ABAP Select data from SAP table PPMRP_MFG_ORDER_COMPONENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMRP_MFG_ORDER_COMPONENT
*  INTO TABLE @DATA(IT_PPMRP_MFG_ORDER_COMPONENT2).
*--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_PPMRP_MFG_ORDER_COMPONENT INDEX 1 INTO DATA(WA_PPMRP_MFG_ORDER_COMPONENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMRP_MFG_ORDER_COMPONENT>-MRPELEMENT = 1.
<PPMRP_MFG_ORDER_COMPONENT>-MRPELEMENTITEM = 1.
<PPMRP_MFG_ORDER_COMPONENT>-MRPELEMENTCATEGORY = 1.
<PPMRP_MFG_ORDER_COMPONENT>-SOURCEMRPELEMENT = 1.
<PPMRP_MFG_ORDER_COMPONENT>-MATERIAL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMRP_MFG_ORDER_COMPONENT-MATERIALNAME, sy-vline,
  WA_PPMRP_MFG_ORDER_COMPONENT-MRPPLANT, sy-vline,
  WA_PPMRP_MFG_ORDER_COMPONENT-MRPAREA, sy-vline,
  WA_PPMRP_MFG_ORDER_COMPONENT-MRPELEMENTOPENQUANTITY, sy-vline,
  WA_PPMRP_MFG_ORDER_COMPONENT-MRPELEMENTMISSINGQUANTITY, sy-vline,
  WA_PPMRP_MFG_ORDER_COMPONENT-MRPELEMENTDELAYEDQUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPMRP_MFG_ORDER_COMPONENT 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_PPMRP_MFG_ORDER_COMPONENT 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_PPMRP_MFG_ORDER_COMPONENT INTO WA_PPMRP_MFG_ORDER_COMPONENT.


*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_PPMRP_MFG_ORDER_COMPONENT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMRP_MFG_ORDER_COMPONENT-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATERIALEXTERNALID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPMRP_MFG_ORDER_COMPONENT-MATERIALEXTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMRP_MFG_ORDER_COMPONENT-MATERIALEXTERNALID.
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_PPMRP_MFG_ORDER_COMPONENT_STR, 
MRPELEMENT TYPE STRING,
MRPELEMENTITEM TYPE STRING,
MRPELEMENTCATEGORY TYPE STRING,
SOURCEMRPELEMENT TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
MRPPLANT TYPE STRING,
MRPAREA TYPE STRING,
MRPELEMENTOPENQUANTITY TYPE STRING,
MRPELEMENTMISSINGQUANTITY TYPE STRING,
MRPELEMENTDELAYEDQUANTITY TYPE STRING,
MRPELEMENTUNCOVEREDQUANTITY TYPE STRING,
MATERIALBASEUNITTEXT TYPE STRING,
UNITOFMEASURECOMMERCIALNAME TYPE STRING,
QUANTITYPRECISION TYPE STRING,
MRPELEMENTAVAILYORRQMTDATE TYPE STRING,
MRPCONTROLLER TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
MAXIMUMDELAYINWORKDAYS TYPE STRING,
MATERIALEXTERNALID TYPE STRING,
TARGETQUANTITYUNITDISPLAYDCMLS TYPE STRING,
ORDERQUANTITY TYPE STRING,
MRPPLANNINGSEGMENTTYPE TYPE STRING,
MRPPLANNINGSEGMENTTYPEDESC TYPE STRING,
MRPPLANNINGSEGMENTNUMBER TYPE STRING,
MRPPLANNINGSEGMENTNUMBEREXT TYPE STRING,
PRODUCTIONPLANT TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMRP_MFG_ORDER_COMPONENT_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_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENT sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTITEM sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTCATEGORY sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-SOURCEMRPELEMENT sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MATERIAL sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MATERIALNAME sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPPLANT sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPAREA sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTOPENQUANTITY sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTMISSINGQUANTITY sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTDELAYEDQUANTITY sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTUNCOVEREDQUANTITY sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MATERIALBASEUNITTEXT sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-UNITOFMEASURECOMMERCIALNAME sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-QUANTITYPRECISION sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPELEMENTAVAILYORRQMTDATE sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPCONTROLLER sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPCONTROLLERNAME sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MAXIMUMDELAYINWORKDAYS sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MATERIALEXTERNALID sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-TARGETQUANTITYUNITDISPLAYDCMLS sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-ORDERQUANTITY sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPPLANNINGSEGMENTTYPE sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPPLANNINGSEGMENTTYPEDESC sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPPLANNINGSEGMENTNUMBER sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-MRPPLANNINGSEGMENTNUMBEREXT sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-PRODUCTIONPLANT sy-vline 
WA_PPMRP_MFG_ORDER_COMPONENT_STR-DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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