ABAP Select data from SAP table BAPI_PPE_INSTCHNGSTATE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_PPE_INSTCHNGSTATE
*  INTO TABLE @DATA(IT_BAPI_PPE_INSTCHNGSTATE2).
*--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_BAPI_PPE_INSTCHNGSTATE INDEX 1 INTO DATA(WA_BAPI_PPE_INSTCHNGSTATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_PPE_INSTCHNGSTATE>-INSTGUID = 1.
<BAPI_PPE_INSTCHNGSTATE>-CHANGE_NO = 1.
<BAPI_PPE_INSTCHNGSTATE>-DELETE_FLG = 1.
<BAPI_PPE_INSTCHNGSTATE>-DELETE_NONHIST_FLG = 1.
<BAPI_PPE_INSTCHNGSTATE>-KNOBJ = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_PPE_INSTCHNGSTATE-XMIN, sy-vline,
  WA_BAPI_PPE_INSTCHNGSTATE-YMIN, sy-vline,
  WA_BAPI_PPE_INSTCHNGSTATE-ZMIN, sy-vline,
  WA_BAPI_PPE_INSTCHNGSTATE-XMAX, sy-vline,
  WA_BAPI_PPE_INSTCHNGSTATE-YMAX, sy-vline,
  WA_BAPI_PPE_INSTCHNGSTATE-ZMAX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_PPE_INSTCHNGSTATE 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_BAPI_PPE_INSTCHNGSTATE 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_BAPI_PPE_INSTCHNGSTATE INTO WA_BAPI_PPE_INSTCHNGSTATE.


*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 CHANGE_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BAPI_PPE_INSTCHNGSTATE-CHANGE_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BAPI_PPE_INSTCHNGSTATE-CHANGE_NO.
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_BAPI_PPE_INSTCHNGSTATE_STR, 
INSTGUID TYPE STRING,
CHANGE_NO TYPE STRING,
DELETE_FLG TYPE STRING,
DELETE_NONHIST_FLG TYPE STRING,
KNOBJ TYPE STRING,
XMIN TYPE STRING,
YMIN TYPE STRING,
ZMIN TYPE STRING,
XMAX TYPE STRING,
YMAX TYPE STRING,
ZMAX TYPE STRING,
LOCOX TYPE STRING,
LOCOY TYPE STRING,
LOCOZ TYPE STRING,
AXIS1X TYPE STRING,
AXIS1Y TYPE STRING,
AXIS1Z TYPE STRING,
AXIS2X TYPE STRING,
AXIS2Y TYPE STRING,
AXIS2Z TYPE STRING,
AXIS3X TYPE STRING,
AXIS3Y TYPE STRING,
AXIS3Z TYPE STRING,
SCALE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_PPE_INSTCHNGSTATE_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_BAPI_PPE_INSTCHNGSTATE_STR-INSTGUID sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-CHANGE_NO sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-DELETE_FLG sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-DELETE_NONHIST_FLG sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-KNOBJ sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-XMIN sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-YMIN sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-ZMIN sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-XMAX sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-YMAX sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-ZMAX sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-LOCOX sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-LOCOY sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-LOCOZ sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS1X sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS1Y sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS1Z sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS2X sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS2Y sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS2Z sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS3X sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS3Y sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-AXIS3Z sy-vline 
WA_BAPI_PPE_INSTCHNGSTATE_STR-SCALE sy-vline      INTO ld_text SEPARATED BY SPACE.

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