ABAP Select data from SAP table CACS_S_DOCPROT 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_DOCPROT 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_DOCPROT. 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_DOCPROT 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_DOCPROT TYPE STANDARD TABLE OF CACS_S_DOCPROT,
      WA_CACS_S_DOCPROT TYPE CACS_S_DOCPROT,
      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_DOCPROT> TYPE CACS_S_DOCPROT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CACS_S_DOCPROT
*  INTO TABLE @DATA(IT_CACS_S_DOCPROT2).
*--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_DOCPROT INDEX 1 INTO DATA(WA_CACS_S_DOCPROT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CACS_S_DOCPROT>-MANDT = 1.
<CACS_S_DOCPROT>-POST_YEAR = 1.
<CACS_S_DOCPROT>-DOC_ID = 1.
<CACS_S_DOCPROT>-DOC_TYPE = 1.
<CACS_S_DOCPROT>-TRIGGER_SYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CACS_S_DOCPROT-EXT_RUN_ID, sy-vline,
  WA_CACS_S_DOCPROT-RUN_ID, sy-vline,
  WA_CACS_S_DOCPROT-BUSOBJ_TYPE, sy-vline,
  WA_CACS_S_DOCPROT-BUSOBJ_ID, sy-vline,
  WA_CACS_S_DOCPROT-BUSOBJ_VERS, sy-vline,
  WA_CACS_S_DOCPROT-REM_BUSCASE_TYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CACS_S_DOCPROT 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_DOCPROT 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_DOCPROT INTO WA_CACS_S_DOCPROT.


*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_CACS_S_DOCPROT-DOC_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS_S_DOCPROT-DOC_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit BOBJ0, internal->external for field BUSOBJ_TYPE
CALL FUNCTION 'CONVERSION_EXIT_BOBJ0_OUTPUT'
  EXPORTING
    input =                      WA_CACS_S_DOCPROT-BUSOBJ_TYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS_S_DOCPROT-BUSOBJ_TYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BOBJ1, internal->external for field BUSOBJ_ID
CALL FUNCTION 'CONVERSION_EXIT_BOBJ1_OUTPUT'
  EXPORTING
    input =                      WA_CACS_S_DOCPROT-BUSOBJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS_S_DOCPROT-BUSOBJ_ID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit TSTPS, internal->external for field CHG_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CACS_S_DOCPROT-CHG_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS_S_DOCPROT-CHG_TIMESTAMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field REV_TIMESTAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CACS_S_DOCPROT-REV_TIMESTAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CACS_S_DOCPROT-REV_TIMESTAMP.
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_DOCPROT_STR, 
MANDT TYPE STRING,
POST_YEAR TYPE STRING,
DOC_ID TYPE STRING,
DOC_TYPE TYPE STRING,
TRIGGER_SYS TYPE STRING,
EXT_RUN_ID TYPE STRING,
RUN_ID TYPE STRING,
BUSOBJ_TYPE TYPE STRING,
BUSOBJ_ID TYPE STRING,
BUSOBJ_VERS TYPE STRING,
REM_BUSCASE_TYP TYPE STRING,
REM_BUSCASE_ID TYPE STRING,
REM_BUSCASE_VERS TYPE STRING,
LED_CURR TYPE STRING,
PAY_REF_ID TYPE STRING,
REV_DOC_ID TYPE STRING,
REV_POST_YEAR TYPE STRING,
CHG_DATE TYPE STRING,
CHG_TIME TYPE STRING,
CHG_TIMESTAMP TYPE STRING,
CHG_TCODE TYPE STRING,
CHG_USR TYPE STRING,
TRI_METH_TYP TYPE STRING,
TRI_METH_TARGET TYPE STRING,
FLG_REVERSED TYPE STRING,
STATUS_POS TYPE STRING,
STATUS_WORK TYPE STRING,
REV_DATE TYPE STRING,
REV_TIME TYPE STRING,
REV_TIMESTAMP TYPE STRING,
REV_TCODE TYPE STRING,
REV_USR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CACS_S_DOCPROT_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_DOCPROT_STR-MANDT sy-vline 
WA_CACS_S_DOCPROT_STR-POST_YEAR sy-vline 
WA_CACS_S_DOCPROT_STR-DOC_ID sy-vline 
WA_CACS_S_DOCPROT_STR-DOC_TYPE sy-vline 
WA_CACS_S_DOCPROT_STR-TRIGGER_SYS sy-vline 
WA_CACS_S_DOCPROT_STR-EXT_RUN_ID sy-vline 
WA_CACS_S_DOCPROT_STR-RUN_ID sy-vline 
WA_CACS_S_DOCPROT_STR-BUSOBJ_TYPE sy-vline 
WA_CACS_S_DOCPROT_STR-BUSOBJ_ID sy-vline 
WA_CACS_S_DOCPROT_STR-BUSOBJ_VERS sy-vline 
WA_CACS_S_DOCPROT_STR-REM_BUSCASE_TYP sy-vline 
WA_CACS_S_DOCPROT_STR-REM_BUSCASE_ID sy-vline 
WA_CACS_S_DOCPROT_STR-REM_BUSCASE_VERS sy-vline 
WA_CACS_S_DOCPROT_STR-LED_CURR sy-vline 
WA_CACS_S_DOCPROT_STR-PAY_REF_ID sy-vline 
WA_CACS_S_DOCPROT_STR-REV_DOC_ID sy-vline 
WA_CACS_S_DOCPROT_STR-REV_POST_YEAR sy-vline 
WA_CACS_S_DOCPROT_STR-CHG_DATE sy-vline 
WA_CACS_S_DOCPROT_STR-CHG_TIME sy-vline 
WA_CACS_S_DOCPROT_STR-CHG_TIMESTAMP sy-vline 
WA_CACS_S_DOCPROT_STR-CHG_TCODE sy-vline 
WA_CACS_S_DOCPROT_STR-CHG_USR sy-vline 
WA_CACS_S_DOCPROT_STR-TRI_METH_TYP sy-vline 
WA_CACS_S_DOCPROT_STR-TRI_METH_TARGET sy-vline 
WA_CACS_S_DOCPROT_STR-FLG_REVERSED sy-vline 
WA_CACS_S_DOCPROT_STR-STATUS_POS sy-vline 
WA_CACS_S_DOCPROT_STR-STATUS_WORK sy-vline 
WA_CACS_S_DOCPROT_STR-REV_DATE sy-vline 
WA_CACS_S_DOCPROT_STR-REV_TIME sy-vline 
WA_CACS_S_DOCPROT_STR-REV_TIMESTAMP sy-vline 
WA_CACS_S_DOCPROT_STR-REV_TCODE sy-vline 
WA_CACS_S_DOCPROT_STR-REV_USR sy-vline      INTO ld_text SEPARATED BY SPACE.

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