ABAP Select data from SAP table RLREPROC_ITEM_DB_VAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLREPROC_ITEM_DB_VAL
*  INTO TABLE @DATA(IT_RLREPROC_ITEM_DB_VAL2).
*--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_RLREPROC_ITEM_DB_VAL INDEX 1 INTO DATA(WA_RLREPROC_ITEM_DB_VAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLREPROC_ITEM_DB_VAL>-S = 1.
<RLREPROC_ITEM_DB_VAL>-MANDT = 1.
<RLREPROC_ITEM_DB_VAL>-REPROCNO = 1.
<RLREPROC_ITEM_DB_VAL>-COUNTER = 1.
<RLREPROC_ITEM_DB_VAL>-ACCTPTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLREPROC_ITEM_DB_VAL-BUKRS, sy-vline,
  WA_RLREPROC_ITEM_DB_VAL-PARTNER_TYPE_L, sy-vline,
  WA_RLREPROC_ITEM_DB_VAL-PARTNER_NO_L, sy-vline,
  WA_RLREPROC_ITEM_DB_VAL-PARTNER_NO_EXT_L, sy-vline,
  WA_RLREPROC_ITEM_DB_VAL-PARTNER_TYPE_E, sy-vline,
  WA_RLREPROC_ITEM_DB_VAL-PARTNER_NO_E, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLREPROC_ITEM_DB_VAL 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_RLREPROC_ITEM_DB_VAL 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_RLREPROC_ITEM_DB_VAL INTO WA_RLREPROC_ITEM_DB_VAL.


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

*Conversion exit ALPHA, internal->external for field ACCTNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLREPROC_ITEM_DB_VAL-ACCTNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLREPROC_ITEM_DB_VAL-ACCTNO.
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_RLREPROC_ITEM_DB_VAL_STR, 
S TYPE STRING,
MANDT TYPE STRING,
REPROCNO TYPE STRING,
COUNTER TYPE STRING,
ACCTPTY TYPE STRING,
BUKRS TYPE STRING,
PARTNER_TYPE_L TYPE STRING,
PARTNER_NO_L TYPE STRING,
PARTNER_NO_EXT_L TYPE STRING,
PARTNER_TYPE_E TYPE STRING,
PARTNER_NO_E TYPE STRING,
PARTNER_NO_EXT_E TYPE STRING,
ACCTNO TYPE STRING,
ACCTNO_EXT TYPE STRING,
MOVDATE TYPE STRING,
MOVTIME TYPE STRING,
TZONE TYPE STRING,
RPHD_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLREPROC_ITEM_DB_VAL_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_RLREPROC_ITEM_DB_VAL_STR-S sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-MANDT sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-REPROCNO sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-COUNTER sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-ACCTPTY sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-BUKRS sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-PARTNER_TYPE_L sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-PARTNER_NO_L sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-PARTNER_NO_EXT_L sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-PARTNER_TYPE_E sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-PARTNER_NO_E sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-PARTNER_NO_EXT_E sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-ACCTNO sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-ACCTNO_EXT sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-MOVDATE sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-MOVTIME sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-TZONE sy-vline 
WA_RLREPROC_ITEM_DB_VAL_STR-RPHD_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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