ABAP Select data from SAP table IDFSALLWNCPLANB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDFSALLWNCPLANB
*  INTO TABLE @DATA(IT_IDFSALLWNCPLANB2).
*--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_IDFSALLWNCPLANB INDEX 1 INTO DATA(WA_IDFSALLWNCPLANB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDFSALLWNCPLANB>-MANDT = 1.
<IDFSALLWNCPLANB>-DFSALLWNCPLANUUID = 1.
<IDFSALLWNCPLANB>-DFSALLWNCPLANID = 1.
<IDFSALLWNCPLANB>-DFSALLWNCPLANDESCRIPTION = 1.
<IDFSALLWNCPLANB>-DFSALLWNCPLANVALDTYSTRTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDFSALLWNCPLANB-DFSALLWNCPLANVALDTYENDDATE, sy-vline,
  WA_IDFSALLWNCPLANB-FLXBLMATLPLNGOBJECTUUID, sy-vline,
  WA_IDFSALLWNCPLANB-FLXBLMATLPLNGOBJECTID, sy-vline,
  WA_IDFSALLWNCPLANB-FLXBLMATLPLNGOBJVARIANTUUID, sy-vline,
  WA_IDFSALLWNCPLANB-FLXBLMATLPLNGOBJVARIANTID, sy-vline,
  WA_IDFSALLWNCPLANB-PRODUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDFSALLWNCPLANB 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_IDFSALLWNCPLANB 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_IDFSALLWNCPLANB INTO WA_IDFSALLWNCPLANB.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IDFSALLWNCPLANB-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSALLWNCPLANB-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DFSALLWNCPLANQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDFSALLWNCPLANB-DFSALLWNCPLANQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDFSALLWNCPLANB-DFSALLWNCPLANQUANTITYUNIT.
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_IDFSALLWNCPLANB_STR, 
MANDT TYPE STRING,
DFSALLWNCPLANUUID TYPE STRING,
DFSALLWNCPLANID TYPE STRING,
DFSALLWNCPLANDESCRIPTION TYPE STRING,
DFSALLWNCPLANVALDTYSTRTDATE TYPE STRING,
DFSALLWNCPLANVALDTYENDDATE TYPE STRING,
FLXBLMATLPLNGOBJECTUUID TYPE STRING,
FLXBLMATLPLNGOBJECTID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTUUID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTID TYPE STRING,
PRODUCT TYPE STRING,
DFSALLWNCPLANBASETYPE TYPE STRING,
DFSALLWNCPLANALLOWEDQUANTITY TYPE STRING,
DFSALLWNCPLANQUANTITYUNIT TYPE STRING,
FRCELMNTORGUSAGETYPE TYPE STRING,
DFSALLWNCPLANMULTILEVEL TYPE STRING,
DFSALLWNCPLANISCOMPLETED TYPE STRING,
DFSALLWNCPLANPREVIOUSPLANUUID TYPE STRING,
DFSALLWNCPLANCOMMENT TYPE STRING,
FORCEELEMENTORGUUID TYPE STRING,
FORCEELEMENTORGID TYPE STRING,
DFSALLWNCPLANSTATUSOBJECT TYPE STRING,
DFSALLWNCPLANSTATUSCODE TYPE STRING,
DFSALLWNCPLANSTATUSPROFILE TYPE STRING,
DFSALLWNCREQUUID TYPE STRING,
DFSALLWNCPLANCREATIONDATETIME TYPE STRING,
DFSALLWNCPLANCREATEDBYUSER TYPE STRING,
DFSALLWNCPLANCHANGEDATETIME TYPE STRING,
DFSALLWNCPLANLASTCHGDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDFSALLWNCPLANB_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_IDFSALLWNCPLANB_STR-MANDT sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANUUID sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANID sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANDESCRIPTION sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANVALDTYSTRTDATE sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANVALDTYENDDATE sy-vline 
WA_IDFSALLWNCPLANB_STR-FLXBLMATLPLNGOBJECTUUID sy-vline 
WA_IDFSALLWNCPLANB_STR-FLXBLMATLPLNGOBJECTID sy-vline 
WA_IDFSALLWNCPLANB_STR-FLXBLMATLPLNGOBJVARIANTUUID sy-vline 
WA_IDFSALLWNCPLANB_STR-FLXBLMATLPLNGOBJVARIANTID sy-vline 
WA_IDFSALLWNCPLANB_STR-PRODUCT sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANBASETYPE sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANALLOWEDQUANTITY sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANQUANTITYUNIT sy-vline 
WA_IDFSALLWNCPLANB_STR-FRCELMNTORGUSAGETYPE sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANMULTILEVEL sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANISCOMPLETED sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANPREVIOUSPLANUUID sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANCOMMENT sy-vline 
WA_IDFSALLWNCPLANB_STR-FORCEELEMENTORGUUID sy-vline 
WA_IDFSALLWNCPLANB_STR-FORCEELEMENTORGID sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANSTATUSOBJECT sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANSTATUSCODE sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANSTATUSPROFILE sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCREQUUID sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANCREATIONDATETIME sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANCREATEDBYUSER sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANCHANGEDATETIME sy-vline 
WA_IDFSALLWNCPLANB_STR-DFSALLWNCPLANLASTCHGDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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