ABAP Select data from SAP table CACS00_S_DOCVAM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CACS00_S_DOCVAM 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 CACS00_S_DOCVAM. 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 CACS00_S_DOCVAM 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_CACS00_S_DOCVAM TYPE STANDARD TABLE OF CACS00_S_DOCVAM,
      WA_CACS00_S_DOCVAM TYPE CACS00_S_DOCVAM,
      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: <CACS00_S_DOCVAM> TYPE CACS00_S_DOCVAM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CACS00_S_DOCVAM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CACS00_S_DOCVAM
  INTO TABLE IT_CACS00_S_DOCVAM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACS00_S_DOCVAM
*  INTO TABLE @DATA(IT_CACS00_S_DOCVAM2).
*--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_CACS00_S_DOCVAM INDEX 1 INTO DATA(WA_CACS00_S_DOCVAM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CACS00_S_DOCVAM ASSIGNING <CACS00_S_DOCVAM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACS00_S_DOCVAM>-MANDT = 1.
<CACS00_S_DOCVAM>-POST_YEAR = 1.
<CACS00_S_DOCVAM>-DOC_ID = 1.
<CACS00_S_DOCVAM>-VALUE_POS = 1.
<CACS00_S_DOCVAM>-FLG_REVERSED = 1.

ENDLOOP.

LOOP AT IT_CACS00_S_DOCVAM INTO WA_CACS00_S_DOCVAM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACS00_S_DOCVAM-STATUS_POS, sy-vline,
  WA_CACS00_S_DOCVAM-STATUS_WORK, sy-vline,
  WA_CACS00_S_DOCVAM-POST_MONTH, sy-vline,
  WA_CACS00_S_DOCVAM-REM_IMP_YEAR, sy-vline,
  WA_CACS00_S_DOCVAM-REM_CASE_ID, sy-vline,
  WA_CACS00_S_DOCVAM-REM_CASE_VERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACS00_S_DOCVAM 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_CACS00_S_DOCVAM 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_CACS00_S_DOCVAM INTO WA_CACS00_S_DOCVAM.


*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 DOC_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-DOC_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VALUE_POS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-VALUE_POS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-VALUE_POS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REM_CASE_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-REM_CASE_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-REM_CASE_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRI_OBJ_TYPE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-TRI_OBJ_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-TRI_OBJ_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRI_OBJ_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-TRI_OBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-TRI_OBJ_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VALUE_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-VALUE_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-VALUE_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRI_OBJ_ID_EXT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-TRI_OBJ_ID_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-TRI_OBJ_ID_EXT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DDTYB, internal->external for field VALBASE_TYPE
CALL FUNCTION 'CONVERSION_EXIT_DDTYB_OUTPUT'
  EXPORTING
    input =                      WA_CACS00_S_DOCVAM-VALBASE_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS00_S_DOCVAM-VALBASE_TYPE.
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_CACS00_S_DOCVAM_STR, 
MANDT TYPE STRING,
POST_YEAR TYPE STRING,
DOC_ID TYPE STRING,
VALUE_POS TYPE STRING,
FLG_REVERSED TYPE STRING,
STATUS_POS TYPE STRING,
STATUS_WORK TYPE STRING,
POST_MONTH TYPE STRING,
REM_IMP_YEAR TYPE STRING,
REM_CASE_ID TYPE STRING,
REM_CASE_VERS TYPE STRING,
TRI_OBJ_TYPE TYPE STRING,
TRI_OBJ_ID TYPE STRING,
VALUE TYPE STRING,
VALUE_VERSION TYPE STRING,
VALUE_QUAN TYPE STRING,
DVALUE_QUAN TYPE STRING,
VALUE_UNIT TYPE STRING,
VALUE_AMNT TYPE STRING,
DVALUE_AMNT TYPE STRING,
LED_CURR TYPE STRING,
STATUS_VAL TYPE STRING,
VALUE_AMNT_RUPT TYPE STRING,
VALUE_QUAN_RUPT TYPE STRING,
TRI_OBJ_ID_EXT TYPE STRING,
TRI_OBJ_CHGTYP TYPE STRING,
VALBASE_TYPE TYPE STRING,
VALBASE_AMNT TYPE STRING,
VALUE_TYPE TYPE STRING,
VALUE_METH_RUPT TYPE STRING,
ROBJTYPE TYPE STRING,
ROBJID TYPE STRING,
LOG_SERVICE TYPE STRING,
SERVICETOOL TYPE STRING,
SERVICE_ID TYPE STRING,
SERVICE_PARAM1 TYPE STRING,
SERVICE_PARAM2 TYPE STRING,
SERVICE_PARAM3 TYPE STRING,
SERVICE_PARAM4 TYPE STRING,
SERVICE_PARAM5 TYPE STRING,
CACSDUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACS00_S_DOCVAM_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_CACS00_S_DOCVAM_STR-MANDT sy-vline 
WA_CACS00_S_DOCVAM_STR-POST_YEAR sy-vline 
WA_CACS00_S_DOCVAM_STR-DOC_ID sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_POS sy-vline 
WA_CACS00_S_DOCVAM_STR-FLG_REVERSED sy-vline 
WA_CACS00_S_DOCVAM_STR-STATUS_POS sy-vline 
WA_CACS00_S_DOCVAM_STR-STATUS_WORK sy-vline 
WA_CACS00_S_DOCVAM_STR-POST_MONTH sy-vline 
WA_CACS00_S_DOCVAM_STR-REM_IMP_YEAR sy-vline 
WA_CACS00_S_DOCVAM_STR-REM_CASE_ID sy-vline 
WA_CACS00_S_DOCVAM_STR-REM_CASE_VERS sy-vline 
WA_CACS00_S_DOCVAM_STR-TRI_OBJ_TYPE sy-vline 
WA_CACS00_S_DOCVAM_STR-TRI_OBJ_ID sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_VERSION sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_QUAN sy-vline 
WA_CACS00_S_DOCVAM_STR-DVALUE_QUAN sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_UNIT sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_AMNT sy-vline 
WA_CACS00_S_DOCVAM_STR-DVALUE_AMNT sy-vline 
WA_CACS00_S_DOCVAM_STR-LED_CURR sy-vline 
WA_CACS00_S_DOCVAM_STR-STATUS_VAL sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_AMNT_RUPT sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_QUAN_RUPT sy-vline 
WA_CACS00_S_DOCVAM_STR-TRI_OBJ_ID_EXT sy-vline 
WA_CACS00_S_DOCVAM_STR-TRI_OBJ_CHGTYP sy-vline 
WA_CACS00_S_DOCVAM_STR-VALBASE_TYPE sy-vline 
WA_CACS00_S_DOCVAM_STR-VALBASE_AMNT sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_TYPE sy-vline 
WA_CACS00_S_DOCVAM_STR-VALUE_METH_RUPT sy-vline 
WA_CACS00_S_DOCVAM_STR-ROBJTYPE sy-vline 
WA_CACS00_S_DOCVAM_STR-ROBJID sy-vline 
WA_CACS00_S_DOCVAM_STR-LOG_SERVICE sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICETOOL sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICE_ID sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICE_PARAM1 sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICE_PARAM2 sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICE_PARAM3 sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICE_PARAM4 sy-vline 
WA_CACS00_S_DOCVAM_STR-SERVICE_PARAM5 sy-vline 
WA_CACS00_S_DOCVAM_STR-CACSDUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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