ABAP Select data from SAP table CRMT_CT_INBOX_WF_DETAIL_ATTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_CT_INBOX_WF_DETAIL_ATTR 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_CT_INBOX_WF_DETAIL_ATTR. 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_CT_INBOX_WF_DETAIL_ATTR 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_CT_INBOX_WF_DETAIL_ATTR TYPE STANDARD TABLE OF CRMT_CT_INBOX_WF_DETAIL_ATTR,
      WA_CRMT_CT_INBOX_WF_DETAIL_ATTR TYPE CRMT_CT_INBOX_WF_DETAIL_ATTR,
      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_CT_INBOX_WF_DETAIL_ATTR> TYPE CRMT_CT_INBOX_WF_DETAIL_ATTR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_CT_INBOX_WF_DETAIL_ATTR
*  INTO TABLE @DATA(IT_CRMT_CT_INBOX_WF_DETAIL_ATTR2).
*--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_CT_INBOX_WF_DETAIL_ATTR INDEX 1 INTO DATA(WA_CRMT_CT_INBOX_WF_DETAIL_ATTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_CT_INBOX_WF_DETAIL_ATTR>-WI_ID = 1.
<CRMT_CT_INBOX_WF_DETAIL_ATTR>-WI_LOGSYS = 1.
<CRMT_CT_INBOX_WF_DETAIL_ATTR>-GUID = 1.
<CRMT_CT_INBOX_WF_DETAIL_ATTR>-WI_DH_STAT = 1.
<CRMT_CT_INBOX_WF_DETAIL_ATTR>-WIZ_DH_STATTEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_CR_TIMEIO, sy-vline,
  WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_DSD, sy-vline,
  WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_DST, sy-vline,
  WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_DSD_FTD, sy-vline,
  WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_DST_FTD, sy-vline,
  WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_DS_TIMEIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_CT_INBOX_WF_DETAIL_ATTR 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_CT_INBOX_WF_DETAIL_ATTR 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_CT_INBOX_WF_DETAIL_ATTR INTO WA_CRMT_CT_INBOX_WF_DETAIL_ATTR.


*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 WI_LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_CT_INBOX_WF_DETAIL_ATTR-WI_LOGSYS.
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_CT_INBOX_WF_DETAIL_ATTR_STR, 
WI_ID TYPE STRING,
WI_LOGSYS TYPE STRING,
GUID TYPE STRING,
WI_DH_STAT TYPE STRING,
WIZ_DH_STATTEXT TYPE STRING,
WI_CR_TIMEIO TYPE STRING,
WI_DSD TYPE STRING,
WI_DST TYPE STRING,
WI_DSD_FTD TYPE STRING,
WI_DST_FTD TYPE STRING,
WI_DS_TIMEIO TYPE STRING,
WI_LSD TYPE STRING,
WI_LST TYPE STRING,
WI_LSD_FTD TYPE STRING,
WI_LST_FTD TYPE STRING,
WI_LS_TIMEIO TYPE STRING,
WI_DED TYPE STRING,
WI_DET TYPE STRING,
WI_DED_FTD TYPE STRING,
WI_DET_FTD TYPE STRING,
WI_DE_TIMEIO TYPE STRING,
WI_LE_TIMEIO TYPE STRING,
WI_CHCKWI TYPE STRING,
TOP_WI_ID TYPE STRING,
NOTE_COUNT TYPE STRING,
EXEC_TIME TYPE STRING,
WI_AED TYPE STRING,
WI_AET TYPE STRING,
WI_AED_FTD TYPE STRING,
WI_AET_FTD TYPE STRING,
WI_AE_TIMEIO TYPE STRING,
WI_RESULT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_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_CT_INBOX_WF_DETAIL_ATTR_STR-WI_ID sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LOGSYS sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-GUID sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DH_STAT sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WIZ_DH_STATTEXT sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_CR_TIMEIO sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DSD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DST sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DSD_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DST_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DS_TIMEIO sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LSD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LST sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LSD_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LST_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LS_TIMEIO sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DED sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DET sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DED_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DET_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_DE_TIMEIO sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_LE_TIMEIO sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_CHCKWI sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-TOP_WI_ID sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-NOTE_COUNT sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-EXEC_TIME sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_AED sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_AET sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_AED_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_AET_FTD sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_AE_TIMEIO sy-vline 
WA_CRMT_CT_INBOX_WF_DETAIL_ATTR_STR-WI_RESULT sy-vline      INTO ld_text SEPARATED BY SPACE.

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