ABAP Select data from SAP table PMMOVERDUENRREL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMOVERDUENRREL
*  INTO TABLE @DATA(IT_PMMOVERDUENRREL2).
*--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_PMMOVERDUENRREL INDEX 1 INTO DATA(WA_PMMOVERDUENRREL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMOVERDUENRREL>-MANDT = 1.
<PMMOVERDUENRREL>-PURCHASEORDER = 1.
<PMMOVERDUENRREL>-PURCHASEORDERITEM = 1.
<PMMOVERDUENRREL>-PURCHASEORDERITEMTEXT = 1.
<PMMOVERDUENRREL>-PURCHASINGORGANIZATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMOVERDUENRREL-PURCHASINGGROUP, sy-vline,
  WA_PMMOVERDUENRREL-CURRENCY, sy-vline,
  WA_PMMOVERDUENRREL-MATERIAL, sy-vline,
  WA_PMMOVERDUENRREL-SUPPLIER, sy-vline,
  WA_PMMOVERDUENRREL-COMPANYCODE, sy-vline,
  WA_PMMOVERDUENRREL-PLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMOVERDUENRREL 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_PMMOVERDUENRREL 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_PMMOVERDUENRREL INTO WA_PMMOVERDUENRREL.


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

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

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

*Conversion exit CUNIT, internal->external for field PURCHASEORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PMMOVERDUENRREL-PURCHASEORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMOVERDUENRREL-PURCHASEORDERQUANTITYUNIT.
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_PMMOVERDUENRREL_STR, 
MANDT TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
PURCHASEORDERITEMTEXT TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURCHASINGGROUP TYPE STRING,
CURRENCY TYPE STRING,
MATERIAL TYPE STRING,
SUPPLIER TYPE STRING,
COMPANYCODE TYPE STRING,
PLANT TYPE STRING,
MATERIALGROUP TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
PURCHASEORDERQTY TYPE STRING,
RELEASEISNOTCOMPLETED TYPE STRING,
SCHEDULELINEDELIVERYDATE TYPE STRING,
OPENPURCHASEORDERQUANTITY TYPE STRING,
TODAY TYPE STRING,
SUPPLIERCOUNTRY TYPE STRING,
OPENPURCHASEORDERNETAMOUNT TYPE STRING,
ISCONFIRMEDSCHEDULELINE TYPE STRING,
ISOVERDUE TYPE STRING,
PURCHASEORDERDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMOVERDUENRREL_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_PMMOVERDUENRREL_STR-MANDT sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASEORDER sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASEORDERITEM sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASEORDERITEMTEXT sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASINGORGANIZATION sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASINGGROUP sy-vline 
WA_PMMOVERDUENRREL_STR-CURRENCY sy-vline 
WA_PMMOVERDUENRREL_STR-MATERIAL sy-vline 
WA_PMMOVERDUENRREL_STR-SUPPLIER sy-vline 
WA_PMMOVERDUENRREL_STR-COMPANYCODE sy-vline 
WA_PMMOVERDUENRREL_STR-PLANT sy-vline 
WA_PMMOVERDUENRREL_STR-MATERIALGROUP sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASEORDERQTY sy-vline 
WA_PMMOVERDUENRREL_STR-RELEASEISNOTCOMPLETED sy-vline 
WA_PMMOVERDUENRREL_STR-SCHEDULELINEDELIVERYDATE sy-vline 
WA_PMMOVERDUENRREL_STR-OPENPURCHASEORDERQUANTITY sy-vline 
WA_PMMOVERDUENRREL_STR-TODAY sy-vline 
WA_PMMOVERDUENRREL_STR-SUPPLIERCOUNTRY sy-vline 
WA_PMMOVERDUENRREL_STR-OPENPURCHASEORDERNETAMOUNT sy-vline 
WA_PMMOVERDUENRREL_STR-ISCONFIRMEDSCHEDULELINE sy-vline 
WA_PMMOVERDUENRREL_STR-ISOVERDUE sy-vline 
WA_PMMOVERDUENRREL_STR-PURCHASEORDERDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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