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

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/TWF_WHR
*  INTO TABLE @DATA(IT_/SCWM/TWF_WHR2).
*--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/TWF_WHR INDEX 1 INTO DATA(WA_/SCWM/TWF_WHR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/TWF_WHR>-MANDT = 1.
</SCWM/TWF_WHR>-GUID = 1.
</SCWM/TWF_WHR>-START_DATE = 1.
</SCWM/TWF_WHR>-START_TIME = 1.
</SCWM/TWF_WHR>-CREUSER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/TWF_WHR-WF_STARTED, sy-vline,
  WA_/SCWM/TWF_WHR-WF_ENDED, sy-vline,
  WA_/SCWM/TWF_WHR-DOCID, sy-vline,
  WA_/SCWM/TWF_WHR-ITEMID, sy-vline,
  WA_/SCWM/TWF_WHR-ITEMNO, sy-vline,
  WA_/SCWM/TWF_WHR-ITEMCAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/TWF_WHR 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/TWF_WHR 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/TWF_WHR INTO WA_/SCWM/TWF_WHR.


*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 ITEMNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-ITEMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-ITEMNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CRETST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-CRETST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-CRETST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field CHGTST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-CHGTST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-CHGTST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field PRODUCTNO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-PRODUCTNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-PRODUCTNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SCDL1, internal->external for field PRODUCTENT
CALL FUNCTION 'CONVERSION_EXIT_SCDL1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-PRODUCTENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-PRODUCTENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BPMAP, internal->external for field STOCK_OWNER
CALL FUNCTION 'CONVERSION_EXIT_BPMAP_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-STOCK_OWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-STOCK_OWNER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPH0, internal->external for field WAVE_ITM
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/TWF_WHR-WAVE_ITM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/TWF_WHR-WAVE_ITM.
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/TWF_WHR_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
START_DATE TYPE STRING,
START_TIME TYPE STRING,
CREUSER TYPE STRING,
WF_STARTED TYPE STRING,
WF_ENDED TYPE STRING,
DOCID TYPE STRING,
ITEMID TYPE STRING,
ITEMNO TYPE STRING,
ITEMCAT TYPE STRING,
ITEMTYPE TYPE STRING,
OBJECTSTATE TYPE STRING,
OBJCHG TYPE STRING,
DOCNO TYPE STRING,
DOCCAT TYPE STRING,
CRETST TYPE STRING,
CREUSR TYPE STRING,
CHGTST TYPE STRING,
CHGUSR TYPE STRING,
PRODUCTID TYPE STRING,
PRODUCTNO TYPE STRING,
PRODUCT_TEXT TYPE STRING,
BSKEY TYPE STRING,
BATCHNO TYPE STRING,
PRODUCTENT TYPE STRING,
TOL_UNDERPCT TYPE STRING,
TOL_OVERPCT TYPE STRING,
TOL_OVERUNLTD TYPE STRING,
PART_DEL_NUM TYPE STRING,
PART_DEL_UNLTD TYPE STRING,
PRIORITY TYPE STRING,
SERVICE_LEVEL TYPE STRING,
STOCK_USAGE TYPE STRING,
STOCK_CATEGORY TYPE STRING,
STOCK_OWNER TYPE STRING,
STOCK_OWNER_ROLE TYPE STRING,
ENTITLED TYPE STRING,
ENTITLED_ROLE TYPE STRING,
STOCK_DOCCAT TYPE STRING,
STOCK_DOCNO TYPE STRING,
STOCK_ITMNO TYPE STRING,
BATCHID TYPE STRING,
OCOUNTRY TYPE STRING,
QTY_OPENUNPACKED TYPE STRING,
UOM_OPENUNPACKED TYPE STRING,
/SCWM/WHNO TYPE STRING,
/SCWM/DOOR TYPE STRING,
/SCWM/PROCTY TYPE STRING,
/SCWM/MOVECNTRL TYPE STRING,
/SCWM/STAGAREA TYPE STRING,
/SCWM/STAGAREAGR TYPE STRING,
/SCWM/STAGARBIN TYPE STRING,
/SCWM/REPLSTR TYPE STRING,
/SCWM/SPLIT TYPE STRING,
/SCWM/STOTYPE TYPE STRING,
/SCWM/STOSEC TYPE STRING,
/SCWM/STOBIN TYPE STRING,
/SCWM/STOBINTYPE TYPE STRING,
/SCWM/AAREA TYPE STRING,
/SCWM/GMBIN TYPE STRING,
/SCWM/WAVEFLG TYPE STRING,
/SCWM/DGIND TYPE STRING,
EXCCODE TYPE STRING,
HUIDENT_NEW TYPE STRING,
HUIDENT_ERP TYPE STRING,
WAVE TYPE STRING,
WAVE_ITM TYPE STRING,
EXC_BUSCON TYPE STRING,
EXC_TYPEID TYPE STRING,
EXEMODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/TWF_WHR_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/TWF_WHR_STR-MANDT sy-vline 
WA_/SCWM/TWF_WHR_STR-GUID sy-vline 
WA_/SCWM/TWF_WHR_STR-START_DATE sy-vline 
WA_/SCWM/TWF_WHR_STR-START_TIME sy-vline 
WA_/SCWM/TWF_WHR_STR-CREUSER sy-vline 
WA_/SCWM/TWF_WHR_STR-WF_STARTED sy-vline 
WA_/SCWM/TWF_WHR_STR-WF_ENDED sy-vline 
WA_/SCWM/TWF_WHR_STR-DOCID sy-vline 
WA_/SCWM/TWF_WHR_STR-ITEMID sy-vline 
WA_/SCWM/TWF_WHR_STR-ITEMNO sy-vline 
WA_/SCWM/TWF_WHR_STR-ITEMCAT sy-vline 
WA_/SCWM/TWF_WHR_STR-ITEMTYPE sy-vline 
WA_/SCWM/TWF_WHR_STR-OBJECTSTATE sy-vline 
WA_/SCWM/TWF_WHR_STR-OBJCHG sy-vline 
WA_/SCWM/TWF_WHR_STR-DOCNO sy-vline 
WA_/SCWM/TWF_WHR_STR-DOCCAT sy-vline 
WA_/SCWM/TWF_WHR_STR-CRETST sy-vline 
WA_/SCWM/TWF_WHR_STR-CREUSR sy-vline 
WA_/SCWM/TWF_WHR_STR-CHGTST sy-vline 
WA_/SCWM/TWF_WHR_STR-CHGUSR sy-vline 
WA_/SCWM/TWF_WHR_STR-PRODUCTID sy-vline 
WA_/SCWM/TWF_WHR_STR-PRODUCTNO sy-vline 
WA_/SCWM/TWF_WHR_STR-PRODUCT_TEXT sy-vline 
WA_/SCWM/TWF_WHR_STR-BSKEY sy-vline 
WA_/SCWM/TWF_WHR_STR-BATCHNO sy-vline 
WA_/SCWM/TWF_WHR_STR-PRODUCTENT sy-vline 
WA_/SCWM/TWF_WHR_STR-TOL_UNDERPCT sy-vline 
WA_/SCWM/TWF_WHR_STR-TOL_OVERPCT sy-vline 
WA_/SCWM/TWF_WHR_STR-TOL_OVERUNLTD sy-vline 
WA_/SCWM/TWF_WHR_STR-PART_DEL_NUM sy-vline 
WA_/SCWM/TWF_WHR_STR-PART_DEL_UNLTD sy-vline 
WA_/SCWM/TWF_WHR_STR-PRIORITY sy-vline 
WA_/SCWM/TWF_WHR_STR-SERVICE_LEVEL sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_USAGE sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_CATEGORY sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_OWNER sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_OWNER_ROLE sy-vline 
WA_/SCWM/TWF_WHR_STR-ENTITLED sy-vline 
WA_/SCWM/TWF_WHR_STR-ENTITLED_ROLE sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_DOCCAT sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_DOCNO sy-vline 
WA_/SCWM/TWF_WHR_STR-STOCK_ITMNO sy-vline 
WA_/SCWM/TWF_WHR_STR-BATCHID sy-vline 
WA_/SCWM/TWF_WHR_STR-OCOUNTRY sy-vline 
WA_/SCWM/TWF_WHR_STR-QTY_OPENUNPACKED sy-vline 
WA_/SCWM/TWF_WHR_STR-UOM_OPENUNPACKED sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/WHNO sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/DOOR sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/PROCTY sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/MOVECNTRL sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STAGAREA sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STAGAREAGR sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STAGARBIN sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/REPLSTR sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/SPLIT sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STOTYPE sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STOSEC sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STOBIN sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/STOBINTYPE sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/AAREA sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/GMBIN sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/WAVEFLG sy-vline 
WA_/SCWM/TWF_WHR_STR-/SCWM/DGIND sy-vline 
WA_/SCWM/TWF_WHR_STR-EXCCODE sy-vline 
WA_/SCWM/TWF_WHR_STR-HUIDENT_NEW sy-vline 
WA_/SCWM/TWF_WHR_STR-HUIDENT_ERP sy-vline 
WA_/SCWM/TWF_WHR_STR-WAVE sy-vline 
WA_/SCWM/TWF_WHR_STR-WAVE_ITM sy-vline 
WA_/SCWM/TWF_WHR_STR-EXC_BUSCON sy-vline 
WA_/SCWM/TWF_WHR_STR-EXC_TYPEID sy-vline 
WA_/SCWM/TWF_WHR_STR-EXEMODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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