ABAP Select data from SAP table CACSXC_DOCCD_P_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACSXC_DOCCD_P_D
*  INTO TABLE @DATA(IT_CACSXC_DOCCD_P_D2).
*--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_CACSXC_DOCCD_P_D INDEX 1 INTO DATA(WA_CACSXC_DOCCD_P_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACSXC_DOCCD_P_D>-PAYEE_ISCD = 1.
<CACSXC_DOCCD_P_D>-BLTYP = 1.
<CACSXC_DOCCD_P_D>-CCODE = 1.
<CACSXC_DOCCD_P_D>-TAX_CODE = 1.
<CACSXC_DOCCD_P_D>-COSTCENTER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACSXC_DOCCD_P_D-GPART, sy-vline,
  WA_CACSXC_DOCCD_P_D-GPART_CTRT, sy-vline,
  WA_CACSXC_DOCCD_P_D-PMNT_BLOCK, sy-vline,
  WA_CACSXC_DOCCD_P_D-GROSS_AMT_MARK, sy-vline,
  WA_CACSXC_DOCCD_P_D-PMTRF, sy-vline,
  WA_CACSXC_DOCCD_P_D-PMTTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACSXC_DOCCD_P_D 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_CACSXC_DOCCD_P_D 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_CACSXC_DOCCD_P_D INTO WA_CACSXC_DOCCD_P_D.


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

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

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

*Conversion exit ALPHA, internal->external for field VTRE2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACSXC_DOCCD_P_D-VTRE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACSXC_DOCCD_P_D-VTRE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGPART2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACSXC_DOCCD_P_D-VGPART2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACSXC_DOCCD_P_D-VGPART2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACSXC_DOCCD_P_D-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACSXC_DOCCD_P_D-BELNR.
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_CACSXC_DOCCD_P_D_STR, 
PAYEE_ISCD TYPE STRING,
BLTYP TYPE STRING,
CCODE TYPE STRING,
TAX_CODE TYPE STRING,
COSTCENTER TYPE STRING,
GPART TYPE STRING,
GPART_CTRT TYPE STRING,
PMNT_BLOCK TYPE STRING,
GROSS_AMT_MARK TYPE STRING,
PMTRF TYPE STRING,
PMTTO TYPE STRING,
GSBER TYPE STRING,
PRGRP TYPE STRING,
TVORG TYPE STRING,
HVORG TYPE STRING,
VTRE2 TYPE STRING,
VGPART2 TYPE STRING,
VTREF TYPE STRING,
GSFNR TYPE STRING,
BELNR TYPE STRING,
CON_CURR TYPE STRING,
DUE_CONAMNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACSXC_DOCCD_P_D_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_CACSXC_DOCCD_P_D_STR-PAYEE_ISCD sy-vline 
WA_CACSXC_DOCCD_P_D_STR-BLTYP sy-vline 
WA_CACSXC_DOCCD_P_D_STR-CCODE sy-vline 
WA_CACSXC_DOCCD_P_D_STR-TAX_CODE sy-vline 
WA_CACSXC_DOCCD_P_D_STR-COSTCENTER sy-vline 
WA_CACSXC_DOCCD_P_D_STR-GPART sy-vline 
WA_CACSXC_DOCCD_P_D_STR-GPART_CTRT sy-vline 
WA_CACSXC_DOCCD_P_D_STR-PMNT_BLOCK sy-vline 
WA_CACSXC_DOCCD_P_D_STR-GROSS_AMT_MARK sy-vline 
WA_CACSXC_DOCCD_P_D_STR-PMTRF sy-vline 
WA_CACSXC_DOCCD_P_D_STR-PMTTO sy-vline 
WA_CACSXC_DOCCD_P_D_STR-GSBER sy-vline 
WA_CACSXC_DOCCD_P_D_STR-PRGRP sy-vline 
WA_CACSXC_DOCCD_P_D_STR-TVORG sy-vline 
WA_CACSXC_DOCCD_P_D_STR-HVORG sy-vline 
WA_CACSXC_DOCCD_P_D_STR-VTRE2 sy-vline 
WA_CACSXC_DOCCD_P_D_STR-VGPART2 sy-vline 
WA_CACSXC_DOCCD_P_D_STR-VTREF sy-vline 
WA_CACSXC_DOCCD_P_D_STR-GSFNR sy-vline 
WA_CACSXC_DOCCD_P_D_STR-BELNR sy-vline 
WA_CACSXC_DOCCD_P_D_STR-CON_CURR sy-vline 
WA_CACSXC_DOCCD_P_D_STR-DUE_CONAMNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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