ABAP Select data from SAP table /BEV2/EDSTOCKTAB_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /BEV2/EDSTOCKTAB_S 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 /BEV2/EDSTOCKTAB_S. 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 /BEV2/EDSTOCKTAB_S 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_/BEV2/EDSTOCKTAB_S TYPE STANDARD TABLE OF /BEV2/EDSTOCKTAB_S,
      WA_/BEV2/EDSTOCKTAB_S TYPE /BEV2/EDSTOCKTAB_S,
      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: </BEV2/EDSTOCKTAB_S> TYPE /BEV2/EDSTOCKTAB_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/BEV2/EDSTOCKTAB_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /BEV2/EDSTOCKTAB_S
  INTO TABLE IT_/BEV2/EDSTOCKTAB_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV2/EDSTOCKTAB_S
*  INTO TABLE @DATA(IT_/BEV2/EDSTOCKTAB_S2).
*--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_/BEV2/EDSTOCKTAB_S INDEX 1 INTO DATA(WA_/BEV2/EDSTOCKTAB_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/BEV2/EDSTOCKTAB_S ASSIGNING </BEV2/EDSTOCKTAB_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV2/EDSTOCKTAB_S>-YHSLAGER = 1.
</BEV2/EDSTOCKTAB_S>-MATNR = 1.
</BEV2/EDSTOCKTAB_S>-GEFINH = 1.
</BEV2/EDSTOCKTAB_S>-YHMATGRP = 1.
</BEV2/EDSTOCKTAB_S>-YHMATGRP_S = 1.

ENDLOOP.

LOOP AT IT_/BEV2/EDSTOCKTAB_S INTO WA_/BEV2/EDSTOCKTAB_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV2/EDSTOCKTAB_S-WERKS, sy-vline,
  WA_/BEV2/EDSTOCKTAB_S-LGORT, sy-vline,
  WA_/BEV2/EDSTOCKTAB_S-YHALKO, sy-vline,
  WA_/BEV2/EDSTOCKTAB_S-BUKRS, sy-vline,
  WA_/BEV2/EDSTOCKTAB_S-YHSLHER, sy-vline,
  WA_/BEV2/EDSTOCKTAB_S-YHVBSNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV2/EDSTOCKTAB_S 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_/BEV2/EDSTOCKTAB_S 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_/BEV2/EDSTOCKTAB_S INTO WA_/BEV2/EDSTOCKTAB_S.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDSTOCKTAB_S-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDSTOCKTAB_S-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field YHABRMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDSTOCKTAB_S-YHABRMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDSTOCKTAB_S-YHABRMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDSTOCKTAB_S-BASME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDSTOCKTAB_S-BASME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PERI, internal->external for field SPMON
CALL FUNCTION 'CONVERSION_EXIT_PERI_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/EDSTOCKTAB_S-SPMON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/EDSTOCKTAB_S-SPMON.
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_/BEV2/EDSTOCKTAB_S_STR, 
YHSLAGER TYPE STRING,
MATNR TYPE STRING,
GEFINH TYPE STRING,
YHMATGRP TYPE STRING,
YHMATGRP_S TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
YHALKO TYPE STRING,
BUKRS TYPE STRING,
YHSLHER TYPE STRING,
YHVBSNR TYPE STRING,
YHBRAUNR TYPE STRING,
YHBESKZ TYPE STRING,
MBWBEST TYPE STRING,
OMBWBEST TYPE STRING,
MKOBEST TYPE STRING,
OMKOBEST TYPE STRING,
GESBEST TYPE STRING,
OGESBEST TYPE STRING,
YHABRMENG TYPE STRING,
YHABRMEIN TYPE STRING,
YHLOSEW TYPE STRING,
BASME TYPE STRING,
SPMON TYPE STRING,
RETST TYPE STRING,
YHSWRET TYPE STRING,
YHSWRETMG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV2/EDSTOCKTAB_S_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_/BEV2/EDSTOCKTAB_S_STR-YHSLAGER sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-MATNR sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-GEFINH sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHMATGRP sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHMATGRP_S sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-WERKS sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-LGORT sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHALKO sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-BUKRS sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHSLHER sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHVBSNR sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHBRAUNR sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHBESKZ sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-MBWBEST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-OMBWBEST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-MKOBEST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-OMKOBEST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-GESBEST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-OGESBEST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHABRMENG sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHABRMEIN sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHLOSEW sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-BASME sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-SPMON sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-RETST sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHSWRET sy-vline 
WA_/BEV2/EDSTOCKTAB_S_STR-YHSWRETMG sy-vline      INTO ld_text SEPARATED BY SPACE.

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