ABAP Select data from SAP table V_521B_F into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_521B_F 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_521B_F. 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_521B_F 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_521B_F TYPE STANDARD TABLE OF V_521B_F,
      WA_V_521B_F TYPE V_521B_F,
      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_521B_F> TYPE V_521B_F.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_521B_F.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_521B_F
  INTO TABLE IT_V_521B_F.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_521B_F
*  INTO TABLE @DATA(IT_V_521B_F2).
*--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_521B_F INDEX 1 INTO DATA(WA_V_521B_F2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_521B_F ASSIGNING <V_521B_F>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_521B_F>-MANDT = 1.
<V_521B_F>-EMFSL = 1.
<V_521B_F>-ENDDA = 1.
<V_521B_F>-BEGDA = 1.
<V_521B_F>-EMFNA = 1.

ENDLOOP.

LOOP AT IT_V_521B_F INTO WA_V_521B_F.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_521B_F-PSTLZ, sy-vline,
  WA_V_521B_F-ORT01, sy-vline,
  WA_V_521B_F-BANKS, sy-vline,
  WA_V_521B_F-BANKL, sy-vline,
  WA_V_521B_F-BKKTO, sy-vline,
  WA_V_521B_F-USBKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_521B_F 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_521B_F 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_521B_F INTO WA_V_521B_F.


*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_521B_F_STR, 
MANDT TYPE STRING,
EMFSL TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
EMFNA TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BKKTO TYPE STRING,
USBKZ TYPE STRING,
ZLSCH TYPE STRING,
STRAS TYPE STRING,
TELNR TYPE STRING,
ETEXT TYPE STRING,
CTRAN TYPE STRING,
PSKTO TYPE STRING,
PBSNR TYPE STRING,
TRANS TYPE STRING,
BKONT TYPE STRING,
BTTYP TYPE STRING,
ESRNR TYPE STRING,
BKREF TYPE STRING,
STATE TYPE STRING,
DEBIT TYPE STRING,
CTRNS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_521B_F_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_521B_F_STR-MANDT sy-vline 
WA_V_521B_F_STR-EMFSL sy-vline 
WA_V_521B_F_STR-ENDDA sy-vline 
WA_V_521B_F_STR-BEGDA sy-vline 
WA_V_521B_F_STR-EMFNA sy-vline 
WA_V_521B_F_STR-PSTLZ sy-vline 
WA_V_521B_F_STR-ORT01 sy-vline 
WA_V_521B_F_STR-BANKS sy-vline 
WA_V_521B_F_STR-BANKL sy-vline 
WA_V_521B_F_STR-BKKTO sy-vline 
WA_V_521B_F_STR-USBKZ sy-vline 
WA_V_521B_F_STR-ZLSCH sy-vline 
WA_V_521B_F_STR-STRAS sy-vline 
WA_V_521B_F_STR-TELNR sy-vline 
WA_V_521B_F_STR-ETEXT sy-vline 
WA_V_521B_F_STR-CTRAN sy-vline 
WA_V_521B_F_STR-PSKTO sy-vline 
WA_V_521B_F_STR-PBSNR sy-vline 
WA_V_521B_F_STR-TRANS sy-vline 
WA_V_521B_F_STR-BKONT sy-vline 
WA_V_521B_F_STR-BTTYP sy-vline 
WA_V_521B_F_STR-ESRNR sy-vline 
WA_V_521B_F_STR-BKREF sy-vline 
WA_V_521B_F_STR-STATE sy-vline 
WA_V_521B_F_STR-DEBIT sy-vline 
WA_V_521B_F_STR-CTRNS sy-vline      INTO ld_text SEPARATED BY SPACE.

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