ABAP Select data from SAP table /CEECV/ROLOLISTMATW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CEECV/ROLOLISTMATW
*  INTO TABLE @DATA(IT_/CEECV/ROLOLISTMATW2).
*--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_/CEECV/ROLOLISTMATW INDEX 1 INTO DATA(WA_/CEECV/ROLOLISTMATW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CEECV/ROLOLISTMATW>-FIELD_LINK = 1.
</CEECV/ROLOLISTMATW>-XMATNR = 1.
</CEECV/ROLOLISTMATW>-BWTAR = 1.
</CEECV/ROLOLISTMATW>-WERK = 1.
</CEECV/ROLOLISTMATW>-LGORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CEECV/ROLOLISTMATW-SOBKZ, sy-vline,
  WA_/CEECV/ROLOLISTMATW-LINKK, sy-vline,
  WA_/CEECV/ROLOLISTMATW-MAKTX, sy-vline,
  WA_/CEECV/ROLOLISTMATW-BEGPRICE1, sy-vline,
  WA_/CEECV/ROLOLISTMATW-WAERS, sy-vline,
  WA_/CEECV/ROLOLISTMATW-YMEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CEECV/ROLOLISTMATW 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_/CEECV/ROLOLISTMATW 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_/CEECV/ROLOLISTMATW INTO WA_/CEECV/ROLOLISTMATW.


*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 XMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/ROLOLISTMATW-XMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/ROLOLISTMATW-XMATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field YMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/ROLOLISTMATW-YMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/ROLOLISTMATW-YMEINS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/ROLOLISTMATW-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/ROLOLISTMATW-VBELN.
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_/CEECV/ROLOLISTMATW_STR, 
FIELD_LINK TYPE STRING,
XMATNR TYPE STRING,
BWTAR TYPE STRING,
WERK TYPE STRING,
LGORT TYPE STRING,
SOBKZ TYPE STRING,
LINKK TYPE STRING,
MAKTX TYPE STRING,
BEGPRICE1 TYPE STRING,
WAERS TYPE STRING,
YMEINS TYPE STRING,
BEGREMN TYPE STRING,
ENDREMN TYPE STRING,
BEGSUM TYPE STRING,
ENDSUM TYPE STRING,
BKLAS TYPE STRING,
XSAKNR TYPE STRING,
EKGRP TYPE STRING,
MTART TYPE STRING,
MATKL TYPE STRING,
YBUKRS TYPE STRING,
BISMT TYPE STRING,
DELTLBKUMD TYPE STRING,
DELTLBKUMK TYPE STRING,
DELTSALKD TYPE STRING,
DELTSALKK TYPE STRING,
YCHANGPRICE TYPE STRING,
BANNER_DOC TYPE STRING,
BWKEY TYPE STRING,
BWTTY TYPE STRING,
TBLSB TYPE STRING,
LASTDATE TYPE STRING,
VPRSV TYPE STRING,
STPRS TYPE STRING,
BWMOD TYPE STRING,
KTOPL TYPE STRING,
LBKUM TYPE STRING,
PSPNR TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
SORTL TYPE STRING,
NOTRIGHTS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CEECV/ROLOLISTMATW_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_/CEECV/ROLOLISTMATW_STR-FIELD_LINK sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-XMATNR sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BWTAR sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-WERK sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-LGORT sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-SOBKZ sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-LINKK sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-MAKTX sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BEGPRICE1 sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-WAERS sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-YMEINS sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BEGREMN sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-ENDREMN sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BEGSUM sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-ENDSUM sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BKLAS sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-XSAKNR sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-EKGRP sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-MTART sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-MATKL sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-YBUKRS sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BISMT sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-DELTLBKUMD sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-DELTLBKUMK sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-DELTSALKD sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-DELTSALKK sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-YCHANGPRICE sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BANNER_DOC sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BWKEY sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BWTTY sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-TBLSB sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-LASTDATE sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-VPRSV sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-STPRS sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-BWMOD sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-KTOPL sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-LBKUM sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-PSPNR sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-VBELN sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-POSNR sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-SORTL sy-vline 
WA_/CEECV/ROLOLISTMATW_STR-NOTRIGHTS sy-vline      INTO ld_text SEPARATED BY SPACE.

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