ABAP Select data from SAP table /SAPAPO/PPC_IO_COMP_DELTA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/PPC_IO_COMP_DELTA 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 /SAPAPO/PPC_IO_COMP_DELTA. 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 /SAPAPO/PPC_IO_COMP_DELTA 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_/SAPAPO/PPC_IO_COMP_DELTA TYPE STANDARD TABLE OF /SAPAPO/PPC_IO_COMP_DELTA,
      WA_/SAPAPO/PPC_IO_COMP_DELTA TYPE /SAPAPO/PPC_IO_COMP_DELTA,
      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: </SAPAPO/PPC_IO_COMP_DELTA> TYPE /SAPAPO/PPC_IO_COMP_DELTA.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/PPC_IO_COMP_DELTA
  INTO TABLE IT_/SAPAPO/PPC_IO_COMP_DELTA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/PPC_IO_COMP_DELTA
*  INTO TABLE @DATA(IT_/SAPAPO/PPC_IO_COMP_DELTA2).
*--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_/SAPAPO/PPC_IO_COMP_DELTA INDEX 1 INTO DATA(WA_/SAPAPO/PPC_IO_COMP_DELTA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/PPC_IO_COMP_DELTA ASSIGNING </SAPAPO/PPC_IO_COMP_DELTA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/PPC_IO_COMP_DELTA>-ERR_STATUS = 1.
</SAPAPO/PPC_IO_COMP_DELTA>-GM_INDEX = 1.
</SAPAPO/PPC_IO_COMP_DELTA>-ORDID = 1.
</SAPAPO/PPC_IO_COMP_DELTA>-CONFID = 1.
</SAPAPO/PPC_IO_COMP_DELTA>-ACTID = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/PPC_IO_COMP_DELTA INTO WA_/SAPAPO/PPC_IO_COMP_DELTA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/PPC_IO_COMP_DELTA-PEGID, sy-vline,
  WA_/SAPAPO/PPC_IO_COMP_DELTA-RPTID, sy-vline,
  WA_/SAPAPO/PPC_IO_COMP_DELTA-MATNR, sy-vline,
  WA_/SAPAPO/PPC_IO_COMP_DELTA-MAKTX, sy-vline,
  WA_/SAPAPO/PPC_IO_COMP_DELTA-LOCNO, sy-vline,
  WA_/SAPAPO/PPC_IO_COMP_DELTA-ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/PPC_IO_COMP_DELTA 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_/SAPAPO/PPC_IO_COMP_DELTA 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_/SAPAPO/PPC_IO_COMP_DELTA INTO WA_/SAPAPO/PPC_IO_COMP_DELTA.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PPC_IO_COMP_DELTA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PPC_IO_COMP_DELTA-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PPC_IO_COMP_DELTA-CUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PPC_IO_COMP_DELTA-CUNIT.
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_/SAPAPO/PPC_IO_COMP_DELTA_STR, 
ERR_STATUS TYPE STRING,
GM_INDEX TYPE STRING,
ORDID TYPE STRING,
CONFID TYPE STRING,
ACTID TYPE STRING,
PEGID TYPE STRING,
RPTID TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
LOCNO TYPE STRING,
ID TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
D TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
LGORT TYPE STRING,
PRVBE TYPE STRING,
BATCH TYPE STRING,
GMOVE_IND TYPE STRING,
SYNC_IND TYPE STRING,
SOBKZ TYPE STRING,
SSKEY TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
CQUAN TYPE STRING,
CUNIT TYPE STRING,
BDTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/PPC_IO_COMP_DELTA_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_/SAPAPO/PPC_IO_COMP_DELTA_STR-ERR_STATUS sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-GM_INDEX sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-ORDID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-CONFID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-ACTID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-PEGID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-RPTID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MATNR sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MAKTX sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-LOCNO sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-ID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGNO sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGTY sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGV1 sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGV2 sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGV3 sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MSGV4 sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-D sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-MATID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-LOCID sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-LGORT sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-PRVBE sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-BATCH sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-GMOVE_IND sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-SYNC_IND sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-SOBKZ sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-SSKEY sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-LIFNR sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-KUNNR sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-CQUAN sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-CUNIT sy-vline 
WA_/SAPAPO/PPC_IO_COMP_DELTA_STR-BDTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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