ABAP Select data from SAP table MMPUR_S_SP_ITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_S_SP_ITM
*  INTO TABLE @DATA(IT_MMPUR_S_SP_ITM2).
*--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_MMPUR_S_SP_ITM INDEX 1 INTO DATA(WA_MMPUR_S_SP_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_S_SP_ITM>-MATERIAL = 1.
<MMPUR_S_SP_ITM>-PRODUCTTYPE = 1.
<MMPUR_S_SP_ITM>-MATERIALGROUP = 1.
<MMPUR_S_SP_ITM>-REQUESTEDQUANTITY = 1.
<MMPUR_S_SP_ITM>-REQUESTEDQUANTITYUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_S_SP_ITM-REQUESTEDDELIVERYDATE, sy-vline,
  WA_MMPUR_S_SP_ITM-PERFORMANCEPERIODSTARTDATE, sy-vline,
  WA_MMPUR_S_SP_ITM-PERFORMANCEPERIODENDDATE, sy-vline,
  WA_MMPUR_S_SP_ITM-ORDERITEMQTYTOBASEQTYNMRTR, sy-vline,
  WA_MMPUR_S_SP_ITM-ORDERITEMQTYTOBASEQTYDNMNTR, sy-vline,
  WA_MMPUR_S_SP_ITM-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_S_SP_ITM 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_MMPUR_S_SP_ITM 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_MMPUR_S_SP_ITM INTO WA_MMPUR_S_SP_ITM.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_S_SP_ITM-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_S_SP_ITM-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REQUESTEDQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_S_SP_ITM-REQUESTEDQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_S_SP_ITM-REQUESTEDQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field ITEMDELIVERYADDRESSID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_S_SP_ITM-ITEMDELIVERYADDRESSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_S_SP_ITM-ITEMDELIVERYADDRESSID.
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_MMPUR_S_SP_ITM_STR, 
MATERIAL TYPE STRING,
PRODUCTTYPE TYPE STRING,
MATERIALGROUP TYPE STRING,
REQUESTEDQUANTITY TYPE STRING,
REQUESTEDQUANTITYUNIT TYPE STRING,
REQUESTEDDELIVERYDATE TYPE STRING,
PERFORMANCEPERIODSTARTDATE TYPE STRING,
PERFORMANCEPERIODENDDATE TYPE STRING,
ORDERITEMQTYTOBASEQTYNMRTR TYPE STRING,
ORDERITEMQTYTOBASEQTYDNMNTR TYPE STRING,
PLANT TYPE STRING,
MANUALDELIVERYADDRESSID TYPE STRING,
REFERENCEDELIVERYADDRESSID TYPE STRING,
ITEMDELIVERYADDRESSID TYPE STRING,
DUMMY_SRCGPROJITM_INCL_EEW_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_S_SP_ITM_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_MMPUR_S_SP_ITM_STR-MATERIAL sy-vline 
WA_MMPUR_S_SP_ITM_STR-PRODUCTTYPE sy-vline 
WA_MMPUR_S_SP_ITM_STR-MATERIALGROUP sy-vline 
WA_MMPUR_S_SP_ITM_STR-REQUESTEDQUANTITY sy-vline 
WA_MMPUR_S_SP_ITM_STR-REQUESTEDQUANTITYUNIT sy-vline 
WA_MMPUR_S_SP_ITM_STR-REQUESTEDDELIVERYDATE sy-vline 
WA_MMPUR_S_SP_ITM_STR-PERFORMANCEPERIODSTARTDATE sy-vline 
WA_MMPUR_S_SP_ITM_STR-PERFORMANCEPERIODENDDATE sy-vline 
WA_MMPUR_S_SP_ITM_STR-ORDERITEMQTYTOBASEQTYNMRTR sy-vline 
WA_MMPUR_S_SP_ITM_STR-ORDERITEMQTYTOBASEQTYDNMNTR sy-vline 
WA_MMPUR_S_SP_ITM_STR-PLANT sy-vline 
WA_MMPUR_S_SP_ITM_STR-MANUALDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_SP_ITM_STR-REFERENCEDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_SP_ITM_STR-ITEMDELIVERYADDRESSID sy-vline 
WA_MMPUR_S_SP_ITM_STR-DUMMY_SRCGPROJITM_INCL_EEW_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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