ABAP Select data from SAP table IPMRPNODE 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 IPMRPNODE 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 IPMRPNODE. 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 IPMRPNODE 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_IPMRPNODE TYPE STANDARD TABLE OF IPMRPNODE,
      WA_IPMRPNODE TYPE IPMRPNODE,
      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: <IPMRPNODE> TYPE IPMRPNODE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPMRPNODE
*  INTO TABLE @DATA(IT_IPMRPNODE2).
*--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_IPMRPNODE INDEX 1 INTO DATA(WA_IPMRPNODE2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPMRPNODE-PMRPSUPPLYGROUP, sy-vline,
  WA_IPMRPNODE-PMRPSUPPLYGROUPCATEGORY, sy-vline,
  WA_IPMRPNODE-PMRPSOURCEOFSUPPLYINTERNALID, sy-vline,
  WA_IPMRPNODE-PMRPFLEXIBLECONSTRAINT, sy-vline,
  WA_IPMRPNODE-PMRPFLXBLCSTRTPRODUCTGROUP, sy-vline,
  WA_IPMRPNODE-PMRPPARENTSUPPLYGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPMRPNODE 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_IPMRPNODE 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_IPMRPNODE INTO WA_IPMRPNODE.


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

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

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