ABAP Select data from SAP table /SCWM/S_RF_DDLD_ATT 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_RF_DDLD_ATT 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_RF_DDLD_ATT. 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_RF_DDLD_ATT 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_RF_DDLD_ATT TYPE STANDARD TABLE OF /SCWM/S_RF_DDLD_ATT,
      WA_/SCWM/S_RF_DDLD_ATT TYPE /SCWM/S_RF_DDLD_ATT,
      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_RF_DDLD_ATT> TYPE /SCWM/S_RF_DDLD_ATT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_RF_DDLD_ATT
*  INTO TABLE @DATA(IT_/SCWM/S_RF_DDLD_ATT2).
*--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_RF_DDLD_ATT INDEX 1 INTO DATA(WA_/SCWM/S_RF_DDLD_ATT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_RF_DDLD_ATT>-TANUM = 1.
</SCWM/S_RF_DDLD_ATT>-WHO = 1.
</SCWM/S_RF_DDLD_ATT>-HUIDENT = 1.
</SCWM/S_RF_DDLD_ATT>-DPOS_DD = 1.
</SCWM/S_RF_DDLD_ATT>-DPOS_DD_VERIF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_RF_DDLD_ATT-HAZMAT, sy-vline,
  WA_/SCWM/S_RF_DDLD_ATT-HAZMAT_IND, sy-vline,
  WA_/SCWM/S_RF_DDLD_ATT-VLENR, sy-vline,
  WA_/SCWM/S_RF_DDLD_ATT-VLENR_VERIF, sy-vline,
  WA_/SCWM/S_RF_DDLD_ATT-VLENR_POS, sy-vline,
  WA_/SCWM/S_RF_DDLD_ATT-VLTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_RF_DDLD_ATT 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_RF_DDLD_ATT 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_RF_DDLD_ATT INTO WA_/SCWM/S_RF_DDLD_ATT.


*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 ALPH0, internal->external for field TANUM
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-TANUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-TANUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field WHO
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-WHO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-WHO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-HUIDENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field VLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-VLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-VLENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field NLENR
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-NLENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-NLENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit HUID, internal->external for field NLENR_ORIG
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-NLENR_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-NLENR_ORIG.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTWH, internal->external for field TA_CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_DDLD_ATT-TA_CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_DDLD_ATT-TA_CREATED_AT.
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_RF_DDLD_ATT_STR, 
TANUM TYPE STRING,
WHO TYPE STRING,
HUIDENT TYPE STRING,
DPOS_DD TYPE STRING,
DPOS_DD_VERIF TYPE STRING,
HAZMAT TYPE STRING,
HAZMAT_IND TYPE STRING,
VLENR TYPE STRING,
VLENR_VERIF TYPE STRING,
VLENR_POS TYPE STRING,
VLTYP TYPE STRING,
VLBER TYPE STRING,
VLPLA TYPE STRING,
VLPLA_VERIF TYPE STRING,
SRSRC TYPE STRING,
DRSRC TYPE STRING,
SRSRC_TYPE TYPE STRING,
SRSRC_DESCR TYPE STRING,
NLENR TYPE STRING,
NLENR_VERIF TYPE STRING,
NLENR_ORIG TYPE STRING,
NLPLA TYPE STRING,
NLPLA_VERIF TYPE STRING,
NLPLA_ORIG TYPE STRING,
NLTYP TYPE STRING,
NLBER TYPE STRING,
ACT_TYPE TYPE STRING,
AAREA TYPE STRING,
PROCTY TYPE STRING,
TRART TYPE STRING,
QUEUE TYPE STRING,
SEQNO TYPE STRING,
WHOSEQ TYPE STRING,
TOSTAT TYPE STRING,
PSA TYPE STRING,
DPOS_WT TYPE STRING,
DPOS_WT_VERIF TYPE STRING,
TA_CREATED_AT TYPE STRING,
EXC_TAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_RF_DDLD_ATT_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_RF_DDLD_ATT_STR-TANUM sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-WHO sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-HUIDENT sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-DPOS_DD sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-DPOS_DD_VERIF sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-HAZMAT sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-HAZMAT_IND sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLENR sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLENR_VERIF sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLENR_POS sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLTYP sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLBER sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLPLA sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-VLPLA_VERIF sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-SRSRC sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-DRSRC sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-SRSRC_TYPE sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-SRSRC_DESCR sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLENR sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLENR_VERIF sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLENR_ORIG sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLPLA sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLPLA_VERIF sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLPLA_ORIG sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLTYP sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-NLBER sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-ACT_TYPE sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-AAREA sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-PROCTY sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-TRART sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-QUEUE sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-SEQNO sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-WHOSEQ sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-TOSTAT sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-PSA sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-DPOS_WT sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-DPOS_WT_VERIF sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-TA_CREATED_AT sy-vline 
WA_/SCWM/S_RF_DDLD_ATT_STR-EXC_TAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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