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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_PWL_UI
*  INTO TABLE @DATA(IT_/SCWM/S_PWL_UI2).
*--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_PWL_UI INDEX 1 INTO DATA(WA_/SCWM/S_PWL_UI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_PWL_UI>-MANDT = 1.
</SCWM/S_PWL_UI>-LGNUM = 1.
</SCWM/S_PWL_UI>-WKLID = 1.
</SCWM/S_PWL_UI>-PROCS = 1.
</SCWM/S_PWL_UI>-PROCS_TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_PWL_UI-OBJTY, sy-vline,
  WA_/SCWM/S_PWL_UI-OBJTY_TXT, sy-vline,
  WA_/SCWM/S_PWL_UI-IPROC, sy-vline,
  WA_/SCWM/S_PWL_UI-IPROC_TXT, sy-vline,
  WA_/SCWM/S_PWL_UI-TANUM, sy-vline,
  WA_/SCWM/S_PWL_UI-GUID_HU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_PWL_UI 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_PWL_UI 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_PWL_UI INTO WA_/SCWM/S_PWL_UI.


*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_PWL_UI-TANUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-TANUM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field UNIT_T
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PWL_UI-UNIT_T
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-UNIT_T.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field UNIT_V
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PWL_UI-UNIT_V
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-UNIT_V.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_W
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PWL_UI-UNIT_W
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-UNIT_W.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PWL_UI-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT_D
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PWL_UI-UNIT_D
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-UNIT_D.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPH0, internal->external for field ITMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_PWL_UI-ITMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_PWL_UI-ITMNO.
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_PWL_UI_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
WKLID TYPE STRING,
PROCS TYPE STRING,
PROCS_TEXT TYPE STRING,
OBJTY TYPE STRING,
OBJTY_TXT TYPE STRING,
IPROC TYPE STRING,
IPROC_TXT TYPE STRING,
TANUM TYPE STRING,
GUID_HU TYPE STRING,
HUIDENT TYPE STRING,
WAVE TYPE STRING,
ROUTE TYPE STRING,
GI_DATE TYPE STRING,
GI_TIME TYPE STRING,
AAREA TYPE STRING,
PLDURA TYPE STRING,
UNIT_T TYPE STRING,
ENTITLED TYPE STRING,
ENTITLED_TEXT TYPE STRING,
WHO TYPE STRING,
VAS_ID TYPE STRING,
ACT_SEQ TYPE STRING,
INSPTYP TYPE STRING,
INSPTYP_TXT TYPE STRING,
INSPID TYPE STRING,
INSPNO TYPE STRING,
VOLUM TYPE STRING,
UNIT_V TYPE STRING,
WEIGHT TYPE STRING,
UNIT_W TYPE STRING,
CAPA TYPE STRING,
QUAN TYPE STRING,
UNIT TYPE STRING,
DISTANCE TYPE STRING,
DISTANCE_Z TYPE STRING,
UNIT_D TYPE STRING,
DISTANCE_TIME TYPE STRING,
PLS_DATE TYPE STRING,
PLS_TIME TYPE STRING,
PLC_DATE TYPE STRING,
PLC_TIME TYPE STRING,
DOCCAT TYPE STRING,
DOCNO TYPE STRING,
ITMNO TYPE STRING,
SPLIT_ID TYPE STRING,
LA_CODE TYPE STRING,
LA_CODE_TXT TYPE STRING,
LA_GRP TYPE STRING,
LA_GRP_TXT TYPE STRING,
EVAL_TYPE TYPE STRING,
EVAL_TYPE_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_PWL_UI_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_PWL_UI_STR-MANDT sy-vline 
WA_/SCWM/S_PWL_UI_STR-LGNUM sy-vline 
WA_/SCWM/S_PWL_UI_STR-WKLID sy-vline 
WA_/SCWM/S_PWL_UI_STR-PROCS sy-vline 
WA_/SCWM/S_PWL_UI_STR-PROCS_TEXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-OBJTY sy-vline 
WA_/SCWM/S_PWL_UI_STR-OBJTY_TXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-IPROC sy-vline 
WA_/SCWM/S_PWL_UI_STR-IPROC_TXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-TANUM sy-vline 
WA_/SCWM/S_PWL_UI_STR-GUID_HU sy-vline 
WA_/SCWM/S_PWL_UI_STR-HUIDENT sy-vline 
WA_/SCWM/S_PWL_UI_STR-WAVE sy-vline 
WA_/SCWM/S_PWL_UI_STR-ROUTE sy-vline 
WA_/SCWM/S_PWL_UI_STR-GI_DATE sy-vline 
WA_/SCWM/S_PWL_UI_STR-GI_TIME sy-vline 
WA_/SCWM/S_PWL_UI_STR-AAREA sy-vline 
WA_/SCWM/S_PWL_UI_STR-PLDURA sy-vline 
WA_/SCWM/S_PWL_UI_STR-UNIT_T sy-vline 
WA_/SCWM/S_PWL_UI_STR-ENTITLED sy-vline 
WA_/SCWM/S_PWL_UI_STR-ENTITLED_TEXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-WHO sy-vline 
WA_/SCWM/S_PWL_UI_STR-VAS_ID sy-vline 
WA_/SCWM/S_PWL_UI_STR-ACT_SEQ sy-vline 
WA_/SCWM/S_PWL_UI_STR-INSPTYP sy-vline 
WA_/SCWM/S_PWL_UI_STR-INSPTYP_TXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-INSPID sy-vline 
WA_/SCWM/S_PWL_UI_STR-INSPNO sy-vline 
WA_/SCWM/S_PWL_UI_STR-VOLUM sy-vline 
WA_/SCWM/S_PWL_UI_STR-UNIT_V sy-vline 
WA_/SCWM/S_PWL_UI_STR-WEIGHT sy-vline 
WA_/SCWM/S_PWL_UI_STR-UNIT_W sy-vline 
WA_/SCWM/S_PWL_UI_STR-CAPA sy-vline 
WA_/SCWM/S_PWL_UI_STR-QUAN sy-vline 
WA_/SCWM/S_PWL_UI_STR-UNIT sy-vline 
WA_/SCWM/S_PWL_UI_STR-DISTANCE sy-vline 
WA_/SCWM/S_PWL_UI_STR-DISTANCE_Z sy-vline 
WA_/SCWM/S_PWL_UI_STR-UNIT_D sy-vline 
WA_/SCWM/S_PWL_UI_STR-DISTANCE_TIME sy-vline 
WA_/SCWM/S_PWL_UI_STR-PLS_DATE sy-vline 
WA_/SCWM/S_PWL_UI_STR-PLS_TIME sy-vline 
WA_/SCWM/S_PWL_UI_STR-PLC_DATE sy-vline 
WA_/SCWM/S_PWL_UI_STR-PLC_TIME sy-vline 
WA_/SCWM/S_PWL_UI_STR-DOCCAT sy-vline 
WA_/SCWM/S_PWL_UI_STR-DOCNO sy-vline 
WA_/SCWM/S_PWL_UI_STR-ITMNO sy-vline 
WA_/SCWM/S_PWL_UI_STR-SPLIT_ID sy-vline 
WA_/SCWM/S_PWL_UI_STR-LA_CODE sy-vline 
WA_/SCWM/S_PWL_UI_STR-LA_CODE_TXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-LA_GRP sy-vline 
WA_/SCWM/S_PWL_UI_STR-LA_GRP_TXT sy-vline 
WA_/SCWM/S_PWL_UI_STR-EVAL_TYPE sy-vline 
WA_/SCWM/S_PWL_UI_STR-EVAL_TYPE_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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