ABAP Select data from SAP table CRMT_KW_S_DOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_KW_S_DOC
*  INTO TABLE @DATA(IT_CRMT_KW_S_DOC2).
*--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_CRMT_KW_S_DOC INDEX 1 INTO DATA(WA_CRMT_KW_S_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_KW_S_DOC>-DOC_KEY = 1.
<CRMT_KW_S_DOC>-URL = 1.
<CRMT_KW_S_DOC>-OBJ_TYPE = 1.
<CRMT_KW_S_DOC>-OI_AVAIL = 1.
<CRMT_KW_S_DOC>-MIMETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_KW_S_DOC-KW_RELATIVE_URL, sy-vline,
  WA_CRMT_KW_S_DOC-DESCRIPTION, sy-vline,
  WA_CRMT_KW_S_DOC-CREATED_BY, sy-vline,
  WA_CRMT_KW_S_DOC-CREATED_AT, sy-vline,
  WA_CRMT_KW_S_DOC-LAST_CHANGED_BY, sy-vline,
  WA_CRMT_KW_S_DOC-LAST_CHANGED_AT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_KW_S_DOC 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_CRMT_KW_S_DOC 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_CRMT_KW_S_DOC INTO WA_CRMT_KW_S_DOC.


*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 TSTLC, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_KW_S_DOC-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_KW_S_DOC-CREATED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field LAST_CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_KW_S_DOC-LAST_CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_KW_S_DOC-LAST_CHANGED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_KW_S_DOC-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_KW_S_DOC-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FILE_SIZE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_KW_S_DOC-FILE_SIZE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_KW_S_DOC-FILE_SIZE.
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_CRMT_KW_S_DOC_STR, 
DOC_KEY TYPE STRING,
URL TYPE STRING,
OBJ_TYPE TYPE STRING,
OI_AVAIL TYPE STRING,
MIMETYPE TYPE STRING,
KW_RELATIVE_URL TYPE STRING,
DESCRIPTION TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_AT TYPE STRING,
LAST_CHANGED_BY TYPE STRING,
LAST_CHANGED_AT TYPE STRING,
TYPE TYPE STRING,
LANGUAGE TYPE STRING,
BDS_DOCUMENTTYPE TYPE STRING,
BDS_KEYWORD TYPE STRING,
CRM_IS_DEFAULT TYPE STRING,
CRM_SEARCH_VISIBILITY TYPE STRING,
PROD_IS_LANG_INDEPDT TYPE STRING,
PCAT_IS_LANG_INDEPDT TYPE STRING,
CHECKED_OUT TYPE STRING,
CHECKOUT_USER TYPE STRING,
RESERVED TYPE STRING,
CONTENT_URL TYPE STRING,
FILENAME TYPE STRING,
FILE_SIZE TYPE STRING,
LOIO_CLASS TYPE STRING,
LOIO_OBJID TYPE STRING,
PHIO_CLASS TYPE STRING,
PHIO_OBJID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_KW_S_DOC_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_CRMT_KW_S_DOC_STR-DOC_KEY sy-vline 
WA_CRMT_KW_S_DOC_STR-URL sy-vline 
WA_CRMT_KW_S_DOC_STR-OBJ_TYPE sy-vline 
WA_CRMT_KW_S_DOC_STR-OI_AVAIL sy-vline 
WA_CRMT_KW_S_DOC_STR-MIMETYPE sy-vline 
WA_CRMT_KW_S_DOC_STR-KW_RELATIVE_URL sy-vline 
WA_CRMT_KW_S_DOC_STR-DESCRIPTION sy-vline 
WA_CRMT_KW_S_DOC_STR-CREATED_BY sy-vline 
WA_CRMT_KW_S_DOC_STR-CREATED_AT sy-vline 
WA_CRMT_KW_S_DOC_STR-LAST_CHANGED_BY sy-vline 
WA_CRMT_KW_S_DOC_STR-LAST_CHANGED_AT sy-vline 
WA_CRMT_KW_S_DOC_STR-TYPE sy-vline 
WA_CRMT_KW_S_DOC_STR-LANGUAGE sy-vline 
WA_CRMT_KW_S_DOC_STR-BDS_DOCUMENTTYPE sy-vline 
WA_CRMT_KW_S_DOC_STR-BDS_KEYWORD sy-vline 
WA_CRMT_KW_S_DOC_STR-CRM_IS_DEFAULT sy-vline 
WA_CRMT_KW_S_DOC_STR-CRM_SEARCH_VISIBILITY sy-vline 
WA_CRMT_KW_S_DOC_STR-PROD_IS_LANG_INDEPDT sy-vline 
WA_CRMT_KW_S_DOC_STR-PCAT_IS_LANG_INDEPDT sy-vline 
WA_CRMT_KW_S_DOC_STR-CHECKED_OUT sy-vline 
WA_CRMT_KW_S_DOC_STR-CHECKOUT_USER sy-vline 
WA_CRMT_KW_S_DOC_STR-RESERVED sy-vline 
WA_CRMT_KW_S_DOC_STR-CONTENT_URL sy-vline 
WA_CRMT_KW_S_DOC_STR-FILENAME sy-vline 
WA_CRMT_KW_S_DOC_STR-FILE_SIZE sy-vline 
WA_CRMT_KW_S_DOC_STR-LOIO_CLASS sy-vline 
WA_CRMT_KW_S_DOC_STR-LOIO_OBJID sy-vline 
WA_CRMT_KW_S_DOC_STR-PHIO_CLASS sy-vline 
WA_CRMT_KW_S_DOC_STR-PHIO_OBJID sy-vline      INTO ld_text SEPARATED BY SPACE.

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