ABAP Select data from SAP table PPC_MAT_DET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPC_MAT_DET
*  INTO TABLE @DATA(IT_PPC_MAT_DET2).
*--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_PPC_MAT_DET INDEX 1 INTO DATA(WA_PPC_MAT_DET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPC_MAT_DET>-MANDT = 1.
<PPC_MAT_DET>-ACCID = 1.
<PPC_MAT_DET>-MATID = 1.
<PPC_MAT_DET>-KDAUF = 1.
<PPC_MAT_DET>-KDPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPC_MAT_DET-PSPNR, sy-vline,
  WA_PPC_MAT_DET-LIFNR, sy-vline,
  WA_PPC_MAT_DET-KUNNR, sy-vline,
  WA_PPC_MAT_DET-CHARG, sy-vline,
  WA_PPC_MAT_DET-CALCNR, sy-vline,
  WA_PPC_MAT_DET-CRTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPC_MAT_DET 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_PPC_MAT_DET 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_PPC_MAT_DET INTO WA_PPC_MAT_DET.


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

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_PPC_MAT_DET-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPC_MAT_DET-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PPC_MAT_DET-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPC_MAT_DET-KUNNR.
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_PPC_MAT_DET_STR, 
MANDT TYPE STRING,
ACCID TYPE STRING,
MATID TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPNR TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
CHARG TYPE STRING,
CALCNR TYPE STRING,
CRTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPC_MAT_DET_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_PPC_MAT_DET_STR-MANDT sy-vline 
WA_PPC_MAT_DET_STR-ACCID sy-vline 
WA_PPC_MAT_DET_STR-MATID sy-vline 
WA_PPC_MAT_DET_STR-KDAUF sy-vline 
WA_PPC_MAT_DET_STR-KDPOS sy-vline 
WA_PPC_MAT_DET_STR-PSPNR sy-vline 
WA_PPC_MAT_DET_STR-LIFNR sy-vline 
WA_PPC_MAT_DET_STR-KUNNR sy-vline 
WA_PPC_MAT_DET_STR-CHARG sy-vline 
WA_PPC_MAT_DET_STR-CALCNR sy-vline 
WA_PPC_MAT_DET_STR-CRTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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