ABAP Select data from SAP table PPDS_EVENT_DRAFT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPDS_EVENT_DRAFT
*  INTO TABLE @DATA(IT_PPDS_EVENT_DRAFT2).
*--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_PPDS_EVENT_DRAFT INDEX 1 INTO DATA(WA_PPDS_EVENT_DRAFT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPDS_EVENT_DRAFT>-MANDT = 1.
<PPDS_EVENT_DRAFT>-SIMVERSION = 1.
<PPDS_EVENT_DRAFT>-SIMSESSION = 1.
<PPDS_EVENT_DRAFT>-GUID = 1.
<PPDS_EVENT_DRAFT>-TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPDS_EVENT_DRAFT-METHOD, sy-vline,
  WA_PPDS_EVENT_DRAFT-R3OBJ, sy-vline,
  WA_PPDS_EVENT_DRAFT-ORDNO, sy-vline,
  WA_PPDS_EVENT_DRAFT-POSNO, sy-vline,
  WA_PPDS_EVENT_DRAFT-SCHEDNO, sy-vline,
  WA_PPDS_EVENT_DRAFT-MATID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPDS_EVENT_DRAFT 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_PPDS_EVENT_DRAFT 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_PPDS_EVENT_DRAFT INTO WA_PPDS_EVENT_DRAFT.


*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 VRSIO, internal->external for field SIMVERSION
CALL FUNCTION 'CONVERSION_EXIT_VRSIO_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_EVENT_DRAFT-SIMVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_EVENT_DRAFT-SIMVERSION.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTPS, internal->external for field CREATEDATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PPDS_EVENT_DRAFT-CREATEDATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPDS_EVENT_DRAFT-CREATEDATE.
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_PPDS_EVENT_DRAFT_STR, 
MANDT TYPE STRING,
SIMVERSION TYPE STRING,
SIMSESSION TYPE STRING,
GUID TYPE STRING,
TYPE TYPE STRING,
METHOD TYPE STRING,
R3OBJ TYPE STRING,
ORDNO TYPE STRING,
POSNO TYPE STRING,
SCHEDNO TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
LOCFRID TYPE STRING,
PROCESS_ID TYPE STRING,
LOCNO TYPE STRING,
LOCTYPE TYPE STRING,
LOCFRNO TYPE STRING,
LOCFRTYPE TYPE STRING,
PLANNER TYPE STRING,
UPDCNTR TYPE STRING,
TRPID TYPE STRING,
SCHEDID TYPE STRING,
EXPLODENEW TYPE STRING,
ORDER_START TYPE STRING,
POSGUID TYPE STRING,
GROUPNO TYPE STRING,
GROUPID TYPE STRING,
UNAME TYPE STRING,
CREATEDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPDS_EVENT_DRAFT_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_PPDS_EVENT_DRAFT_STR-MANDT sy-vline 
WA_PPDS_EVENT_DRAFT_STR-SIMVERSION sy-vline 
WA_PPDS_EVENT_DRAFT_STR-SIMSESSION sy-vline 
WA_PPDS_EVENT_DRAFT_STR-GUID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-TYPE sy-vline 
WA_PPDS_EVENT_DRAFT_STR-METHOD sy-vline 
WA_PPDS_EVENT_DRAFT_STR-R3OBJ sy-vline 
WA_PPDS_EVENT_DRAFT_STR-ORDNO sy-vline 
WA_PPDS_EVENT_DRAFT_STR-POSNO sy-vline 
WA_PPDS_EVENT_DRAFT_STR-SCHEDNO sy-vline 
WA_PPDS_EVENT_DRAFT_STR-MATID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-LOCID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-LOCFRID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-PROCESS_ID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-LOCNO sy-vline 
WA_PPDS_EVENT_DRAFT_STR-LOCTYPE sy-vline 
WA_PPDS_EVENT_DRAFT_STR-LOCFRNO sy-vline 
WA_PPDS_EVENT_DRAFT_STR-LOCFRTYPE sy-vline 
WA_PPDS_EVENT_DRAFT_STR-PLANNER sy-vline 
WA_PPDS_EVENT_DRAFT_STR-UPDCNTR sy-vline 
WA_PPDS_EVENT_DRAFT_STR-TRPID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-SCHEDID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-EXPLODENEW sy-vline 
WA_PPDS_EVENT_DRAFT_STR-ORDER_START sy-vline 
WA_PPDS_EVENT_DRAFT_STR-POSGUID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-GROUPNO sy-vline 
WA_PPDS_EVENT_DRAFT_STR-GROUPID sy-vline 
WA_PPDS_EVENT_DRAFT_STR-UNAME sy-vline 
WA_PPDS_EVENT_DRAFT_STR-CREATEDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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