ABAP Select data from SAP table IAUTHREQPEACEPOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IAUTHREQPEACEPOS
*  INTO TABLE @DATA(IT_IAUTHREQPEACEPOS2).
*--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_IAUTHREQPEACEPOS INDEX 1 INTO DATA(WA_IAUTHREQPEACEPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IAUTHREQPEACEPOS>-MANDT = 1.
<IAUTHREQPEACEPOS>-DFSASSGMTUUID = 1.
<IAUTHREQPEACEPOS>-PURCHASEREQUISITION = 1.
<IAUTHREQPEACEPOS>-PURCHASEREQUISITIONITEM = 1.
<IAUTHREQPEACEPOS>-FORCEELEMENTORGSRCEID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IAUTHREQPEACEPOS-DFSPOSITIONID, sy-vline,
  WA_IAUTHREQPEACEPOS-FLXBLMATLPLNGOBJECTID, sy-vline,
  WA_IAUTHREQPEACEPOS-FLXBLMATLPLNGOBJVARIANTID, sy-vline,
  WA_IAUTHREQPEACEPOS-DFSASSGMTUSAGETYPE, sy-vline,
  WA_IAUTHREQPEACEPOS-DFSASSGMTVALDTYSTRTDATE, sy-vline,
  WA_IAUTHREQPEACEPOS-DFSASSGMTVALDTYENDDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IAUTHREQPEACEPOS 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_IAUTHREQPEACEPOS 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_IAUTHREQPEACEPOS INTO WA_IAUTHREQPEACEPOS.


*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 PURCHASEREQUISITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IAUTHREQPEACEPOS-PURCHASEREQUISITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAUTHREQPEACEPOS-PURCHASEREQUISITION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field FLXMTPLOBJVARMODELPRODUCTID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IAUTHREQPEACEPOS-FLXMTPLOBJVARMODELPRODUCTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAUTHREQPEACEPOS-FLXMTPLOBJVARMODELPRODUCTID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IAUTHREQPEACEPOS-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAUTHREQPEACEPOS-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IAUTHREQPEACEPOS-PURCHASINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAUTHREQPEACEPOS-PURCHASINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IAUTHREQPEACEPOS-BASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAUTHREQPEACEPOS-BASEUNIT.
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_IAUTHREQPEACEPOS_STR, 
MANDT TYPE STRING,
DFSASSGMTUUID TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
FORCEELEMENTORGSRCEID TYPE STRING,
DFSPOSITIONID TYPE STRING,
FLXBLMATLPLNGOBJECTID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTID TYPE STRING,
DFSASSGMTUSAGETYPE TYPE STRING,
DFSASSGMTVALDTYSTRTDATE TYPE STRING,
DFSASSGMTVALDTYENDDATE TYPE STRING,
DFSASSGMTSTATUSCODE TYPE STRING,
DFSOBJECTVALDTYSTARTDATE TYPE STRING,
DFSOBJECTVALDTYENDDATE TYPE STRING,
FLXMTPLOBJVARMODELPRODUCTID TYPE STRING,
FLXBLMATLPLNGOBJECTUUID TYPE STRING,
FLXBLMATLPLNGOBJVARIANTUUID TYPE STRING,
FLXMTPLOBJVARMODELITMID TYPE STRING,
FRCELMNTORGSTOCKPLANT TYPE STRING,
FRCELMNTORGSTOCKSTORAGELOC TYPE STRING,
MATERIAL TYPE STRING,
PURREQNREQUESTOR TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
BASEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IAUTHREQPEACEPOS_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_IAUTHREQPEACEPOS_STR-MANDT sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSASSGMTUUID sy-vline 
WA_IAUTHREQPEACEPOS_STR-PURCHASEREQUISITION sy-vline 
WA_IAUTHREQPEACEPOS_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_IAUTHREQPEACEPOS_STR-FORCEELEMENTORGSRCEID sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSPOSITIONID sy-vline 
WA_IAUTHREQPEACEPOS_STR-FLXBLMATLPLNGOBJECTID sy-vline 
WA_IAUTHREQPEACEPOS_STR-FLXBLMATLPLNGOBJVARIANTID sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSASSGMTUSAGETYPE sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSASSGMTVALDTYSTRTDATE sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSASSGMTVALDTYENDDATE sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSASSGMTSTATUSCODE sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSOBJECTVALDTYSTARTDATE sy-vline 
WA_IAUTHREQPEACEPOS_STR-DFSOBJECTVALDTYENDDATE sy-vline 
WA_IAUTHREQPEACEPOS_STR-FLXMTPLOBJVARMODELPRODUCTID sy-vline 
WA_IAUTHREQPEACEPOS_STR-FLXBLMATLPLNGOBJECTUUID sy-vline 
WA_IAUTHREQPEACEPOS_STR-FLXBLMATLPLNGOBJVARIANTUUID sy-vline 
WA_IAUTHREQPEACEPOS_STR-FLXMTPLOBJVARMODELITMID sy-vline 
WA_IAUTHREQPEACEPOS_STR-FRCELMNTORGSTOCKPLANT sy-vline 
WA_IAUTHREQPEACEPOS_STR-FRCELMNTORGSTOCKSTORAGELOC sy-vline 
WA_IAUTHREQPEACEPOS_STR-MATERIAL sy-vline 
WA_IAUTHREQPEACEPOS_STR-PURREQNREQUESTOR sy-vline 
WA_IAUTHREQPEACEPOS_STR-PURCHASINGDOCUMENT sy-vline 
WA_IAUTHREQPEACEPOS_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_IAUTHREQPEACEPOS_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_IAUTHREQPEACEPOS_STR-REQUESTEDQUANTITY sy-vline 
WA_IAUTHREQPEACEPOS_STR-BASEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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