ABAP Select data from SAP table CMM_S_IDX_WORK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMM_S_IDX_WORK
*  INTO TABLE @DATA(IT_CMM_S_IDX_WORK2).
*--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_CMM_S_IDX_WORK INDEX 1 INTO DATA(WA_CMM_S_IDX_WORK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMM_S_IDX_WORK>-MANDT = 1.
<CMM_S_IDX_WORK>-CONSUMER = 1.
<CMM_S_IDX_WORK>-OBJ_TYPE = 1.
<CMM_S_IDX_WORK>-OBJ_ID = 1.
<CMM_S_IDX_WORK>-OBJ_ITEM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMM_S_IDX_WORK-OBJ_DOC_CAT, sy-vline,
  WA_CMM_S_IDX_WORK-OBJ_DOC_TYPE, sy-vline,
  WA_CMM_S_IDX_WORK-OBJ_ITEM_HL, sy-vline,
  WA_CMM_S_IDX_WORK-BUKRS, sy-vline,
  WA_CMM_S_IDX_WORK-EKORG, sy-vline,
  WA_CMM_S_IDX_WORK-EKGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMM_S_IDX_WORK 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_CMM_S_IDX_WORK 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_CMM_S_IDX_WORK INTO WA_CMM_S_IDX_WORK.


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

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

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

*Conversion exit TSTMP, internal->external for field CRTSP
CALL FUNCTION 'CONVERSION_EXIT_TSTMP_OUTPUT'
  EXPORTING
    input =                      WA_CMM_S_IDX_WORK-CRTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMM_S_IDX_WORK-CRTSP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTMP, internal->external for field CHTSP
CALL FUNCTION 'CONVERSION_EXIT_TSTMP_OUTPUT'
  EXPORTING
    input =                      WA_CMM_S_IDX_WORK-CHTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMM_S_IDX_WORK-CHTSP.
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_CMM_S_IDX_WORK_STR, 
MANDT TYPE STRING,
CONSUMER TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_ID TYPE STRING,
OBJ_ITEM TYPE STRING,
OBJ_DOC_CAT TYPE STRING,
OBJ_DOC_TYPE TYPE STRING,
OBJ_ITEM_HL TYPE STRING,
BUKRS TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
LIFNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
KUNNR TYPE STRING,
RUN_FAILED TYPE STRING,
RUN_ID TYPE STRING,
EXPIRATION_DATE TYPE STRING,
VALIDITY_DATE TYPE STRING,
PRE_OBJ_TYPE TYPE STRING,
PRE_OBJ_ID TYPE STRING,
PRE_OBJ_ITEM TYPE STRING,
PRE_OBJ_DOC_TYPE TYPE STRING,
PRE_OBJ_DOC_CAT TYPE STRING,
START_OBJ_TYPE TYPE STRING,
START_OBJ_ID TYPE STRING,
START_OBJ_ITEM TYPE STRING,
START_OBJ_DOC_TYPE TYPE STRING,
START_OBJ_DOC_CAT TYPE STRING,
START_OBJ_EXT_ID TYPE STRING,
ERNAM TYPE STRING,
CRTSP TYPE STRING,
AENAM TYPE STRING,
CHTSP TYPE STRING,
KEY TYPE STRING,
DB_ACTION TYPE STRING,
PRE_DB_ACTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMM_S_IDX_WORK_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_CMM_S_IDX_WORK_STR-MANDT sy-vline 
WA_CMM_S_IDX_WORK_STR-CONSUMER sy-vline 
WA_CMM_S_IDX_WORK_STR-OBJ_TYPE sy-vline 
WA_CMM_S_IDX_WORK_STR-OBJ_ID sy-vline 
WA_CMM_S_IDX_WORK_STR-OBJ_ITEM sy-vline 
WA_CMM_S_IDX_WORK_STR-OBJ_DOC_CAT sy-vline 
WA_CMM_S_IDX_WORK_STR-OBJ_DOC_TYPE sy-vline 
WA_CMM_S_IDX_WORK_STR-OBJ_ITEM_HL sy-vline 
WA_CMM_S_IDX_WORK_STR-BUKRS sy-vline 
WA_CMM_S_IDX_WORK_STR-EKORG sy-vline 
WA_CMM_S_IDX_WORK_STR-EKGRP sy-vline 
WA_CMM_S_IDX_WORK_STR-LIFNR sy-vline 
WA_CMM_S_IDX_WORK_STR-VKORG sy-vline 
WA_CMM_S_IDX_WORK_STR-VTWEG sy-vline 
WA_CMM_S_IDX_WORK_STR-SPART sy-vline 
WA_CMM_S_IDX_WORK_STR-VKGRP sy-vline 
WA_CMM_S_IDX_WORK_STR-VKBUR sy-vline 
WA_CMM_S_IDX_WORK_STR-KUNNR sy-vline 
WA_CMM_S_IDX_WORK_STR-RUN_FAILED sy-vline 
WA_CMM_S_IDX_WORK_STR-RUN_ID sy-vline 
WA_CMM_S_IDX_WORK_STR-EXPIRATION_DATE sy-vline 
WA_CMM_S_IDX_WORK_STR-VALIDITY_DATE sy-vline 
WA_CMM_S_IDX_WORK_STR-PRE_OBJ_TYPE sy-vline 
WA_CMM_S_IDX_WORK_STR-PRE_OBJ_ID sy-vline 
WA_CMM_S_IDX_WORK_STR-PRE_OBJ_ITEM sy-vline 
WA_CMM_S_IDX_WORK_STR-PRE_OBJ_DOC_TYPE sy-vline 
WA_CMM_S_IDX_WORK_STR-PRE_OBJ_DOC_CAT sy-vline 
WA_CMM_S_IDX_WORK_STR-START_OBJ_TYPE sy-vline 
WA_CMM_S_IDX_WORK_STR-START_OBJ_ID sy-vline 
WA_CMM_S_IDX_WORK_STR-START_OBJ_ITEM sy-vline 
WA_CMM_S_IDX_WORK_STR-START_OBJ_DOC_TYPE sy-vline 
WA_CMM_S_IDX_WORK_STR-START_OBJ_DOC_CAT sy-vline 
WA_CMM_S_IDX_WORK_STR-START_OBJ_EXT_ID sy-vline 
WA_CMM_S_IDX_WORK_STR-ERNAM sy-vline 
WA_CMM_S_IDX_WORK_STR-CRTSP sy-vline 
WA_CMM_S_IDX_WORK_STR-AENAM sy-vline 
WA_CMM_S_IDX_WORK_STR-CHTSP sy-vline 
WA_CMM_S_IDX_WORK_STR-KEY sy-vline 
WA_CMM_S_IDX_WORK_STR-DB_ACTION sy-vline 
WA_CMM_S_IDX_WORK_STR-PRE_DB_ACTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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