ABAP Select data from SAP table IPMRPSUPLYNODE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPMRPSUPLYNODE
*  INTO TABLE @DATA(IT_IPMRPSUPLYNODE2).
*--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_IPMRPSUPLYNODE INDEX 1 INTO DATA(WA_IPMRPSUPLYNODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPMRPSUPLYNODE>-MANDT = 1.
<IPMRPSUPLYNODE>-PMRPSIMULATION = 1.
<IPMRPSUPLYNODE>-PRODUCT = 1.
<IPMRPSUPLYNODE>-PLANT = 1.
<IPMRPSUPLYNODE>-MRPAREA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPMRPSUPLYNODE-PMRPSUPPLYGROUP, sy-vline,
  WA_IPMRPSUPLYNODE-PMRPSUPPLYGROUPCATEGORY, sy-vline,
  WA_IPMRPSUPLYNODE-PMRPFLXBLCSTRTPRODUCTGROUP, sy-vline,
  WA_IPMRPSUPLYNODE-PMRPSUPPLYGROUPSOURCEOFSUPPLY, sy-vline,
  WA_IPMRPSUPLYNODE-PMRPSOURCEOFSUPPLYINTERNALID, sy-vline,
  WA_IPMRPSUPLYNODE-PARENTMRPAREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPMRPSUPLYNODE 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_IPMRPSUPLYNODE 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_IPMRPSUPLYNODE INTO WA_IPMRPSUPLYNODE.


*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_IPMRPSUPLYNODE-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPMRPSUPLYNODE-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field UNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IPMRPSUPLYNODE-UNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IPMRPSUPLYNODE-UNITOFMEASURE.
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_IPMRPSUPLYNODE_STR, 
MANDT TYPE STRING,
PMRPSIMULATION TYPE STRING,
PRODUCT TYPE STRING,
PLANT TYPE STRING,
MRPAREA TYPE STRING,
PMRPSUPPLYGROUP TYPE STRING,
PMRPSUPPLYGROUPCATEGORY TYPE STRING,
PMRPFLXBLCSTRTPRODUCTGROUP TYPE STRING,
PMRPSUPPLYGROUPSOURCEOFSUPPLY TYPE STRING,
PMRPSOURCEOFSUPPLYINTERNALID TYPE STRING,
PARENTMRPAREA TYPE STRING,
PARENTPRODUCT TYPE STRING,
PMRPREFERENCEPLAN TYPE STRING,
PMRPFLEXIBLECONSTRAINT TYPE STRING,
MATERIALNAME TYPE STRING,
MRPPROCEDURE TYPE STRING,
PMRPSUPPLYGROUPCATEGORYNAME TYPE STRING,
BUCKETCATEGORY TYPE STRING,
UNITOFMEASURE TYPE STRING,
MRPCONTROLLER TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
PROCUREMENTTYPE TYPE STRING,
PROCUREMENTTYPEDESCRIPTION TYPE STRING,
PMRPSOURCEOFSUPPLYNAME TYPE STRING,
PLANTNAME TYPE STRING,
MRPAREATEXT TYPE STRING,
PRODUCTNAME TYPE STRING,
LOWLEVELCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPMRPSUPLYNODE_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_IPMRPSUPLYNODE_STR-MANDT sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSIMULATION sy-vline 
WA_IPMRPSUPLYNODE_STR-PRODUCT sy-vline 
WA_IPMRPSUPLYNODE_STR-PLANT sy-vline 
WA_IPMRPSUPLYNODE_STR-MRPAREA sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSUPPLYGROUP sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSUPPLYGROUPCATEGORY sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPFLXBLCSTRTPRODUCTGROUP sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSUPPLYGROUPSOURCEOFSUPPLY sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSOURCEOFSUPPLYINTERNALID sy-vline 
WA_IPMRPSUPLYNODE_STR-PARENTMRPAREA sy-vline 
WA_IPMRPSUPLYNODE_STR-PARENTPRODUCT sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPREFERENCEPLAN sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPFLEXIBLECONSTRAINT sy-vline 
WA_IPMRPSUPLYNODE_STR-MATERIALNAME sy-vline 
WA_IPMRPSUPLYNODE_STR-MRPPROCEDURE sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSUPPLYGROUPCATEGORYNAME sy-vline 
WA_IPMRPSUPLYNODE_STR-BUCKETCATEGORY sy-vline 
WA_IPMRPSUPLYNODE_STR-UNITOFMEASURE sy-vline 
WA_IPMRPSUPLYNODE_STR-MRPCONTROLLER sy-vline 
WA_IPMRPSUPLYNODE_STR-MRPCONTROLLERNAME sy-vline 
WA_IPMRPSUPLYNODE_STR-PROCUREMENTTYPE sy-vline 
WA_IPMRPSUPLYNODE_STR-PROCUREMENTTYPEDESCRIPTION sy-vline 
WA_IPMRPSUPLYNODE_STR-PMRPSOURCEOFSUPPLYNAME sy-vline 
WA_IPMRPSUPLYNODE_STR-PLANTNAME sy-vline 
WA_IPMRPSUPLYNODE_STR-MRPAREATEXT sy-vline 
WA_IPMRPSUPLYNODE_STR-PRODUCTNAME sy-vline 
WA_IPMRPSUPLYNODE_STR-LOWLEVELCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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