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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/PUIA_PD_INVPOS_STR
*  INTO TABLE @DATA(IT_/SAPAPO/PUIA_PD_INVPOS_STR2).
*--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/PUIA_PD_INVPOS_STR INDEX 1 INTO DATA(WA_/SAPAPO/PUIA_PD_INVPOS_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/PUIA_PD_INVPOS_STR>-CLEVNO = 1.
</SAPAPO/PUIA_PD_INVPOS_STR>-ENTRYPOINT = 1.
</SAPAPO/PUIA_PD_INVPOS_STR>-LEVEL001 = 1.
</SAPAPO/PUIA_PD_INVPOS_STR>-LEVEL002 = 1.
</SAPAPO/PUIA_PD_INVPOS_STR>-LEVEL003 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/PUIA_PD_INVPOS_STR-LEVEL004, sy-vline,
  WA_/SAPAPO/PUIA_PD_INVPOS_STR-LOCDESCR40, sy-vline,
  WA_/SAPAPO/PUIA_PD_INVPOS_STR-CPACKAGER, sy-vline,
  WA_/SAPAPO/PUIA_PD_INVPOS_STR-INITSTOCKQUAN, sy-vline,
  WA_/SAPAPO/PUIA_PD_INVPOS_STR-INVONHAND, sy-vline,
  WA_/SAPAPO/PUIA_PD_INVPOS_STR-INVONTRANSPORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/PUIA_PD_INVPOS_STR 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/PUIA_PD_INVPOS_STR 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/PUIA_PD_INVPOS_STR INTO WA_/SAPAPO/PUIA_PD_INVPOS_STR.


*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 CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PUIA_PD_INVPOS_STR-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PUIA_PD_INVPOS_STR-UNIT.
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/PUIA_PD_INVPOS_STR_STR, 
CLEVNO TYPE STRING,
ENTRYPOINT TYPE STRING,
LEVEL001 TYPE STRING,
LEVEL002 TYPE STRING,
LEVEL003 TYPE STRING,
LEVEL004 TYPE STRING,
LOCDESCR40 TYPE STRING,
CPACKAGER TYPE STRING,
INITSTOCKQUAN TYPE STRING,
INVONHAND TYPE STRING,
INVONTRANSPORT TYPE STRING,
INVTRANSITNS TYPE STRING,
INVINYARD TYPE STRING,
INVUNRESTRPUT TYPE STRING,
INVQUALPUT TYPE STRING,
INVBLOCKEDPUT TYPE STRING,
AFSUNRESTRQUAN TYPE STRING,
AFSQUALQUAN TYPE STRING,
AFSBLOCKEDQUAN TYPE STRING,
CPINVONTRANSPORT TYPE STRING,
CPINVTRANSITNS TYPE STRING,
CPINVINYARD TYPE STRING,
CPINVUNRESTRPUT TYPE STRING,
CPINVQUALPUT TYPE STRING,
CPINVBLOCKEDPUT TYPE STRING,
CPAFSUNRESTRQUAN TYPE STRING,
CPAFSQUALQUAN TYPE STRING,
CPAFSBLOCKEDQUAN TYPE STRING,
INVCOMTRANSORD TYPE STRING,
TOTALPASTDUE TYPE STRING,
TOTALFIRMSCH TYPE STRING,
TOTALPASTDUEPO TYPE STRING,
TOTALFIRMPO TYPE STRING,
UNIT TYPE STRING,
TOTAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/PUIA_PD_INVPOS_STR_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/PUIA_PD_INVPOS_STR_STR-CLEVNO sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-ENTRYPOINT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-LEVEL001 sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-LEVEL002 sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-LEVEL003 sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-LEVEL004 sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-LOCDESCR40 sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPACKAGER sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INITSTOCKQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVONHAND sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVONTRANSPORT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVTRANSITNS sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVINYARD sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVUNRESTRPUT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVQUALPUT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVBLOCKEDPUT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-AFSUNRESTRQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-AFSQUALQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-AFSBLOCKEDQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPINVONTRANSPORT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPINVTRANSITNS sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPINVINYARD sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPINVUNRESTRPUT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPINVQUALPUT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPINVBLOCKEDPUT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPAFSUNRESTRQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPAFSQUALQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-CPAFSBLOCKEDQUAN sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-INVCOMTRANSORD sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-TOTALPASTDUE sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-TOTALFIRMSCH sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-TOTALPASTDUEPO sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-TOTALFIRMPO sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-UNIT sy-vline 
WA_/SAPAPO/PUIA_PD_INVPOS_STR_STR-TOTAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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