ABAP Select data from SAP table PPHMRP_ERR_MATS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPHMRP_ERR_MATS
*  INTO TABLE @DATA(IT_PPHMRP_ERR_MATS2).
*--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_PPHMRP_ERR_MATS INDEX 1 INTO DATA(WA_PPHMRP_ERR_MATS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPHMRP_ERR_MATS>-MANDT = 1.
<PPHMRP_ERR_MATS>-MATERIALID = 1.
<PPHMRP_ERR_MATS>-MRPPLANT = 1.
<PPHMRP_ERR_MATS>-MATERIALDESCRIPTION = 1.
<PPHMRP_ERR_MATS>-MRPPLANTNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPHMRP_ERR_MATS-MRPAREA, sy-vline,
  WA_PPHMRP_ERR_MATS-MRPCONTROLLERID, sy-vline,
  WA_PPHMRP_ERR_MATS-MRPCONTROLLERNAME, sy-vline,
  WA_PPHMRP_ERR_MATS-LASTMRPRUN, sy-vline,
  WA_PPHMRP_ERR_MATS-LASTPLNGFILEENTRYUPDATE, sy-vline,
  WA_PPHMRP_ERR_MATS-MRPTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PPHMRP_ERR_MATS 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_PPHMRP_ERR_MATS 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_PPHMRP_ERR_MATS INTO WA_PPHMRP_ERR_MATS.


*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 MATERIALID
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PPHMRP_ERR_MATS-MATERIALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPHMRP_ERR_MATS-MATERIALID.
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_PPHMRP_ERR_MATS_STR, 
MANDT TYPE STRING,
MATERIALID TYPE STRING,
MRPPLANT TYPE STRING,
MATERIALDESCRIPTION TYPE STRING,
MRPPLANTNAME TYPE STRING,
MRPAREA TYPE STRING,
MRPCONTROLLERID TYPE STRING,
MRPCONTROLLERNAME TYPE STRING,
LASTMRPRUN TYPE STRING,
LASTPLNGFILEENTRYUPDATE TYPE STRING,
MRPTYPE TYPE STRING,
MRPTYPEDESC TYPE STRING,
MRPLOTSIZEPROCEDURE TYPE STRING,
MRPLOTSIZEPROCEDUREDESC TYPE STRING,
MESSAGEID TYPE STRING,
MESSAGETYPE TYPE STRING,
MESSAGETYPETEXT TYPE STRING,
MESSAGENUMBER TYPE STRING,
MESSAGEVAR1 TYPE STRING,
MESSAGEVAR2 TYPE STRING,
MESSAGEVAR3 TYPE STRING,
MESSAGEVAR4 TYPE STRING,
MESSAGETEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPHMRP_ERR_MATS_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_PPHMRP_ERR_MATS_STR-MANDT sy-vline 
WA_PPHMRP_ERR_MATS_STR-MATERIALID sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPPLANT sy-vline 
WA_PPHMRP_ERR_MATS_STR-MATERIALDESCRIPTION sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPPLANTNAME sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPAREA sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPCONTROLLERID sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPCONTROLLERNAME sy-vline 
WA_PPHMRP_ERR_MATS_STR-LASTMRPRUN sy-vline 
WA_PPHMRP_ERR_MATS_STR-LASTPLNGFILEENTRYUPDATE sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPTYPE sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPTYPEDESC sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPLOTSIZEPROCEDURE sy-vline 
WA_PPHMRP_ERR_MATS_STR-MRPLOTSIZEPROCEDUREDESC sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGEID sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGETYPE sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGETYPETEXT sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGENUMBER sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGEVAR1 sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGEVAR2 sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGEVAR3 sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGEVAR4 sy-vline 
WA_PPHMRP_ERR_MATS_STR-MESSAGETEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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