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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV2/S_CS_HD
*  INTO TABLE @DATA(IT_/BEV2/S_CS_HD2).
*--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/S_CS_HD INDEX 1 INTO DATA(WA_/BEV2/S_CS_HD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV2/S_CS_HD>-EMCSNR = 1.
</BEV2/S_CS_HD>-ARCNO = 1.
</BEV2/S_CS_HD>-LRNNO = 1.
</BEV2/S_CS_HD>-DIRECTION = 1.
</BEV2/S_CS_HD>-MBLNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV2/S_CS_HD-MJAHR, sy-vline,
  WA_/BEV2/S_CS_HD-KUNWE, sy-vline,
  WA_/BEV2/S_CS_HD-LIFNR, sy-vline,
  WA_/BEV2/S_CS_HD-PLANT_FROM, sy-vline,
  WA_/BEV2/S_CS_HD-PLANT_TO, sy-vline,
  WA_/BEV2/S_CS_HD-JORTIM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV2/S_CS_HD 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/S_CS_HD 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/S_CS_HD INTO WA_/BEV2/S_CS_HD.


*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 MBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/S_CS_HD-MBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/S_CS_HD-MBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/S_CS_HD-MJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/S_CS_HD-MJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/S_CS_HD-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/S_CS_HD-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/S_CS_HD-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/S_CS_HD-LIFNR.
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/S_CS_HD_STR, 
EMCSNR TYPE STRING,
ARCNO TYPE STRING,
LRNNO TYPE STRING,
DIRECTION TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
KUNWE TYPE STRING,
LIFNR TYPE STRING,
PLANT_FROM TYPE STRING,
PLANT_TO TYPE STRING,
JORTIM TYPE STRING,
ORITYP TYPE STRING,
DESTYP TYPE STRING,
TRAARR TYPE STRING,
DISPATCH_DATE TYPE STRING,
DISPATCH_TIME TYPE STRING,
ARRIVAL_DATE TYPE STRING,
ARRIVAL_TIME TYPE STRING,
INVNO TYPE STRING,
INVNO_DATE TYPE STRING,
TRAMOD TYPE STRING,
GUACST TYPE STRING,
COEXEM TYPE STRING,
EXPDEL TYPE STRING,
CANREA TYPE STRING,
RECRES TYPE STRING,
REJREA TYPE STRING,
MRNNO TYPE STRING,
EXPLRN TYPE STRING,
FALLNO TYPE STRING,
CATEGORY_CODE TYPE STRING,
TAX_WAREHOUSE TYPE STRING,
COMPLETED TYPE STRING,
TIMESTAMP TYPE STRING,
UNAME TYPE STRING,
PROCESS_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV2/S_CS_HD_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/S_CS_HD_STR-EMCSNR sy-vline 
WA_/BEV2/S_CS_HD_STR-ARCNO sy-vline 
WA_/BEV2/S_CS_HD_STR-LRNNO sy-vline 
WA_/BEV2/S_CS_HD_STR-DIRECTION sy-vline 
WA_/BEV2/S_CS_HD_STR-MBLNR sy-vline 
WA_/BEV2/S_CS_HD_STR-MJAHR sy-vline 
WA_/BEV2/S_CS_HD_STR-KUNWE sy-vline 
WA_/BEV2/S_CS_HD_STR-LIFNR sy-vline 
WA_/BEV2/S_CS_HD_STR-PLANT_FROM sy-vline 
WA_/BEV2/S_CS_HD_STR-PLANT_TO sy-vline 
WA_/BEV2/S_CS_HD_STR-JORTIM sy-vline 
WA_/BEV2/S_CS_HD_STR-ORITYP sy-vline 
WA_/BEV2/S_CS_HD_STR-DESTYP sy-vline 
WA_/BEV2/S_CS_HD_STR-TRAARR sy-vline 
WA_/BEV2/S_CS_HD_STR-DISPATCH_DATE sy-vline 
WA_/BEV2/S_CS_HD_STR-DISPATCH_TIME sy-vline 
WA_/BEV2/S_CS_HD_STR-ARRIVAL_DATE sy-vline 
WA_/BEV2/S_CS_HD_STR-ARRIVAL_TIME sy-vline 
WA_/BEV2/S_CS_HD_STR-INVNO sy-vline 
WA_/BEV2/S_CS_HD_STR-INVNO_DATE sy-vline 
WA_/BEV2/S_CS_HD_STR-TRAMOD sy-vline 
WA_/BEV2/S_CS_HD_STR-GUACST sy-vline 
WA_/BEV2/S_CS_HD_STR-COEXEM sy-vline 
WA_/BEV2/S_CS_HD_STR-EXPDEL sy-vline 
WA_/BEV2/S_CS_HD_STR-CANREA sy-vline 
WA_/BEV2/S_CS_HD_STR-RECRES sy-vline 
WA_/BEV2/S_CS_HD_STR-REJREA sy-vline 
WA_/BEV2/S_CS_HD_STR-MRNNO sy-vline 
WA_/BEV2/S_CS_HD_STR-EXPLRN sy-vline 
WA_/BEV2/S_CS_HD_STR-FALLNO sy-vline 
WA_/BEV2/S_CS_HD_STR-CATEGORY_CODE sy-vline 
WA_/BEV2/S_CS_HD_STR-TAX_WAREHOUSE sy-vline 
WA_/BEV2/S_CS_HD_STR-COMPLETED sy-vline 
WA_/BEV2/S_CS_HD_STR-TIMESTAMP sy-vline 
WA_/BEV2/S_CS_HD_STR-UNAME sy-vline 
WA_/BEV2/S_CS_HD_STR-PROCESS_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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