ABAP Select data from SAP table CRMT_CM_S_DOC_INFO into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_CM_S_DOC_INFO 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_CM_S_DOC_INFO. 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_CM_S_DOC_INFO 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_CM_S_DOC_INFO TYPE STANDARD TABLE OF CRMT_CM_S_DOC_INFO,
      WA_CRMT_CM_S_DOC_INFO TYPE CRMT_CM_S_DOC_INFO,
      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_CM_S_DOC_INFO> TYPE CRMT_CM_S_DOC_INFO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_CM_S_DOC_INFO
*  INTO TABLE @DATA(IT_CRMT_CM_S_DOC_INFO2).
*--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_CM_S_DOC_INFO INDEX 1 INTO DATA(WA_CRMT_CM_S_DOC_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_CM_S_DOC_INFO>-INSTIDBO = 1.
<CRMT_CM_S_DOC_INFO>-TYPEIDBO = 1.
<CRMT_CM_S_DOC_INFO>-CATIDBO = 1.
<CRMT_CM_S_DOC_INFO>-LOIO = 1.
<CRMT_CM_S_DOC_INFO>-OBJTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_CM_S_DOC_INFO-CLASS, sy-vline,
  WA_CRMT_CM_S_DOC_INFO-OBJID, sy-vline,
  WA_CRMT_CM_S_DOC_INFO-PHIO, sy-vline,
  WA_CRMT_CM_S_DOC_INFO-OBJTYPE, sy-vline,
  WA_CRMT_CM_S_DOC_INFO-CLASS, sy-vline,
  WA_CRMT_CM_S_DOC_INFO-OBJID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_CM_S_DOC_INFO 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_CM_S_DOC_INFO 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_CM_S_DOC_INFO INTO WA_CRMT_CM_S_DOC_INFO.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CRMT_CM_S_DOC_INFO_STR, 
INSTIDBO TYPE STRING,
TYPEIDBO TYPE STRING,
CATIDBO TYPE STRING,
LOIO TYPE STRING,
OBJTYPE TYPE STRING,
CLASS TYPE STRING,
OBJID TYPE STRING,
PHIO TYPE STRING,
OBJTYPE TYPE STRING,
CLASS TYPE STRING,
OBJID TYPE STRING,
LINKED TYPE STRING,
OBJTYPE TYPE STRING,
SINGLE_VERSION TYPE STRING,
AL_OBJECT TYPE STRING,
AL_DOC_ID TYPE STRING,
AL_ARCHIV_ID TYPE STRING,
SEND_REQUEST TYPE STRING,
TEMPL_PROFILE TYPE STRING,
EXT_DOC_KEY TYPE STRING,
PLM_DOC_KEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_CM_S_DOC_INFO_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_CM_S_DOC_INFO_STR-INSTIDBO sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-TYPEIDBO sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-CATIDBO sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-LOIO sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-OBJTYPE sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-CLASS sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-OBJID sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-PHIO sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-OBJTYPE sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-CLASS sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-OBJID sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-LINKED sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-OBJTYPE sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-SINGLE_VERSION sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-AL_OBJECT sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-AL_DOC_ID sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-AL_ARCHIV_ID sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-SEND_REQUEST sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-TEMPL_PROFILE sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-EXT_DOC_KEY sy-vline 
WA_CRMT_CM_S_DOC_INFO_STR-PLM_DOC_KEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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