ABAP Select data from SAP table FACV_RJET_WLI_02 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FACV_RJET_WLI_02 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 FACV_RJET_WLI_02. 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 FACV_RJET_WLI_02 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_FACV_RJET_WLI_02 TYPE STANDARD TABLE OF FACV_RJET_WLI_02,
      WA_FACV_RJET_WLI_02 TYPE FACV_RJET_WLI_02,
      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: <FACV_RJET_WLI_02> TYPE FACV_RJET_WLI_02.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FACV_RJET_WLI_02.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FACV_RJET_WLI_02
  INTO TABLE IT_FACV_RJET_WLI_02.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FACV_RJET_WLI_02
*  INTO TABLE @DATA(IT_FACV_RJET_WLI_022).
*--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_FACV_RJET_WLI_02 INDEX 1 INTO DATA(WA_FACV_RJET_WLI_022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FACV_RJET_WLI_02 ASSIGNING <FACV_RJET_WLI_02>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FACV_RJET_WLI_02>-MANDT = 1.
<FACV_RJET_WLI_02>-BELNR = 1.
<FACV_RJET_WLI_02>-BUKRS = 1.
<FACV_RJET_WLI_02>-GJAHR = 1.
<FACV_RJET_WLI_02>-DBATR = 1.

ENDLOOP.

LOOP AT IT_FACV_RJET_WLI_02 INTO WA_FACV_RJET_WLI_02.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FACV_RJET_WLI_02-SUM_OF_BSEG_WRBTR, sy-vline,
  WA_FACV_RJET_WLI_02-SUM_OF_BSEG_DMBTR, sy-vline,
  WA_FACV_RJET_WLI_02-DBZHL, sy-vline,
  WA_FACV_RJET_WLI_02-NUMBER_OF_OCCUR, sy-vline,
  WA_FACV_RJET_WLI_02-OCCUR_DAY, sy-vline,
  WA_FACV_RJET_WLI_02-FIRST_OCCUR_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FACV_RJET_WLI_02 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_FACV_RJET_WLI_02 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_FACV_RJET_WLI_02 INTO WA_FACV_RJET_WLI_02.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FACV_RJET_WLI_02-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACV_RJET_WLI_02-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FACV_RJET_WLI_02-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACV_RJET_WLI_02-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FACV_RJET_WLI_02-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACV_RJET_WLI_02-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FACV_RJET_WLI_02-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FACV_RJET_WLI_02-KURSF.
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_FACV_RJET_WLI_02_STR, 
MANDT TYPE STRING,
BELNR TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
DBATR TYPE STRING,
SUM_OF_BSEG_WRBTR TYPE STRING,
SUM_OF_BSEG_DMBTR TYPE STRING,
DBZHL TYPE STRING,
NUMBER_OF_OCCUR TYPE STRING,
OCCUR_DAY TYPE STRING,
FIRST_OCCUR_DATE TYPE STRING,
LAST_OCCUR_DATE TYPE STRING,
OCCUR_DAY_TYPE TYPE STRING,
BLOCKED_FOR_POSTING TYPE STRING,
END_BY_TYPE TYPE STRING,
FREQUENCY TYPE STRING,
DBAKZ TYPE STRING,
RECUR_SCHEDULE_USED TYPE STRING,
RECURRENCE_TYPE TYPE STRING,
LOGNUMBER TYPE STRING,
XSFHW TYPE STRING,
APPLLOGHIGHESTMESSAGESEVERITY TYPE STRING,
BUTXT TYPE STRING,
LDGRP TYPE STRING,
RLDNR TYPE STRING,
BSTAT TYPE STRING,
BKTXT TYPE STRING,
WAERS TYPE STRING,
HWAER TYPE STRING,
HWAE2 TYPE STRING,
HWAE3 TYPE STRING,
RFCCUR TYPE STRING,
BLART TYPE STRING,
USNAM TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
KURSF TYPE STRING,
WWERT TYPE STRING,
XBLNR TYPE STRING,
KURST TYPE STRING,
N_OCCUR_DAY_TYPE TYPE STRING,
N_END_BY_TYPE TYPE STRING,
N_RECURRENCE_TYPE TYPE STRING,
N_OCCUR_DAY TYPE STRING,
TAX_OF_BSET_FWSTE TYPE STRING,
TAX_OF_BSET_HWSTE TYPE STRING,
MONTHDAY TYPE STRING,
WEEKDAY TYPE STRING,
FISCALPERIODDAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FACV_RJET_WLI_02_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_FACV_RJET_WLI_02_STR-MANDT sy-vline 
WA_FACV_RJET_WLI_02_STR-BELNR sy-vline 
WA_FACV_RJET_WLI_02_STR-BUKRS sy-vline 
WA_FACV_RJET_WLI_02_STR-GJAHR sy-vline 
WA_FACV_RJET_WLI_02_STR-DBATR sy-vline 
WA_FACV_RJET_WLI_02_STR-SUM_OF_BSEG_WRBTR sy-vline 
WA_FACV_RJET_WLI_02_STR-SUM_OF_BSEG_DMBTR sy-vline 
WA_FACV_RJET_WLI_02_STR-DBZHL sy-vline 
WA_FACV_RJET_WLI_02_STR-NUMBER_OF_OCCUR sy-vline 
WA_FACV_RJET_WLI_02_STR-OCCUR_DAY sy-vline 
WA_FACV_RJET_WLI_02_STR-FIRST_OCCUR_DATE sy-vline 
WA_FACV_RJET_WLI_02_STR-LAST_OCCUR_DATE sy-vline 
WA_FACV_RJET_WLI_02_STR-OCCUR_DAY_TYPE sy-vline 
WA_FACV_RJET_WLI_02_STR-BLOCKED_FOR_POSTING sy-vline 
WA_FACV_RJET_WLI_02_STR-END_BY_TYPE sy-vline 
WA_FACV_RJET_WLI_02_STR-FREQUENCY sy-vline 
WA_FACV_RJET_WLI_02_STR-DBAKZ sy-vline 
WA_FACV_RJET_WLI_02_STR-RECUR_SCHEDULE_USED sy-vline 
WA_FACV_RJET_WLI_02_STR-RECURRENCE_TYPE sy-vline 
WA_FACV_RJET_WLI_02_STR-LOGNUMBER sy-vline 
WA_FACV_RJET_WLI_02_STR-XSFHW sy-vline 
WA_FACV_RJET_WLI_02_STR-APPLLOGHIGHESTMESSAGESEVERITY sy-vline 
WA_FACV_RJET_WLI_02_STR-BUTXT sy-vline 
WA_FACV_RJET_WLI_02_STR-LDGRP sy-vline 
WA_FACV_RJET_WLI_02_STR-RLDNR sy-vline 
WA_FACV_RJET_WLI_02_STR-BSTAT sy-vline 
WA_FACV_RJET_WLI_02_STR-BKTXT sy-vline 
WA_FACV_RJET_WLI_02_STR-WAERS sy-vline 
WA_FACV_RJET_WLI_02_STR-HWAER sy-vline 
WA_FACV_RJET_WLI_02_STR-HWAE2 sy-vline 
WA_FACV_RJET_WLI_02_STR-HWAE3 sy-vline 
WA_FACV_RJET_WLI_02_STR-RFCCUR sy-vline 
WA_FACV_RJET_WLI_02_STR-BLART sy-vline 
WA_FACV_RJET_WLI_02_STR-USNAM sy-vline 
WA_FACV_RJET_WLI_02_STR-CPUDT sy-vline 
WA_FACV_RJET_WLI_02_STR-CPUTM sy-vline 
WA_FACV_RJET_WLI_02_STR-KURSF sy-vline 
WA_FACV_RJET_WLI_02_STR-WWERT sy-vline 
WA_FACV_RJET_WLI_02_STR-XBLNR sy-vline 
WA_FACV_RJET_WLI_02_STR-KURST sy-vline 
WA_FACV_RJET_WLI_02_STR-N_OCCUR_DAY_TYPE sy-vline 
WA_FACV_RJET_WLI_02_STR-N_END_BY_TYPE sy-vline 
WA_FACV_RJET_WLI_02_STR-N_RECURRENCE_TYPE sy-vline 
WA_FACV_RJET_WLI_02_STR-N_OCCUR_DAY sy-vline 
WA_FACV_RJET_WLI_02_STR-TAX_OF_BSET_FWSTE sy-vline 
WA_FACV_RJET_WLI_02_STR-TAX_OF_BSET_HWSTE sy-vline 
WA_FACV_RJET_WLI_02_STR-MONTHDAY sy-vline 
WA_FACV_RJET_WLI_02_STR-WEEKDAY sy-vline 
WA_FACV_RJET_WLI_02_STR-FISCALPERIODDAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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