ABAP Select data from SAP table LXYRD_ACT_RFINPUT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LXYRD_ACT_RFINPUT
*  INTO TABLE @DATA(IT_LXYRD_ACT_RFINPUT2).
*--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_LXYRD_ACT_RFINPUT INDEX 1 INTO DATA(WA_LXYRD_ACT_RFINPUT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LXYRD_ACT_RFINPUT>-LYARD = 1.
<LXYRD_ACT_RFINPUT>-DEVTY = 1.
<LXYRD_ACT_RFINPUT>-QUEUE = 1.
<LXYRD_ACT_RFINPUT>-DEVIC = 1.
<LXYRD_ACT_RFINPUT>-SIGNI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LXYRD_ACT_RFINPUT-SCACD, sy-vline,
  WA_LXYRD_ACT_RFINPUT-FWAGN, sy-vline,
  WA_LXYRD_ACT_RFINPUT-EXIDV2, sy-vline,
  WA_LXYRD_ACT_RFINPUT-DOOR, sy-vline,
  WA_LXYRD_ACT_RFINPUT-STGAR, sy-vline,
  WA_LXYRD_ACT_RFINPUT-NHOURS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LXYRD_ACT_RFINPUT 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_LXYRD_ACT_RFINPUT 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_LXYRD_ACT_RFINPUT INTO WA_LXYRD_ACT_RFINPUT.


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

*Conversion exit ALPHA, internal->external for field REFER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LXYRD_ACT_RFINPUT-REFER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LXYRD_ACT_RFINPUT-REFER.
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_LXYRD_ACT_RFINPUT_STR, 
LYARD TYPE STRING,
DEVTY TYPE STRING,
QUEUE TYPE STRING,
DEVIC TYPE STRING,
SIGNI TYPE STRING,
SCACD TYPE STRING,
FWAGN TYPE STRING,
EXIDV2 TYPE STRING,
DOOR TYPE STRING,
STGAR TYPE STRING,
NHOURS TYPE STRING,
RFTYP TYPE STRING,
REFER TYPE STRING,
VENDOR TYPE STRING,
LIFEX TYPE STRING,
NAMEF TYPE STRING,
YLCCLDST TYPE STRING,
YLOCTDST TYPE STRING,
YLCTXDST TYPE STRING,
CNFRMDST TYPE STRING,
CP1_YLOCTDST TYPE STRING,
CP2_YLOCTDST TYPE STRING,
CP3_YLOCTDST TYPE STRING,
CP4_YLOCTDST TYPE STRING,
CP1_YLCTXDST TYPE STRING,
CP2_YLCTXDST TYPE STRING,
CP3_YLCTXDST TYPE STRING,
CP4_YLCTXDST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LXYRD_ACT_RFINPUT_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_LXYRD_ACT_RFINPUT_STR-LYARD sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-DEVTY sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-QUEUE sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-DEVIC sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-SIGNI sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-SCACD sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-FWAGN sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-EXIDV2 sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-DOOR sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-STGAR sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-NHOURS sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-RFTYP sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-REFER sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-VENDOR sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-LIFEX sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-NAMEF sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-YLCCLDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-YLOCTDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-YLCTXDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CNFRMDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP1_YLOCTDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP2_YLOCTDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP3_YLOCTDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP4_YLOCTDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP1_YLCTXDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP2_YLCTXDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP3_YLCTXDST sy-vline 
WA_LXYRD_ACT_RFINPUT_STR-CP4_YLCTXDST sy-vline      INTO ld_text SEPARATED BY SPACE.

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