ABAP Select data from SAP table ISDFS_POSITIONHEADERTP_D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISDFS_POSITIONHEADERTP_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 ISDFS_POSITIONHEADERTP_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 ISDFS_POSITIONHEADERTP_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_ISDFS_POSITIONHEADERTP_D TYPE STANDARD TABLE OF ISDFS_POSITIONHEADERTP_D,
      WA_ISDFS_POSITIONHEADERTP_D TYPE ISDFS_POSITIONHEADERTP_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: <ISDFS_POSITIONHEADERTP_D> TYPE ISDFS_POSITIONHEADERTP_D.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISDFS_POSITIONHEADERTP_D
*  INTO TABLE @DATA(IT_ISDFS_POSITIONHEADERTP_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_ISDFS_POSITIONHEADERTP_D INDEX 1 INTO DATA(WA_ISDFS_POSITIONHEADERTP_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISDFS_POSITIONHEADERTP_D>-DFSPOSITIONID = 1.
<ISDFS_POSITIONHEADERTP_D>-DFSPOSITIONUUID = 1.
<ISDFS_POSITIONHEADERTP_D>-DFSOBJECTSEQUENCENUMBER = 1.
<ISDFS_POSITIONHEADERTP_D>-DFSPOSITIONPLANVERSION = 1.
<ISDFS_POSITIONHEADERTP_D>-DFSPOSITIONOBJECTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONLASTCHGDDTETME, sy-vline,
  WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONCREATIONDATE, sy-vline,
  WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONCREATEDBYUSER, sy-vline,
  WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONLASTCHGDDATE, sy-vline,
  WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONLASTCHGDBYUSER, sy-vline,
  WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONLOGICALSYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISDFS_POSITIONHEADERTP_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_ISDFS_POSITIONHEADERTP_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_ISDFS_POSITIONHEADERTP_D INTO WA_ISDFS_POSITIONHEADERTP_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 DFSPOSITIONLOGICALSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONLOGICALSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISDFS_POSITIONHEADERTP_D-DFSPOSITIONLOGICALSYSTEM.
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_ISDFS_POSITIONHEADERTP_D_STR, 
DFSPOSITIONID TYPE STRING,
DFSPOSITIONUUID TYPE STRING,
DFSOBJECTSEQUENCENUMBER TYPE STRING,
DFSPOSITIONPLANVERSION TYPE STRING,
DFSPOSITIONOBJECTTYPE TYPE STRING,
DFSPOSITIONLASTCHGDDTETME TYPE STRING,
DFSPOSITIONCREATIONDATE TYPE STRING,
DFSPOSITIONCREATEDBYUSER TYPE STRING,
DFSPOSITIONLASTCHGDDATE TYPE STRING,
DFSPOSITIONLASTCHGDBYUSER TYPE STRING,
DFSPOSITIONLOGICALSYSTEM TYPE STRING,
DFSPOSITIONTYPE TYPE STRING,
DFSJOBIDFOREDIT TYPE STRING,
DFSPOSITIONNAMEFOREDIT TYPE STRING,
DFSPOSITIONSHORTNAMEFOREDIT TYPE STRING,
DFSPOSITIONVALDTYSTARTDATEFOED TYPE STRING,
DFSPOSITIONVALDTYENDDATEFOED TYPE STRING,
DFSPOSITIONPLNGSTATUSFOREDIT TYPE STRING,
COUNTRYCODEFOREDIT TYPE STRING,
DFSPOSITIONORGAREAFOREDIT TYPE STRING,
DFSPOSITIONISCHIEFPOSITION TYPE STRING,
DFSPOSITIONISDEPUTYPOS TYPE STRING,
DFSPOSITIONSTRUCFRCELMNTORGID TYPE STRING,
DFSPOSWARTMEFRCELMNTORGID TYPE STRING,
DFSPOSPEACETMEFRCELMNTORGID TYPE STRING,
DFSPOSITIONSTRUCVALDTYSTRTDTE TYPE STRING,
DFSPOSPEACETMEVALDTYSTRTDTE TYPE STRING,
DFSPOSWARTMEVALDTYSTRTDTE TYPE STRING,
DFSPOSITIONSTRUCVALDTYENDDTE TYPE STRING,
DFSPOSPEACETMEVALDTYENDDTE TYPE STRING,
DFSPOSWARTMEVALDTYENDDTE TYPE STRING,
DFSPOSEMPLOYEETYPEFOREDIT TYPE STRING,
DFSPOSHIRINGPRIORITYFOREDIT TYPE STRING,
FORCEELEMENTORGIDFOREDIT TYPE STRING,
DFSPOSITIONBLOCKEDREASON TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISDFS_POSITIONHEADERTP_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_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONID sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONUUID sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSOBJECTSEQUENCENUMBER sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONPLANVERSION sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONOBJECTTYPE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONLASTCHGDDTETME sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONCREATIONDATE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONCREATEDBYUSER sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONLASTCHGDDATE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONLASTCHGDBYUSER sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONLOGICALSYSTEM sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONTYPE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSJOBIDFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONNAMEFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONSHORTNAMEFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONVALDTYSTARTDATEFOED sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONVALDTYENDDATEFOED sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONPLNGSTATUSFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-COUNTRYCODEFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONORGAREAFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONISCHIEFPOSITION sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONISDEPUTYPOS sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONSTRUCFRCELMNTORGID sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSWARTMEFRCELMNTORGID sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSPEACETMEFRCELMNTORGID sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONSTRUCVALDTYSTRTDTE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSPEACETMEVALDTYSTRTDTE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSWARTMEVALDTYSTRTDTE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONSTRUCVALDTYENDDTE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSPEACETMEVALDTYENDDTE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSWARTMEVALDTYENDDTE sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSEMPLOYEETYPEFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSHIRINGPRIORITYFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-FORCEELEMENTORGIDFOREDIT sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DFSPOSITIONBLOCKEDREASON sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-HASACTIVEENTITY sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISDFS_POSITIONHEADERTP_D_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISDFS_POSITIONHEADERTP_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.