ABAP Select data from SAP table PPH_MRP_MATLIST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPH_MRP_MATLIST
*  INTO TABLE @DATA(IT_PPH_MRP_MATLIST2).
*--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_PPH_MRP_MATLIST INDEX 1 INTO DATA(WA_PPH_MRP_MATLIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPH_MRP_MATLIST>-MANDT = 1.
<PPH_MRP_MATLIST>-DISST = 1.
<PPH_MRP_MATLIST>-MATNR = 1.
<PPH_MRP_MATLIST>-WERKS = 1.
<PPH_MRP_MATLIST>-BERID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPH_MRP_MATLIST-LOG_UUID, sy-vline,
  WA_PPH_MRP_MATLIST-MSGID, sy-vline,
  WA_PPH_MRP_MATLIST-MSGTY, sy-vline,
  WA_PPH_MRP_MATLIST-MSGNO, sy-vline,
  WA_PPH_MRP_MATLIST-MSGV1, sy-vline,
  WA_PPH_MRP_MATLIST-MSGV2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPH_MRP_MATLIST 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_PPH_MRP_MATLIST 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_PPH_MRP_MATLIST INTO WA_PPH_MRP_MATLIST.


*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 MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPH_MRP_MATLIST-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPH_MRP_MATLIST-MATNR.
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_PPH_MRP_MATLIST_STR, 
MANDT TYPE STRING,
DISST TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BERID TYPE STRING,
LOG_UUID TYPE STRING,
MSGID TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MSGTEXT TYPE STRING,
TIMESTAMP TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
DISPO TYPE STRING,
PLAN_IN_ABAP TYPE STRING,
PLANNED_IN_HANA TYPE STRING,
PLANNED_IN_ABAP TYPE STRING,
PLANNED_IN_PPDS TYPE STRING,
SOURCE_OF_ISSUE TYPE STRING,
SOURCE_OF_ISSUE_TEXT TYPE STRING,
ISSUE_CATEGORY TYPE STRING,
CATEGORY_TEXT TYPE STRING,
COUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPH_MRP_MATLIST_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_PPH_MRP_MATLIST_STR-MANDT sy-vline 
WA_PPH_MRP_MATLIST_STR-DISST sy-vline 
WA_PPH_MRP_MATLIST_STR-MATNR sy-vline 
WA_PPH_MRP_MATLIST_STR-WERKS sy-vline 
WA_PPH_MRP_MATLIST_STR-BERID sy-vline 
WA_PPH_MRP_MATLIST_STR-LOG_UUID sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGID sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGTY sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGNO sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGV1 sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGV2 sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGV3 sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGV4 sy-vline 
WA_PPH_MRP_MATLIST_STR-MSGTEXT sy-vline 
WA_PPH_MRP_MATLIST_STR-TIMESTAMP sy-vline 
WA_PPH_MRP_MATLIST_STR-DATUM sy-vline 
WA_PPH_MRP_MATLIST_STR-UZEIT sy-vline 
WA_PPH_MRP_MATLIST_STR-DISPO sy-vline 
WA_PPH_MRP_MATLIST_STR-PLAN_IN_ABAP sy-vline 
WA_PPH_MRP_MATLIST_STR-PLANNED_IN_HANA sy-vline 
WA_PPH_MRP_MATLIST_STR-PLANNED_IN_ABAP sy-vline 
WA_PPH_MRP_MATLIST_STR-PLANNED_IN_PPDS sy-vline 
WA_PPH_MRP_MATLIST_STR-SOURCE_OF_ISSUE sy-vline 
WA_PPH_MRP_MATLIST_STR-SOURCE_OF_ISSUE_TEXT sy-vline 
WA_PPH_MRP_MATLIST_STR-ISSUE_CATEGORY sy-vline 
WA_PPH_MRP_MATLIST_STR-CATEGORY_TEXT sy-vline 
WA_PPH_MRP_MATLIST_STR-COUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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