ABAP Select data from SAP table MMPUR_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_ITM TYPE STANDARD TABLE OF MMPUR_PPR_S_CTR_DRAFTS_ITM,
      WA_MMPUR_PPR_S_CTR_DRAFTS_ITM TYPE MMPUR_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_ITM> TYPE MMPUR_PPR_S_CTR_DRAFTS_ITM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMPUR_PPR_S_CTR_DRAFTS_ITM
*  INTO TABLE @DATA(IT_MMPUR_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_ITM INDEX 1 INTO DATA(WA_MMPUR_PPR_S_CTR_DRAFTS_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMPUR_PPR_S_CTR_DRAFTS_ITM>-MATERIAL = 1.
<MMPUR_PPR_S_CTR_DRAFTS_ITM>-ACCOUNTASSIGNMENTCATEGORY = 1.
<MMPUR_PPR_S_CTR_DRAFTS_ITM>-NETPRICEAMOUNT = 1.
<MMPUR_PPR_S_CTR_DRAFTS_ITM>-TARGETQUANTITY = 1.
<MMPUR_PPR_S_CTR_DRAFTS_ITM>-MATERIALGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-PLANT, sy-vline,
  WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-ORDERUNIT, sy-vline,
  WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-DRAFTID, sy-vline,
  WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-PURCHASECONTRACTITEM, sy-vline,
  WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-NETPRICE, sy-vline,
  WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-PURCHASEREQUISITION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMPUR_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_ITM INTO WA_MMPUR_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_ITM-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PURCHASEREQUISITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-PURCHASEREQUISITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMPUR_PPR_S_CTR_DRAFTS_ITM-PURCHASEREQUISITION.
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_PPR_S_CTR_DRAFTS_ITM_STR, 
MATERIAL TYPE STRING,
ACCOUNTASSIGNMENTCATEGORY TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
TARGETQUANTITY TYPE STRING,
MATERIALGROUP TYPE STRING,
PLANT TYPE STRING,
ORDERUNIT TYPE STRING,
DRAFTID TYPE STRING,
PURCHASECONTRACTITEM TYPE STRING,
NETPRICE TYPE STRING,
PURCHASEREQUISITION TYPE STRING,
PURCHASEREQUISITIONITEM TYPE STRING,
PLANTNAME TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
PURCHASECONTRACTITEMTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMPUR_PPR_S_CTR_DRAFTS_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_PPR_S_CTR_DRAFTS_ITM_STR-MATERIAL sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-ACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-NETPRICEAMOUNT sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-TARGETQUANTITY sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-MATERIALGROUP sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-PLANT sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-ORDERUNIT sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-DRAFTID sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-PURCHASECONTRACTITEM sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-NETPRICE sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-PURCHASEREQUISITION sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-PURCHASEREQUISITIONITEM sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-PLANTNAME sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-MATERIALGROUPNAME sy-vline 
WA_MMPUR_PPR_S_CTR_DRAFTS_ITM_STR-PURCHASECONTRACTITEMTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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