ABAP Select data from SAP table CACS_S_SD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CACS_S_SD 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 CACS_S_SD. 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 CACS_S_SD 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_CACS_S_SD TYPE STANDARD TABLE OF CACS_S_SD,
      WA_CACS_S_SD TYPE CACS_S_SD,
      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: <CACS_S_SD> TYPE CACS_S_SD.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACS_S_SD
*  INTO TABLE @DATA(IT_CACS_S_SD2).
*--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_CACS_S_SD INDEX 1 INTO DATA(WA_CACS_S_SD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACS_S_SD>-AUBEL = 1.
<CACS_S_SD>-AUDAT = 1.
<CACS_S_SD>-AUFNR = 1.
<CACS_S_SD>-AUGRU = 1.
<CACS_S_SD>-AUPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACS_S_SD-BRSCH, sy-vline,
  WA_CACS_S_SD-ERDAT, sy-vline,
  WA_CACS_S_SD-KUNAG, sy-vline,
  WA_CACS_S_SD-KUNNR, sy-vline,
  WA_CACS_S_SD-LGORT, sy-vline,
  WA_CACS_S_SD-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACS_S_SD 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_CACS_S_SD 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_CACS_S_SD INTO WA_CACS_S_SD.


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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CACS_S_SD-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS_S_SD-VRKME.
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_CACS_S_SD_STR, 
AUBEL TYPE STRING,
AUDAT TYPE STRING,
AUFNR TYPE STRING,
AUGRU TYPE STRING,
AUPOS TYPE STRING,
BRSCH TYPE STRING,
ERDAT TYPE STRING,
KUNAG TYPE STRING,
KUNNR TYPE STRING,
LGORT TYPE STRING,
LIFNR TYPE STRING,
MATNR TYPE STRING,
NETWR TYPE STRING,
POSNR TYPE STRING,
PSTYV TYPE STRING,
SPART TYPE STRING,
VBELN TYPE STRING,
VBTYP TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
VKORG TYPE STRING,
VRKME TYPE STRING,
VTWEG TYPE STRING,
WAERK TYPE STRING,
WERKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACS_S_SD_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_CACS_S_SD_STR-AUBEL sy-vline 
WA_CACS_S_SD_STR-AUDAT sy-vline 
WA_CACS_S_SD_STR-AUFNR sy-vline 
WA_CACS_S_SD_STR-AUGRU sy-vline 
WA_CACS_S_SD_STR-AUPOS sy-vline 
WA_CACS_S_SD_STR-BRSCH sy-vline 
WA_CACS_S_SD_STR-ERDAT sy-vline 
WA_CACS_S_SD_STR-KUNAG sy-vline 
WA_CACS_S_SD_STR-KUNNR sy-vline 
WA_CACS_S_SD_STR-LGORT sy-vline 
WA_CACS_S_SD_STR-LIFNR sy-vline 
WA_CACS_S_SD_STR-MATNR sy-vline 
WA_CACS_S_SD_STR-NETWR sy-vline 
WA_CACS_S_SD_STR-POSNR sy-vline 
WA_CACS_S_SD_STR-PSTYV sy-vline 
WA_CACS_S_SD_STR-SPART sy-vline 
WA_CACS_S_SD_STR-VBELN sy-vline 
WA_CACS_S_SD_STR-VBTYP sy-vline 
WA_CACS_S_SD_STR-VKBUR sy-vline 
WA_CACS_S_SD_STR-VKGRP sy-vline 
WA_CACS_S_SD_STR-VKORG sy-vline 
WA_CACS_S_SD_STR-VRKME sy-vline 
WA_CACS_S_SD_STR-VTWEG sy-vline 
WA_CACS_S_SD_STR-WAERK sy-vline 
WA_CACS_S_SD_STR-WERKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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