ABAP Select data from SAP table /SAPAPO/PT_AOEXT_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/PT_AOEXT_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/PT_AOEXT_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/PT_AOEXT_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/PT_AOEXT_STR TYPE STANDARD TABLE OF /SAPAPO/PT_AOEXT_STR,
      WA_/SAPAPO/PT_AOEXT_STR TYPE /SAPAPO/PT_AOEXT_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/PT_AOEXT_STR> TYPE /SAPAPO/PT_AOEXT_STR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/PT_AOEXT_STR
*  INTO TABLE @DATA(IT_/SAPAPO/PT_AOEXT_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/PT_AOEXT_STR INDEX 1 INTO DATA(WA_/SAPAPO/PT_AOEXT_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/PT_AOEXT_STR>-MARKED = 1.
</SAPAPO/PT_AOEXT_STR>-LOCNO = 1.
</SAPAPO/PT_AOEXT_STR>-RESNA = 1.
</SAPAPO/PT_AOEXT_STR>-MATNR = 1.
</SAPAPO/PT_AOEXT_STR>-MAKTX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/PT_AOEXT_STR-CATNA, sy-vline,
  WA_/SAPAPO/PT_AOEXT_STR-PLANR, sy-vline,
  WA_/SAPAPO/PT_AOEXT_STR-PPENA, sy-vline,
  WA_/SAPAPO/PT_AOEXT_STR-MEOUT, sy-vline,
  WA_/SAPAPO/PT_AOEXT_STR-QUANT, sy-vline,
  WA_/SAPAPO/PT_AOEXT_STR-QREAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/PT_AOEXT_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/PT_AOEXT_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/PT_AOEXT_STR INTO WA_/SAPAPO/PT_AOEXT_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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PT_AOEXT_STR-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PT_AOEXT_STR-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEOUT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/PT_AOEXT_STR-MEOUT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/PT_AOEXT_STR-MEOUT.
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/PT_AOEXT_STR_STR, 
MARKED TYPE STRING,
LOCNO TYPE STRING,
RESNA TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
CATNA TYPE STRING,
PLANR TYPE STRING,
PPENA TYPE STRING,
MEOUT TYPE STRING,
QUANT TYPE STRING,
QREAL TYPE STRING,
QORIG TYPE STRING,
QCNFR TYPE STRING,
ORDNO TYPE STRING,
POSNO TYPE STRING,
LINNO TYPE STRING,
OOUTD TYPE STRING,
OOUTT TYPE STRING,
PRODUCABLE TYPE STRING,
OUTPUT_FIXED TYPE STRING,
INPUT_FIXED TYPE STRING,
PART_DELIVERED TYPE STRING,
FINAL_DELIVERY TYPE STRING,
UNPLANNED TYPE STRING,
RELEASED TYPE STRING,
DATE_FIXED TYPE STRING,
STARTED TYPE STRING,
PART_CONFIRMED TYPE STRING,
FINAL_CONFIRMED TYPE STRING,
INTERRUPTED TYPE STRING,
ASTAD TYPE STRING,
ASTAT TYPE STRING,
ASTAS TYPE STRING,
ACNFD TYPE STRING,
ACNFT TYPE STRING,
AENDD TYPE STRING,
AENDT TYPE STRING,
TZONE TYPE STRING,
PT_ACTDUR_DAYS TYPE STRING,
PT_ACTDUR TYPE STRING,
ATEXT TYPE STRING,
ACTID TYPE STRING,
ACTYP TYPE STRING,
CV_EX TYPE STRING,
PROPS TYPE STRING,
B_CDP TYPE STRING,
BACKLOG TYPE STRING,
INPROW TYPE STRING,
CAPACITY_DEMAND TYPE STRING,
BUCKET_DEMAND TYPE STRING,
JOINT TYPE STRING,
EFFECTIVITY_MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/PT_AOEXT_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/PT_AOEXT_STR_STR-MARKED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-LOCNO sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-RESNA sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-MATNR sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-MAKTX sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-CATNA sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PLANR sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PPENA sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-MEOUT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-QUANT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-QREAL sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-QORIG sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-QCNFR sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ORDNO sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-POSNO sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-LINNO sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-OOUTD sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-OOUTT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PRODUCABLE sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-OUTPUT_FIXED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-INPUT_FIXED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PART_DELIVERED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-FINAL_DELIVERY sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-UNPLANNED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-RELEASED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-DATE_FIXED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-STARTED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PART_CONFIRMED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-FINAL_CONFIRMED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-INTERRUPTED sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ASTAD sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ASTAT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ASTAS sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ACNFD sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ACNFT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-AENDD sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-AENDT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-TZONE sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PT_ACTDUR_DAYS sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PT_ACTDUR sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ATEXT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ACTID sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-ACTYP sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-CV_EX sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-PROPS sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-B_CDP sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-BACKLOG sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-INPROW sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-CAPACITY_DEMAND sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-BUCKET_DEMAND sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-JOINT sy-vline 
WA_/SAPAPO/PT_AOEXT_STR_STR-EFFECTIVITY_MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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