ABAP Select data from SAP table /ISDFPS/COPY_MATVIEW_E into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/COPY_MATVIEW_E 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 /ISDFPS/COPY_MATVIEW_E. 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 /ISDFPS/COPY_MATVIEW_E 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_/ISDFPS/COPY_MATVIEW_E TYPE STANDARD TABLE OF /ISDFPS/COPY_MATVIEW_E,
      WA_/ISDFPS/COPY_MATVIEW_E TYPE /ISDFPS/COPY_MATVIEW_E,
      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: </ISDFPS/COPY_MATVIEW_E> TYPE /ISDFPS/COPY_MATVIEW_E.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/COPY_MATVIEW_E
  INTO TABLE IT_/ISDFPS/COPY_MATVIEW_E.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/COPY_MATVIEW_E
*  INTO TABLE @DATA(IT_/ISDFPS/COPY_MATVIEW_E2).
*--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_/ISDFPS/COPY_MATVIEW_E INDEX 1 INTO DATA(WA_/ISDFPS/COPY_MATVIEW_E2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/COPY_MATVIEW_E ASSIGNING </ISDFPS/COPY_MATVIEW_E>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/COPY_MATVIEW_E>-AUSME = 1.
</ISDFPS/COPY_MATVIEW_E>-BWSCL = 1.
</ISDFPS/COPY_MATVIEW_E>-CASNR = 1.
</ISDFPS/COPY_MATVIEW_E>-COPAM = 1.
</ISDFPS/COPY_MATVIEW_E>-EKGRP = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/COPY_MATVIEW_E INTO WA_/ISDFPS/COPY_MATVIEW_E.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/COPY_MATVIEW_E-EPRIO, sy-vline,
  WA_/ISDFPS/COPY_MATVIEW_E-FABKZ, sy-vline,
  WA_/ISDFPS/COPY_MATVIEW_E-FPRFM, sy-vline,
  WA_/ISDFPS/COPY_MATVIEW_E-GPNUM, sy-vline,
  WA_/ISDFPS/COPY_MATVIEW_E-HERKL, sy-vline,
  WA_/ISDFPS/COPY_MATVIEW_E-HERKR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/COPY_MATVIEW_E 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_/ISDFPS/COPY_MATVIEW_E 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_/ISDFPS/COPY_MATVIEW_E INTO WA_/ISDFPS/COPY_MATVIEW_E.


*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 CUNIT, internal->external for field AUSME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/COPY_MATVIEW_E-AUSME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/COPY_MATVIEW_E-AUSME.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field STDPD
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/COPY_MATVIEW_E-STDPD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/COPY_MATVIEW_E-STDPD.
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_/ISDFPS/COPY_MATVIEW_E_STR, 
AUSME TYPE STRING,
BWSCL TYPE STRING,
CASNR TYPE STRING,
COPAM TYPE STRING,
EKGRP TYPE STRING,
EPRIO TYPE STRING,
FABKZ TYPE STRING,
FPRFM TYPE STRING,
GPNUM TYPE STRING,
HERKL TYPE STRING,
HERKR TYPE STRING,
INDUS TYPE STRING,
ITARK TYPE STRING,
KAUTB TYPE STRING,
KORDB TYPE STRING,
KZAGL TYPE STRING,
KZKRI TYPE STRING,
LOGGR TYPE STRING,
MEGRU TYPE STRING,
MFRGR TYPE STRING,
MMSTA TYPE STRING,
MMSTD TYPE STRING,
MOGRU TYPE STRING,
MTVER TYPE STRING,
PERIV TYPE STRING,
PERKZ TYPE STRING,
PRCTR TYPE STRING,
PRENC TYPE STRING,
PREND TYPE STRING,
PRENO TYPE STRING,
QMATV TYPE STRING,
SERNP TYPE STRING,
STAWN TYPE STRING,
STDPD TYPE STRING,
STEUC TYPE STRING,
USEQU TYPE STRING,
WEBAZ TYPE STRING,
XCHPF TYPE STRING,
XMCNG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/COPY_MATVIEW_E_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_/ISDFPS/COPY_MATVIEW_E_STR-AUSME sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-BWSCL sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-CASNR sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-COPAM sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-EKGRP sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-EPRIO sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-FABKZ sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-FPRFM sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-GPNUM sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-HERKL sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-HERKR sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-INDUS sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-ITARK sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-KAUTB sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-KORDB sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-KZAGL sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-KZKRI sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-LOGGR sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-MEGRU sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-MFRGR sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-MMSTA sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-MMSTD sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-MOGRU sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-MTVER sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-PERIV sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-PERKZ sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-PRCTR sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-PRENC sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-PREND sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-PRENO sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-QMATV sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-SERNP sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-STAWN sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-STDPD sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-STEUC sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-USEQU sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-WEBAZ sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-XCHPF sy-vline 
WA_/ISDFPS/COPY_MATVIEW_E_STR-XMCNG sy-vline      INTO ld_text SEPARATED BY SPACE.

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