ABAP Select data from SAP table PMXLIST_RT1_CE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PMXLIST_RT1_CE 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 PMXLIST_RT1_CE. 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 PMXLIST_RT1_CE 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_PMXLIST_RT1_CE TYPE STANDARD TABLE OF PMXLIST_RT1_CE,
      WA_PMXLIST_RT1_CE TYPE PMXLIST_RT1_CE,
      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: <PMXLIST_RT1_CE> TYPE PMXLIST_RT1_CE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PMXLIST_RT1_CE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PMXLIST_RT1_CE
  INTO TABLE IT_PMXLIST_RT1_CE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXLIST_RT1_CE
*  INTO TABLE @DATA(IT_PMXLIST_RT1_CE2).
*--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_PMXLIST_RT1_CE INDEX 1 INTO DATA(WA_PMXLIST_RT1_CE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PMXLIST_RT1_CE ASSIGNING <PMXLIST_RT1_CE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMXLIST_RT1_CE>-REPAT = 1.
<PMXLIST_RT1_CE>-BUKRS = 1.
<PMXLIST_RT1_CE>-WERKS = 1.
<PMXLIST_RT1_CE>-BTRTL = 1.
<PMXLIST_RT1_CE>-RASOC = 1.

ENDLOOP.

LOOP AT IT_PMXLIST_RT1_CE INTO WA_PMXLIST_RT1_CE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXLIST_RT1_CE-DOMIC, sy-vline,
  WA_PMXLIST_RT1_CE-ACTIV, sy-vline,
  WA_PMXLIST_RT1_CE-BEGDA, sy-vline,
  WA_PMXLIST_RT1_CE-ENDDA, sy-vline,
  WA_PMXLIST_RT1_CE-CLART, sy-vline,
  WA_PMXLIST_RT1_CE-NFRAC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXLIST_RT1_CE 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_PMXLIST_RT1_CE 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_PMXLIST_RT1_CE INTO WA_PMXLIST_RT1_CE.


*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 PIDEX, internal->external for field PERSONID_EXT
CALL FUNCTION 'CONVERSION_EXIT_PIDEX_OUTPUT'
  EXPORTING
    input =                      WA_PMXLIST_RT1_CE-PERSONID_EXT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMXLIST_RT1_CE-PERSONID_EXT.
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_PMXLIST_RT1_CE_STR, 
REPAT TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
BTRTL TYPE STRING,
RASOC TYPE STRING,
DOMIC TYPE STRING,
ACTIV TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
CLART TYPE STRING,
NFRAC TYPE STRING,
GRART TYPE STRING,
PRANT TYPE STRING,
PRCAL TYPE STRING,
PRACT TYPE STRING,
NCT TYPE STRING,
TDSIT TYPE STRING,
SPIPPT TYPE STRING,
NUMDEF TYPE STRING,
NUMTRP TYPE STRING,
PERSONID_EXT TYPE STRING,
REPLE TYPE STRING,
NREPLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXLIST_RT1_CE_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_PMXLIST_RT1_CE_STR-REPAT sy-vline 
WA_PMXLIST_RT1_CE_STR-BUKRS sy-vline 
WA_PMXLIST_RT1_CE_STR-WERKS sy-vline 
WA_PMXLIST_RT1_CE_STR-BTRTL sy-vline 
WA_PMXLIST_RT1_CE_STR-RASOC sy-vline 
WA_PMXLIST_RT1_CE_STR-DOMIC sy-vline 
WA_PMXLIST_RT1_CE_STR-ACTIV sy-vline 
WA_PMXLIST_RT1_CE_STR-BEGDA sy-vline 
WA_PMXLIST_RT1_CE_STR-ENDDA sy-vline 
WA_PMXLIST_RT1_CE_STR-CLART sy-vline 
WA_PMXLIST_RT1_CE_STR-NFRAC sy-vline 
WA_PMXLIST_RT1_CE_STR-GRART sy-vline 
WA_PMXLIST_RT1_CE_STR-PRANT sy-vline 
WA_PMXLIST_RT1_CE_STR-PRCAL sy-vline 
WA_PMXLIST_RT1_CE_STR-PRACT sy-vline 
WA_PMXLIST_RT1_CE_STR-NCT sy-vline 
WA_PMXLIST_RT1_CE_STR-TDSIT sy-vline 
WA_PMXLIST_RT1_CE_STR-SPIPPT sy-vline 
WA_PMXLIST_RT1_CE_STR-NUMDEF sy-vline 
WA_PMXLIST_RT1_CE_STR-NUMTRP sy-vline 
WA_PMXLIST_RT1_CE_STR-PERSONID_EXT sy-vline 
WA_PMXLIST_RT1_CE_STR-REPLE sy-vline 
WA_PMXLIST_RT1_CE_STR-NREPLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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