ABAP Select data from SAP table PLM_RMIAPL50_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PLM_RMIAPL50_ALV 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 PLM_RMIAPL50_ALV. 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 PLM_RMIAPL50_ALV 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_PLM_RMIAPL50_ALV TYPE STANDARD TABLE OF PLM_RMIAPL50_ALV,
      WA_PLM_RMIAPL50_ALV TYPE PLM_RMIAPL50_ALV,
      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: <PLM_RMIAPL50_ALV> TYPE PLM_RMIAPL50_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PLM_RMIAPL50_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PLM_RMIAPL50_ALV
  INTO TABLE IT_PLM_RMIAPL50_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PLM_RMIAPL50_ALV
*  INTO TABLE @DATA(IT_PLM_RMIAPL50_ALV2).
*--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_PLM_RMIAPL50_ALV INDEX 1 INTO DATA(WA_PLM_RMIAPL50_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PLM_RMIAPL50_ALV ASSIGNING <PLM_RMIAPL50_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PLM_RMIAPL50_ALV>-TEXTC = 1.
<PLM_RMIAPL50_ALV>-DESC = 1.
<PLM_RMIAPL50_ALV>-TEXTH1 = 1.
<PLM_RMIAPL50_ALV>-TEXTH2 = 1.
<PLM_RMIAPL50_ALV>-TEXTH3 = 1.

ENDLOOP.

LOOP AT IT_PLM_RMIAPL50_ALV INTO WA_PLM_RMIAPL50_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PLM_RMIAPL50_ALV-TEXTI1, sy-vline,
  WA_PLM_RMIAPL50_ALV-TEXTI2, sy-vline,
  WA_PLM_RMIAPL50_ALV-TEXTI3, sy-vline,
  WA_PLM_RMIAPL50_ALV-TEXTI4, sy-vline,
  WA_PLM_RMIAPL50_ALV-TEXTI5, sy-vline,
  WA_PLM_RMIAPL50_ALV-TEXTI6, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PLM_RMIAPL50_ALV 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_PLM_RMIAPL50_ALV 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_PLM_RMIAPL50_ALV INTO WA_PLM_RMIAPL50_ALV.


*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 TEXTC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLM_RMIAPL50_ALV-TEXTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLM_RMIAPL50_ALV-TEXTC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TEXTI6
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PLM_RMIAPL50_ALV-TEXTI6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PLM_RMIAPL50_ALV-TEXTI6.
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_PLM_RMIAPL50_ALV_STR, 
TEXTC TYPE STRING,
DESC TYPE STRING,
TEXTH1 TYPE STRING,
TEXTH2 TYPE STRING,
TEXTH3 TYPE STRING,
TEXTI1 TYPE STRING,
TEXTI2 TYPE STRING,
TEXTI3 TYPE STRING,
TEXTI4 TYPE STRING,
TEXTI5 TYPE STRING,
TEXTI6 TYPE STRING,
TEXTE1 TYPE STRING,
TEXTE2 TYPE STRING,
TEXTE3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PLM_RMIAPL50_ALV_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_PLM_RMIAPL50_ALV_STR-TEXTC sy-vline 
WA_PLM_RMIAPL50_ALV_STR-DESC sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTH1 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTH2 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTH3 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTI1 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTI2 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTI3 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTI4 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTI5 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTI6 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTE1 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTE2 sy-vline 
WA_PLM_RMIAPL50_ALV_STR-TEXTE3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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