ABAP Select data from SAP table /BEV1/TSZKK_BWV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV1/TSZKK_BWV 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 /BEV1/TSZKK_BWV. 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 /BEV1/TSZKK_BWV 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_/BEV1/TSZKK_BWV TYPE STANDARD TABLE OF /BEV1/TSZKK_BWV,
      WA_/BEV1/TSZKK_BWV TYPE /BEV1/TSZKK_BWV,
      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: </BEV1/TSZKK_BWV> TYPE /BEV1/TSZKK_BWV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV1/TSZKK_BWV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV1/TSZKK_BWV
  INTO TABLE IT_/BEV1/TSZKK_BWV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV1/TSZKK_BWV
*  INTO TABLE @DATA(IT_/BEV1/TSZKK_BWV2).
*--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_/BEV1/TSZKK_BWV INDEX 1 INTO DATA(WA_/BEV1/TSZKK_BWV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV1/TSZKK_BWV ASSIGNING </BEV1/TSZKK_BWV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV1/TSZKK_BWV>-MANDT = 1.
</BEV1/TSZKK_BWV>-KUNNR = 1.
</BEV1/TSZKK_BWV>-VKORG = 1.
</BEV1/TSZKK_BWV>-VTWEG = 1.
</BEV1/TSZKK_BWV>-SPART = 1.

ENDLOOP.

LOOP AT IT_/BEV1/TSZKK_BWV INTO WA_/BEV1/TSZKK_BWV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV1/TSZKK_BWV-ANWBER, sy-vline,
  WA_/BEV1/TSZKK_BWV-PARNR, sy-vline,
  WA_/BEV1/TSZKK_BWV-SAISON, sy-vline,
  WA_/BEV1/TSZKK_BWV-ANWGRP, sy-vline,
  WA_/BEV1/TSZKK_BWV-GUELTV, sy-vline,
  WA_/BEV1/TSZKK_BWV-GUELTB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV1/TSZKK_BWV 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_/BEV1/TSZKK_BWV 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_/BEV1/TSZKK_BWV INTO WA_/BEV1/TSZKK_BWV.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/TSZKK_BWV-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/TSZKK_BWV-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_/BEV1/TSZKK_BWV-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV1/TSZKK_BWV-AUART.
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_/BEV1/TSZKK_BWV_STR, 
MANDT TYPE STRING,
KUNNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
ANWBER TYPE STRING,
PARNR TYPE STRING,
SAISON TYPE STRING,
ANWGRP TYPE STRING,
GUELTV TYPE STRING,
GUELTB TYPE STRING,
AUSZV TYPE STRING,
AUSZB TYPE STRING,
RHYTHMS TYPE STRING,
VERKMET TYPE STRING,
LIEFMO TYPE STRING,
LIEFDI TYPE STRING,
LIEFMI TYPE STRING,
LIEFDO TYPE STRING,
LIEFFR TYPE STRING,
LIEFSA TYPE STRING,
LIEFSO TYPE STRING,
KONTBEG TYPE STRING,
STDSTART TYPE STRING,
AUART TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV1/TSZKK_BWV_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_/BEV1/TSZKK_BWV_STR-MANDT sy-vline 
WA_/BEV1/TSZKK_BWV_STR-KUNNR sy-vline 
WA_/BEV1/TSZKK_BWV_STR-VKORG sy-vline 
WA_/BEV1/TSZKK_BWV_STR-VTWEG sy-vline 
WA_/BEV1/TSZKK_BWV_STR-SPART sy-vline 
WA_/BEV1/TSZKK_BWV_STR-ANWBER sy-vline 
WA_/BEV1/TSZKK_BWV_STR-PARNR sy-vline 
WA_/BEV1/TSZKK_BWV_STR-SAISON sy-vline 
WA_/BEV1/TSZKK_BWV_STR-ANWGRP sy-vline 
WA_/BEV1/TSZKK_BWV_STR-GUELTV sy-vline 
WA_/BEV1/TSZKK_BWV_STR-GUELTB sy-vline 
WA_/BEV1/TSZKK_BWV_STR-AUSZV sy-vline 
WA_/BEV1/TSZKK_BWV_STR-AUSZB sy-vline 
WA_/BEV1/TSZKK_BWV_STR-RHYTHMS sy-vline 
WA_/BEV1/TSZKK_BWV_STR-VERKMET sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFMO sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFDI sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFMI sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFDO sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFFR sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFSA sy-vline 
WA_/BEV1/TSZKK_BWV_STR-LIEFSO sy-vline 
WA_/BEV1/TSZKK_BWV_STR-KONTBEG sy-vline 
WA_/BEV1/TSZKK_BWV_STR-STDSTART sy-vline 
WA_/BEV1/TSZKK_BWV_STR-AUART sy-vline 
WA_/BEV1/TSZKK_BWV_STR-AENAM sy-vline 
WA_/BEV1/TSZKK_BWV_STR-AEDAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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