ABAP Select data from SAP table /SCWM/S_DSAPP_ROOT_COMMON into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/S_DSAPP_ROOT_COMMON 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 /SCWM/S_DSAPP_ROOT_COMMON. 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 /SCWM/S_DSAPP_ROOT_COMMON 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_/SCWM/S_DSAPP_ROOT_COMMON TYPE STANDARD TABLE OF /SCWM/S_DSAPP_ROOT_COMMON,
      WA_/SCWM/S_DSAPP_ROOT_COMMON TYPE /SCWM/S_DSAPP_ROOT_COMMON,
      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: </SCWM/S_DSAPP_ROOT_COMMON> TYPE /SCWM/S_DSAPP_ROOT_COMMON.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCWM/S_DSAPP_ROOT_COMMON
  INTO TABLE IT_/SCWM/S_DSAPP_ROOT_COMMON.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_DSAPP_ROOT_COMMON
*  INTO TABLE @DATA(IT_/SCWM/S_DSAPP_ROOT_COMMON2).
*--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_/SCWM/S_DSAPP_ROOT_COMMON INDEX 1 INTO DATA(WA_/SCWM/S_DSAPP_ROOT_COMMON2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCWM/S_DSAPP_ROOT_COMMON ASSIGNING </SCWM/S_DSAPP_ROOT_COMMON>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_DSAPP_ROOT_COMMON>-LOADPOINT = 1.
</SCWM/S_DSAPP_ROOT_COMMON>-START_TIME = 1.
</SCWM/S_DSAPP_ROOT_COMMON>-FINISH_TIME = 1.
</SCWM/S_DSAPP_ROOT_COMMON>-SLOT_ROOT_KEY = 1.
</SCWM/S_DSAPP_ROOT_COMMON>-DOCNO = 1.

ENDLOOP.

LOOP AT IT_/SCWM/S_DSAPP_ROOT_COMMON INTO WA_/SCWM/S_DSAPP_ROOT_COMMON.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_DSAPP_ROOT_COMMON-CARRIER, sy-vline,
  WA_/SCWM/S_DSAPP_ROOT_COMMON-SCAC_CARR, sy-vline,
  WA_/SCWM/S_DSAPP_ROOT_COMMON-TRANSMEANSID, sy-vline,
  WA_/SCWM/S_DSAPP_ROOT_COMMON-MTR, sy-vline,
  WA_/SCWM/S_DSAPP_ROOT_COMMON-MOTSCODE, sy-vline,
  WA_/SCWM/S_DSAPP_ROOT_COMMON-DRIVER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_DSAPP_ROOT_COMMON 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_/SCWM/S_DSAPP_ROOT_COMMON 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_/SCWM/S_DSAPP_ROOT_COMMON INTO WA_/SCWM/S_DSAPP_ROOT_COMMON.


*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 DSTST, internal->external for field START_TIME
CALL FUNCTION 'CONVERSION_EXIT_DSTST_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DSAPP_ROOT_COMMON-START_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DSAPP_ROOT_COMMON-START_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DSTST, internal->external for field FINISH_TIME
CALL FUNCTION 'CONVERSION_EXIT_DSTST_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DSAPP_ROOT_COMMON-FINISH_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DSAPP_ROOT_COMMON-FINISH_TIME.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit DSREQ, internal->external for field APP_LENGTH
CALL FUNCTION 'CONVERSION_EXIT_DSREQ_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DSAPP_ROOT_COMMON-APP_LENGTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DSAPP_ROOT_COMMON-APP_LENGTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DSTST, internal->external for field REQ_START_TIME
CALL FUNCTION 'CONVERSION_EXIT_DSTST_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DSAPP_ROOT_COMMON-REQ_START_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DSAPP_ROOT_COMMON-REQ_START_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DSTST, internal->external for field REQ_FINISH_TIME
CALL FUNCTION 'CONVERSION_EXIT_DSTST_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DSAPP_ROOT_COMMON-REQ_FINISH_TIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DSAPP_ROOT_COMMON-REQ_FINISH_TIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DSREQ, internal->external for field REQ_LENGTH
CALL FUNCTION 'CONVERSION_EXIT_DSREQ_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_DSAPP_ROOT_COMMON-REQ_LENGTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_DSAPP_ROOT_COMMON-REQ_LENGTH.
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_/SCWM/S_DSAPP_ROOT_COMMON_STR, 
LOADPOINT TYPE STRING,
START_TIME TYPE STRING,
FINISH_TIME TYPE STRING,
SLOT_ROOT_KEY TYPE STRING,
DOCNO TYPE STRING,
CARRIER TYPE STRING,
SCAC_CARR TYPE STRING,
TRANSMEANSID TYPE STRING,
MTR TYPE STRING,
MOTSCODE TYPE STRING,
DRIVER TYPE STRING,
CAPALLOC TYPE STRING,
CARRCREAIND TYPE STRING,
APP_LENGTH TYPE STRING,
REQ_START_TIME TYPE STRING,
REQ_FINISH_TIME TYPE STRING,
REQ_LENGTH TYPE STRING,
PROCSTATUS TYPE STRING,
LP_PARENT TYPE STRING,
NUMBER_PACKAGES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_DSAPP_ROOT_COMMON_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_/SCWM/S_DSAPP_ROOT_COMMON_STR-LOADPOINT sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-START_TIME sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-FINISH_TIME sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-SLOT_ROOT_KEY sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-DOCNO sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-CARRIER sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-SCAC_CARR sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-TRANSMEANSID sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-MTR sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-MOTSCODE sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-DRIVER sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-CAPALLOC sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-CARRCREAIND sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-APP_LENGTH sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-REQ_START_TIME sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-REQ_FINISH_TIME sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-REQ_LENGTH sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-PROCSTATUS sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-LP_PARENT sy-vline 
WA_/SCWM/S_DSAPP_ROOT_COMMON_STR-NUMBER_PACKAGES sy-vline      INTO ld_text SEPARATED BY SPACE.

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