ABAP Select data from SAP table /BEV2/S_CS_IT 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_IT 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_IT. 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_IT 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_IT TYPE STANDARD TABLE OF /BEV2/S_CS_IT,
      WA_/BEV2/S_CS_IT TYPE /BEV2/S_CS_IT,
      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_IT> TYPE /BEV2/S_CS_IT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /BEV2/S_CS_IT
*  INTO TABLE @DATA(IT_/BEV2/S_CS_IT2).
*--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_IT INDEX 1 INTO DATA(WA_/BEV2/S_CS_IT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</BEV2/S_CS_IT>-EMCSNR = 1.
</BEV2/S_CS_IT>-ITNEX = 1.
</BEV2/S_CS_IT>-ZEILE = 1.
</BEV2/S_CS_IT>-ITVSY = 1.
</BEV2/S_CS_IT>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/BEV2/S_CS_IT-ITEPC, sy-vline,
  WA_/BEV2/S_CS_IT-CCNST, sy-vline,
  WA_/BEV2/S_CS_IT-FLFIS, sy-vline,
  WA_/BEV2/S_CS_IT-ALCSTR, sy-vline,
  WA_/BEV2/S_CS_IT-DEGPLA, sy-vline,
  WA_/BEV2/S_CS_IT-PRODSI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/BEV2/S_CS_IT 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_IT 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_IT INTO WA_/BEV2/S_CS_IT.


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

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

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

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

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

*Conversion exit CUNIT, internal->external for field QUAREF_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/BEV2/S_CS_IT-QUAREF_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/BEV2/S_CS_IT-QUAREF_UOM.
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_IT_STR, 
EMCSNR TYPE STRING,
ITNEX TYPE STRING,
ZEILE TYPE STRING,
ITVSY TYPE STRING,
MATNR TYPE STRING,
ITEPC TYPE STRING,
CCNST TYPE STRING,
FLFIS TYPE STRING,
ALCSTR TYPE STRING,
DEGPLA TYPE STRING,
PRODSI TYPE STRING,
DENSIT TYPE STRING,
WEIGRO TYPE STRING,
WEIGRO_PRE TYPE STRING,
WEINET TYPE STRING,
WEINET_PRE TYPE STRING,
WEIDIM TYPE STRING,
WINZON TYPE STRING,
WINCAT TYPE STRING,
WINCOO TYPE STRING,
WINOP_C TYPE STRING,
QUAITM TYPE STRING,
QUAITM_PRE TYPE STRING,
QUAITM_UOM TYPE STRING,
DEVIND TYPE STRING,
QUASNE TYPE STRING,
QUASNE_UOM TYPE STRING,
QUAREF TYPE STRING,
QUAREF_UOM TYPE STRING,
TIMESTAMP TYPE STRING,
UNAME TYPE STRING,
PROCESS_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/BEV2/S_CS_IT_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_IT_STR-EMCSNR sy-vline 
WA_/BEV2/S_CS_IT_STR-ITNEX sy-vline 
WA_/BEV2/S_CS_IT_STR-ZEILE sy-vline 
WA_/BEV2/S_CS_IT_STR-ITVSY sy-vline 
WA_/BEV2/S_CS_IT_STR-MATNR sy-vline 
WA_/BEV2/S_CS_IT_STR-ITEPC sy-vline 
WA_/BEV2/S_CS_IT_STR-CCNST sy-vline 
WA_/BEV2/S_CS_IT_STR-FLFIS sy-vline 
WA_/BEV2/S_CS_IT_STR-ALCSTR sy-vline 
WA_/BEV2/S_CS_IT_STR-DEGPLA sy-vline 
WA_/BEV2/S_CS_IT_STR-PRODSI sy-vline 
WA_/BEV2/S_CS_IT_STR-DENSIT sy-vline 
WA_/BEV2/S_CS_IT_STR-WEIGRO sy-vline 
WA_/BEV2/S_CS_IT_STR-WEIGRO_PRE sy-vline 
WA_/BEV2/S_CS_IT_STR-WEINET sy-vline 
WA_/BEV2/S_CS_IT_STR-WEINET_PRE sy-vline 
WA_/BEV2/S_CS_IT_STR-WEIDIM sy-vline 
WA_/BEV2/S_CS_IT_STR-WINZON sy-vline 
WA_/BEV2/S_CS_IT_STR-WINCAT sy-vline 
WA_/BEV2/S_CS_IT_STR-WINCOO sy-vline 
WA_/BEV2/S_CS_IT_STR-WINOP_C sy-vline 
WA_/BEV2/S_CS_IT_STR-QUAITM sy-vline 
WA_/BEV2/S_CS_IT_STR-QUAITM_PRE sy-vline 
WA_/BEV2/S_CS_IT_STR-QUAITM_UOM sy-vline 
WA_/BEV2/S_CS_IT_STR-DEVIND sy-vline 
WA_/BEV2/S_CS_IT_STR-QUASNE sy-vline 
WA_/BEV2/S_CS_IT_STR-QUASNE_UOM sy-vline 
WA_/BEV2/S_CS_IT_STR-QUAREF sy-vline 
WA_/BEV2/S_CS_IT_STR-QUAREF_UOM sy-vline 
WA_/BEV2/S_CS_IT_STR-TIMESTAMP sy-vline 
WA_/BEV2/S_CS_IT_STR-UNAME sy-vline 
WA_/BEV2/S_CS_IT_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.