ABAP Select data from SAP table NPRDPLANT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM NPRDPLANT
*  INTO TABLE @DATA(IT_NPRDPLANT2).
*--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_NPRDPLANT INDEX 1 INTO DATA(WA_NPRDPLANT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<NPRDPLANT>-MANDT = 1.
<NPRDPLANT>-PRODUCT = 1.
<NPRDPLANT>-PLANT = 1.
<NPRDPLANT>-PURCHASINGGROUP = 1.
<NPRDPLANT>-ABCINDICATOR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_NPRDPLANT-COUNTRYOFORIGIN, sy-vline,
  WA_NPRDPLANT-REGIONOFORIGIN, sy-vline,
  WA_NPRDPLANT-MRPRESPONSIBLE, sy-vline,
  WA_NPRDPLANT-PLANTNAME, sy-vline,
  WA_NPRDPLANT-STORAGELOCATIONNAME, sy-vline,
  WA_NPRDPLANT-COUNTRYNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_NPRDPLANT 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_NPRDPLANT 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_NPRDPLANT INTO WA_NPRDPLANT.


*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 PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_NPRDPLANT-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_NPRDPLANT-PRODUCT.
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_NPRDPLANT_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
PURCHASINGGROUP TYPE STRING,
ABCINDICATOR TYPE STRING,
COUNTRYOFORIGIN TYPE STRING,
REGIONOFORIGIN TYPE STRING,
MRPRESPONSIBLE TYPE STRING,
PLANTNAME TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
COUNTRYNAME TYPE STRING,
MATERIALABCCLASSIFICATIONDESC TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_NPRDPLANT_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_NPRDPLANT_STR-MANDT sy-vline 
WA_NPRDPLANT_STR-PRODUCT sy-vline 
WA_NPRDPLANT_STR-PLANT sy-vline 
WA_NPRDPLANT_STR-PURCHASINGGROUP sy-vline 
WA_NPRDPLANT_STR-ABCINDICATOR sy-vline 
WA_NPRDPLANT_STR-COUNTRYOFORIGIN sy-vline 
WA_NPRDPLANT_STR-REGIONOFORIGIN sy-vline 
WA_NPRDPLANT_STR-MRPRESPONSIBLE sy-vline 
WA_NPRDPLANT_STR-PLANTNAME sy-vline 
WA_NPRDPLANT_STR-STORAGELOCATIONNAME sy-vline 
WA_NPRDPLANT_STR-COUNTRYNAME sy-vline 
WA_NPRDPLANT_STR-MATERIALABCCLASSIFICATIONDESC sy-vline 
WA_NPRDPLANT_STR-PURCHASINGGROUPNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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