ABAP Select data from SAP table ISPURREQNITMSOPENFORCONFTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPURREQNITMSOPENFORCONFTP
*  INTO TABLE @DATA(IT_ISPURREQNITMSOPENFORCONFTP2).
*--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_ISPURREQNITMSOPENFORCONFTP INDEX 1 INTO DATA(WA_ISPURREQNITMSOPENFORCONFTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISPURREQNITMSOPENFORCONFTP>-KEY = 1.
<ISPURREQNITMSOPENFORCONFTP>-PARENT_KEY = 1.
<ISPURREQNITMSOPENFORCONFTP>-ROOT_KEY = 1.
<ISPURREQNITMSOPENFORCONFTP>-PURCHASEREQUISITION = 1.
<ISPURREQNITMSOPENFORCONFTP>-PURCHASEORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPURREQNITMSOPENFORCONFTP-PROCURINGPLANT, sy-vline,
  WA_ISPURREQNITMSOPENFORCONFTP-CREATIONDATE, sy-vline,
  WA_ISPURREQNITMSOPENFORCONFTP-PURCHASINGGROUP, sy-vline,
  WA_ISPURREQNITMSOPENFORCONFTP-PURREQNSSPREQUESTOR, sy-vline,
  WA_ISPURREQNITMSOPENFORCONFTP-PURREQNSSPAUTHOR, sy-vline,
  WA_ISPURREQNITMSOPENFORCONFTP-PROCUREMENTHUBSOURCESYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPURREQNITMSOPENFORCONFTP 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_ISPURREQNITMSOPENFORCONFTP 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_ISPURREQNITMSOPENFORCONFTP INTO WA_ISPURREQNITMSOPENFORCONFTP.


*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_ISPURREQNITMSOPENFORCONFTP-PURCHASEREQUISITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPURREQNITMSOPENFORCONFTP-PURCHASEREQUISITION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PURCHASEORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISPURREQNITMSOPENFORCONFTP-PURCHASEORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPURREQNITMSOPENFORCONFTP-PURCHASEORDER.
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_ISPURREQNITMSOPENFORCONFTP_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEORDER TYPE STRING,
PROCURINGPLANT TYPE STRING,
CREATIONDATE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURREQNSSPREQUESTOR TYPE STRING,
PURREQNSSPAUTHOR TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
PROCMTHUBCOMPANYCODE TYPE STRING,
PLANT TYPE STRING,
REFERENCEDOCUMENTPLANT TYPE STRING,
NUMBEROFITEMS TYPE STRING,
ISEXTPURGSCENARIO TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
PURREQNDESCRIPTION TYPE STRING,
CURRENCY TYPE STRING,
TOTALNETAMOUNT TYPE STRING,
DELIVERYNOTE TYPE STRING,
MATERIALDOCUMENTHEADERTEXT TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,
ISACTIVEENTITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISPURREQNITMSOPENFORCONFTP_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_ISPURREQNITMSOPENFORCONFTP_STR-KEY sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PARENT_KEY sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-ROOT_KEY sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PURCHASEREQUISITION sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PURCHASEORDER sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PROCURINGPLANT sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-CREATIONDATE sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PURCHASINGGROUP sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PURREQNSSPREQUESTOR sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PURREQNSSPAUTHOR sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PROCMTHUBCOMPANYCODE sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PLANT sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-REFERENCEDOCUMENTPLANT sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-NUMBEROFITEMS sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-ISEXTPURGSCENARIO sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-LASTCHANGEDATETIME sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-PURREQNDESCRIPTION sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-CURRENCY sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-TOTALNETAMOUNT sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DELIVERYNOTE sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-MATERIALDOCUMENTHEADERTEXT sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DOCUMENTDATE sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-POSTINGDATE sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-HASACTIVEENTITY sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISPURREQNITMSOPENFORCONFTP_STR-ISACTIVEENTITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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