ABAP Select data from SAP table RMXTS_QPLOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMXTS_QPLOS
*  INTO TABLE @DATA(IT_RMXTS_QPLOS2).
*--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_RMXTS_QPLOS INDEX 1 INTO DATA(WA_RMXTS_QPLOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMXTS_QPLOS>-PRUEFLOS = 1.
<RMXTS_QPLOS>-HERKUNFT = 1.
<RMXTS_QPLOS>-TRIALID = 1.
<RMXTS_QPLOS>-PLNTY = 1.
<RMXTS_QPLOS>-PLNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMXTS_QPLOS-PLNAL, sy-vline,
  WA_RMXTS_QPLOS-WARPL, sy-vline,
  WA_RMXTS_QPLOS-WAPOS, sy-vline,
  WA_RMXTS_QPLOS-ABNUM, sy-vline,
  WA_RMXTS_QPLOS-STRAT, sy-vline,
  WA_RMXTS_QPLOS-KTEXTLOS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMXTS_QPLOS 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_RMXTS_QPLOS 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_RMXTS_QPLOS INTO WA_RMXTS_QPLOS.


*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 ALPHA, internal->external for field PRUEFLOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXTS_QPLOS-PRUEFLOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXTS_QPLOS-PRUEFLOS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field WAPOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMXTS_QPLOS-WAPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMXTS_QPLOS-WAPOS.
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_RMXTS_QPLOS_STR, 
PRUEFLOS TYPE STRING,
HERKUNFT TYPE STRING,
TRIALID TYPE STRING,
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
WARPL TYPE STRING,
WAPOS TYPE STRING,
ABNUM TYPE STRING,
STRAT TYPE STRING,
KTEXTLOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMXTS_QPLOS_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_RMXTS_QPLOS_STR-PRUEFLOS sy-vline 
WA_RMXTS_QPLOS_STR-HERKUNFT sy-vline 
WA_RMXTS_QPLOS_STR-TRIALID sy-vline 
WA_RMXTS_QPLOS_STR-PLNTY sy-vline 
WA_RMXTS_QPLOS_STR-PLNNR sy-vline 
WA_RMXTS_QPLOS_STR-PLNAL sy-vline 
WA_RMXTS_QPLOS_STR-WARPL sy-vline 
WA_RMXTS_QPLOS_STR-WAPOS sy-vline 
WA_RMXTS_QPLOS_STR-ABNUM sy-vline 
WA_RMXTS_QPLOS_STR-STRAT sy-vline 
WA_RMXTS_QPLOS_STR-KTEXTLOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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