ABAP Select data from SAP table ISPQITMDHIERASSB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISPQITMDHIERASSB
*  INTO TABLE @DATA(IT_ISPQITMDHIERASSB2).
*--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_ISPQITMDHIERASSB INDEX 1 INTO DATA(WA_ISPQITMDHIERASSB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISPQITMDHIERASSB>-MANDT = 1.
<ISPQITMDHIERASSB>-SRCGPROJQTNITEMUUID = 1.
<ISPQITMDHIERASSB>-SOURCINGPROJECTQUOTATIONITEM = 1.
<ISPQITMDHIERASSB>-SOURCINGPROJECTQUOTATIONUUID = 1.
<ISPQITMDHIERASSB>-SRCGPROJQUOTATIONITEMTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISPQITMDHIERASSB-SRCGPROJQTNITEMCLASSIFICATION, sy-vline,
  WA_ISPQITMDHIERASSB-SOURCINGPROJECTITEMSTABLEUUID, sy-vline,
  WA_ISPQITMDHIERASSB-ALTERNATIVEITEMID, sy-vline,
  WA_ISPQITMDHIERASSB-HIERARCHYNODELEVEL, sy-vline,
  WA_ISPQITMDHIERASSB-SOURCINGPROJECTQUOTATION, sy-vline,
  WA_ISPQITMDHIERASSB-SOURCINGPROJECTQUOTATIONNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISPQITMDHIERASSB 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_ISPQITMDHIERASSB 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_ISPQITMDHIERASSB INTO WA_ISPQITMDHIERASSB.


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

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

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

*Conversion exit CUNIT, internal->external for field REQUESTEDQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISPQITMDHIERASSB-REQUESTEDQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISPQITMDHIERASSB-REQUESTEDQUANTITYUNIT.
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_ISPQITMDHIERASSB_STR, 
MANDT TYPE STRING,
SRCGPROJQTNITEMUUID TYPE STRING,
SOURCINGPROJECTQUOTATIONITEM TYPE STRING,
SOURCINGPROJECTQUOTATIONUUID TYPE STRING,
SRCGPROJQUOTATIONITEMTYPE TYPE STRING,
SRCGPROJQTNITEMCLASSIFICATION TYPE STRING,
SOURCINGPROJECTITEMSTABLEUUID TYPE STRING,
ALTERNATIVEITEMID TYPE STRING,
HIERARCHYNODELEVEL TYPE STRING,
SOURCINGPROJECTQUOTATION TYPE STRING,
SOURCINGPROJECTQUOTATIONNAME TYPE STRING,
SOURCINGPROJECTQUOTATIONTYPE TYPE STRING,
SRCGPROJQTNITEMDESCRIPTION TYPE STRING,
SOURCINGPROJECTITEMUUID TYPE STRING,
MATERIAL TYPE STRING,
PRODUCTTYPE TYPE STRING,
MATERIALGROUP TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
REQUESTEDQUANTITYUNIT TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
PROPOSEDDELIVERYDATE TYPE STRING,
PERFORMANCEPERIODSTARTDATE TYPE STRING,
PERFORMANCEPERIODENDDATE TYPE STRING,
PLANT TYPE STRING,
COMPANYCODE TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
SRCGPROJQTNITEMOFFERINGCODE TYPE STRING,
SRCGPROJQTNITEMEXCLUDINGRSN TYPE STRING,
SRCGPROJQTNITEMSUITABILITY TYPE STRING,
SRCGPROJNEGTTNQTANITEMUUID TYPE STRING,
SRCGPROJNEGTTNITMINCLUSIONTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISPQITMDHIERASSB_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_ISPQITMDHIERASSB_STR-MANDT sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQTNITEMUUID sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTQUOTATIONITEM sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTQUOTATIONUUID sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQUOTATIONITEMTYPE sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQTNITEMCLASSIFICATION sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTITEMSTABLEUUID sy-vline 
WA_ISPQITMDHIERASSB_STR-ALTERNATIVEITEMID sy-vline 
WA_ISPQITMDHIERASSB_STR-HIERARCHYNODELEVEL sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTQUOTATION sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTQUOTATIONNAME sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTQUOTATIONTYPE sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQTNITEMDESCRIPTION sy-vline 
WA_ISPQITMDHIERASSB_STR-SOURCINGPROJECTITEMUUID sy-vline 
WA_ISPQITMDHIERASSB_STR-MATERIAL sy-vline 
WA_ISPQITMDHIERASSB_STR-PRODUCTTYPE sy-vline 
WA_ISPQITMDHIERASSB_STR-MATERIALGROUP sy-vline 
WA_ISPQITMDHIERASSB_STR-REQUESTEDQUANTITY sy-vline 
WA_ISPQITMDHIERASSB_STR-REQUESTEDQUANTITYUNIT sy-vline 
WA_ISPQITMDHIERASSB_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_ISPQITMDHIERASSB_STR-PROPOSEDDELIVERYDATE sy-vline 
WA_ISPQITMDHIERASSB_STR-PERFORMANCEPERIODSTARTDATE sy-vline 
WA_ISPQITMDHIERASSB_STR-PERFORMANCEPERIODENDDATE sy-vline 
WA_ISPQITMDHIERASSB_STR-PLANT sy-vline 
WA_ISPQITMDHIERASSB_STR-COMPANYCODE sy-vline 
WA_ISPQITMDHIERASSB_STR-PURCHASINGGROUP sy-vline 
WA_ISPQITMDHIERASSB_STR-PURCHASINGORGANIZATION sy-vline 
WA_ISPQITMDHIERASSB_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQTNITEMOFFERINGCODE sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQTNITEMEXCLUDINGRSN sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJQTNITEMSUITABILITY sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJNEGTTNQTANITEMUUID sy-vline 
WA_ISPQITMDHIERASSB_STR-SRCGPROJNEGTTNITMINCLUSIONTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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