGAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T529APAO_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_V_T529APAO_STR-MANDT sy-vline 
WA_V_T529APAO_STR-MASSN sy-vline 
WA_V_T529APAO_STR-MNTXT sy-vline 
WA_V_T529APAO_STR-FSTAT sy-vline 
WA_V_T529APAO_STR-FUNCH sy-vline 
WA_V_T529APAO_STR-STAT1 sy-vline 
WA_V_T529APAO_STR-STAT2 sy-vline 
WA_V_T529APAO_STR-STAT3 sy-vline 
WA_V_T529APAO_STR-AUSDT sy-vline 
WA_V_T529APAO_STR-NAMEN sy-vline 
WA_V_T529APAO_STR-ITYGR sy-vline 
WA_V_T529APAO_STR-WERKS sy-vline 
WA_V_T529APAO_STR-PERSG sy-vline 
WA_V_T529APAO_STR-PERSK sy-vline 
WA_V_T529APAO_STR-P0000 sy-vline 
WA_V_T529APAO_STR-P0302 sy-vline 
WA_V_T529APAO_STR-ORDNR sy-vline 
WA_V_T529APAO_STR-CTRY_CHG sy-vline 
WA_V_T529APAO_STR-MULTI_PERAS sy-vline 
WA_V_T529APAO_STR-SHOW_PT50 sy-vline 
WA_V_T529APAO_STR-BEN_WB sy-vline 
WA_V_T529APAO_STR-CHG_LEGAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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