ABAP Select data from SAP table ISPURREQNITEMTEXT_WD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPURREQNITEMTEXT_WD
*  INTO TABLE @DATA(IT_ISPURREQNITEMTEXT_WD2).
*--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_ISPURREQNITEMTEXT_WD INDEX 1 INTO DATA(WA_ISPURREQNITEMTEXT_WD2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPURREQNITEMTEXT_WD-HASACTIVEENTITY, sy-vline,
  WA_ISPURREQNITEMTEXT_WD-DOCUMENTTEXT, sy-vline,
  WA_ISPURREQNITEMTEXT_WD-ARCHOBJECTNUMBER, sy-vline,
  WA_ISPURREQNITEMTEXT_WD-TECHNICALOBJECTTYPE, sy-vline,
  WA_ISPURREQNITEMTEXT_WD-DOCUMENTTEXTFOREDIT, sy-vline,
  WA_ISPURREQNITEMTEXT_WD-TEXTID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPURREQNITEMTEXT_WD 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_ISPURREQNITEMTEXT_WD 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_ISPURREQNITEMTEXT_WD INTO WA_ISPURREQNITEMTEXT_WD.


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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISPURREQNITEMTEXT_WD-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPURREQNITEMTEXT_WD-LANGUAGE.
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_ISPURREQNITEMTEXT_WD_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DOCUMENTTEXT TYPE STRING,
ARCHOBJECTNUMBER TYPE STRING,
TECHNICALOBJECTTYPE TYPE STRING,
DOCUMENTTEXTFOREDIT TYPE STRING,
TEXTID TYPE STRING,
PURREQNITEMLONGTEXT TYPE STRING,
LANGUAGE TYPE STRING,
CREATEDBYUSER TYPE STRING,
FIXEDINDICATOR TYPE STRING,
DISPLAYMODEOFTEXTTYPEINPURG TYPE STRING,
TEXTISADOPTEDFROMREFERENCE 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_ISPURREQNITEMTEXT_WD_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_ISPURREQNITEMTEXT_WD_STR-KEY sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-PARENT_KEY sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-ROOT_KEY sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-PURCHASEREQUISITION sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-HASACTIVEENTITY sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DOCUMENTTEXT sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-ARCHOBJECTNUMBER sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-TECHNICALOBJECTTYPE sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DOCUMENTTEXTFOREDIT sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-TEXTID sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-PURREQNITEMLONGTEXT sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-LANGUAGE sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-CREATEDBYUSER sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-FIXEDINDICATOR sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DISPLAYMODEOFTEXTTYPEINPURG sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-TEXTISADOPTEDFROMREFERENCE sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_ISPURREQNITEMTEXT_WD_STR-DRAFTENTITYOPERATIONCODE sy-vline 
WA_ISPURREQNITEMTEXT_WD_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.