ABAP Select data from SAP table ISDEMANDNOMINATIONSCHEDULETP_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISDEMANDNOMINATIONSCHEDULETP_D
*  INTO TABLE @DATA(IT_ISDEMANDNOMINATIONSCHEDULETP_D2).
*--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_ISDEMANDNOMINATIONSCHEDULETP_D INDEX 1 INTO DATA(WA_ISDEMANDNOMINATIONSCHEDULETP_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISDEMANDNOMINATIONSCHEDULETP_D>-NOMINATIONDOC = 1.
<ISDEMANDNOMINATIONSCHEDULETP_D>-NOMINATIONDOCITEM = 1.
<ISDEMANDNOMINATIONSCHEDULETP_D>-LOCATIONID = 1.
<ISDEMANDNOMINATIONSCHEDULETP_D>-SCHEDULEDMATERIAL = 1.
<ISDEMANDNOMINATIONSCHEDULETP_D>-NOMINATIONSCHEDULEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISDEMANDNOMINATIONSCHEDULETP_D-SCHEDULEDQUANTITY, sy-vline,
  WA_ISDEMANDNOMINATIONSCHEDULETP_D-SCHEDULEDQUANTITYUNIT, sy-vline,
  WA_ISDEMANDNOMINATIONSCHEDULETP_D-TRANSPORTSYSTEM, sy-vline,
  WA_ISDEMANDNOMINATIONSCHEDULETP_D-TRANSPORTATIONVEHICLE, sy-vline,
  WA_ISDEMANDNOMINATIONSCHEDULETP_D-NOMINATIONSCHEDULETYPE, sy-vline,
  WA_ISDEMANDNOMINATIONSCHEDULETP_D-NOMINATIONREFERENCEDOCTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISDEMANDNOMINATIONSCHEDULETP_D 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_ISDEMANDNOMINATIONSCHEDULETP_D 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_ISDEMANDNOMINATIONSCHEDULETP_D INTO WA_ISDEMANDNOMINATIONSCHEDULETP_D.


*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 NOMINATIONDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISDEMANDNOMINATIONSCHEDULETP_D-NOMINATIONDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDEMANDNOMINATIONSCHEDULETP_D-NOMINATIONDOC.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field NOMINATIONSIMLNID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISDEMANDNOMINATIONSCHEDULETP_D-NOMINATIONSIMLNID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDEMANDNOMINATIONSCHEDULETP_D-NOMINATIONSIMLNID.
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_ISDEMANDNOMINATIONSCHEDULETP_D_STR, 
NOMINATIONDOC TYPE STRING,
NOMINATIONDOCITEM TYPE STRING,
LOCATIONID TYPE STRING,
SCHEDULEDMATERIAL TYPE STRING,
NOMINATIONSCHEDULEDATE TYPE STRING,
SCHEDULEDQUANTITY TYPE STRING,
SCHEDULEDQUANTITYUNIT TYPE STRING,
TRANSPORTSYSTEM TYPE STRING,
TRANSPORTATIONVEHICLE TYPE STRING,
NOMINATIONSCHEDULETYPE TYPE STRING,
NOMINATIONREFERENCEDOCTYPE TYPE STRING,
NOMINATIONREFERENCEDOCUMENT TYPE STRING,
NOMINATIONREFERENCEDOCITEM TYPE STRING,
NOMINATIONEXTNUMBER TYPE STRING,
MODEOFTRANSPORT TYPE STRING,
DEMANDNOMINATIONSCHEDSRCETYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
NOMINATIONSCHEDULECREATIONDATE TYPE STRING,
NOMINATIONSIMLNID TYPE STRING,
NOMINATIONSIMLNLINEITM TYPE STRING,
NOMINATIONSIMLNVERSION TYPE STRING,
NOMINATIONDOCISBLOCKED TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
DUMMY_DNOM_SCHED_INCL_EEW_PS TYPE STRING,
DUMMY_NOMHDR_INCL_EEW_PS TYPE STRING,
DUMMY_NOMITM_INCL_EEW_PS TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISDEMANDNOMINATIONSCHEDULETP_D_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_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONDOC sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONDOCITEM sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-LOCATIONID sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-SCHEDULEDMATERIAL sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONSCHEDULEDATE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-SCHEDULEDQUANTITY sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-SCHEDULEDQUANTITYUNIT sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-TRANSPORTSYSTEM sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-TRANSPORTATIONVEHICLE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONSCHEDULETYPE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONREFERENCEDOCTYPE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONREFERENCEDOCUMENT sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONREFERENCEDOCITEM sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONEXTNUMBER sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-MODEOFTRANSPORT sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DEMANDNOMINATIONSCHEDSRCETYPE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-CREATEDBYUSER sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONSCHEDULECREATIONDATE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONSIMLNID sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONSIMLNLINEITM sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONSIMLNVERSION sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-NOMINATIONDOCISBLOCKED sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-HASACTIVEENTITY sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DUMMY_DNOM_SCHED_INCL_EEW_PS sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DUMMY_NOMHDR_INCL_EEW_PS sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-DUMMY_NOMITM_INCL_EEW_PS sy-vline 
WA_ISDEMANDNOMINATIONSCHEDULETP_D_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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