ABAP Select data from SAP table V_JSBW_POS_EXT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_JSBW_POS_EXT 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_JSBW_POS_EXT. 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_JSBW_POS_EXT 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_JSBW_POS_EXT TYPE STANDARD TABLE OF V_JSBW_POS_EXT,
      WA_V_JSBW_POS_EXT TYPE V_JSBW_POS_EXT,
      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_JSBW_POS_EXT> TYPE V_JSBW_POS_EXT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_JSBW_POS_EXT
*  INTO TABLE @DATA(IT_V_JSBW_POS_EXT2).
*--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_JSBW_POS_EXT INDEX 1 INTO DATA(WA_V_JSBW_POS_EXT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_JSBW_POS_EXT>-MANDT = 1.
<V_JSBW_POS_EXT>-VBELN = 1.
<V_JSBW_POS_EXT>-POSNR = 1.
<V_JSBW_POS_EXT>-GPAG = 1.
<V_JSBW_POS_EXT>-VBTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_JSBW_POS_EXT-TRVOG, sy-vline,
  WA_V_JSBW_POS_EXT-AUART, sy-vline,
  WA_V_JSBW_POS_EXT-AUARTGRP, sy-vline,
  WA_V_JSBW_POS_EXT-WAERK, sy-vline,
  WA_V_JSBW_POS_EXT-NETWR, sy-vline,
  WA_V_JSBW_POS_EXT-VKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_JSBW_POS_EXT 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_JSBW_POS_EXT 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_JSBW_POS_EXT INTO WA_V_JSBW_POS_EXT.


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

*Conversion exit ALPHA, internal->external for field GPAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_JSBW_POS_EXT-GPAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_JSBW_POS_EXT-GPAG.
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_V_JSBW_POS_EXT_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
GPAG TYPE STRING,
VBTYP TYPE STRING,
TRVOG TYPE STRING,
AUART TYPE STRING,
AUARTGRP TYPE STRING,
WAERK TYPE STRING,
NETWR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
XIMMATRIK TYPE STRING,
IMMATDAT TYPE STRING,
XFKBASAUFT TYPE STRING,
XFKBASLIEF TYPE STRING,
XWBZABO TYPE STRING,
XFKVDICHT TYPE STRING,
XRENEWAL TYPE STRING,
AMORTN TYPE STRING,
GUELTIGVON TYPE STRING,
GUELTIGBIS TYPE STRING,
POSEX TYPE STRING,
POART TYPE STRING,
AEART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_JSBW_POS_EXT_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_JSBW_POS_EXT_STR-MANDT sy-vline 
WA_V_JSBW_POS_EXT_STR-VBELN sy-vline 
WA_V_JSBW_POS_EXT_STR-POSNR sy-vline 
WA_V_JSBW_POS_EXT_STR-GPAG sy-vline 
WA_V_JSBW_POS_EXT_STR-VBTYP sy-vline 
WA_V_JSBW_POS_EXT_STR-TRVOG sy-vline 
WA_V_JSBW_POS_EXT_STR-AUART sy-vline 
WA_V_JSBW_POS_EXT_STR-AUARTGRP sy-vline 
WA_V_JSBW_POS_EXT_STR-WAERK sy-vline 
WA_V_JSBW_POS_EXT_STR-NETWR sy-vline 
WA_V_JSBW_POS_EXT_STR-VKORG sy-vline 
WA_V_JSBW_POS_EXT_STR-VTWEG sy-vline 
WA_V_JSBW_POS_EXT_STR-SPART sy-vline 
WA_V_JSBW_POS_EXT_STR-VKGRP sy-vline 
WA_V_JSBW_POS_EXT_STR-VKBUR sy-vline 
WA_V_JSBW_POS_EXT_STR-XIMMATRIK sy-vline 
WA_V_JSBW_POS_EXT_STR-IMMATDAT sy-vline 
WA_V_JSBW_POS_EXT_STR-XFKBASAUFT sy-vline 
WA_V_JSBW_POS_EXT_STR-XFKBASLIEF sy-vline 
WA_V_JSBW_POS_EXT_STR-XWBZABO sy-vline 
WA_V_JSBW_POS_EXT_STR-XFKVDICHT sy-vline 
WA_V_JSBW_POS_EXT_STR-XRENEWAL sy-vline 
WA_V_JSBW_POS_EXT_STR-AMORTN sy-vline 
WA_V_JSBW_POS_EXT_STR-GUELTIGVON sy-vline 
WA_V_JSBW_POS_EXT_STR-GUELTIGBIS sy-vline 
WA_V_JSBW_POS_EXT_STR-POSEX sy-vline 
WA_V_JSBW_POS_EXT_STR-POART sy-vline 
WA_V_JSBW_POS_EXT_STR-AEART sy-vline      INTO ld_text SEPARATED BY SPACE.

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