ABAP Select data from SAP table RLT10030 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RLT10030 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 RLT10030. 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 RLT10030 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_RLT10030 TYPE STANDARD TABLE OF RLT10030,
      WA_RLT10030 TYPE RLT10030,
      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: <RLT10030> TYPE RLT10030.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RLT10030.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RLT10030
  INTO TABLE IT_RLT10030.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLT10030
*  INTO TABLE @DATA(IT_RLT100302).
*--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_RLT10030 INDEX 1 INTO DATA(WA_RLT100302).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RLT10030 ASSIGNING <RLT10030>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLT10030>-TANUM = 1.
<RLT10030>-TAPOS = 1.
<RLT10030>-MATNR = 1.
<RLT10030>-WERKS = 1.
<RLT10030>-CHARG = 1.

ENDLOOP.

LOOP AT IT_RLT10030 INTO WA_RLT10030.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLT10030-BESTQ, sy-vline,
  WA_RLT10030-SOBKZ, sy-vline,
  WA_RLT10030-SONUM, sy-vline,
  WA_RLT10030-VLTYP, sy-vline,
  WA_RLT10030-VLPLA, sy-vline,
  WA_RLT10030-VSOLA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLT10030 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_RLT10030 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_RLT10030 INTO WA_RLT10030.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RLT10030-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLT10030-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SONUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLT10030-SONUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLT10030-SONUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ALTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RLT10030-ALTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLT10030-ALTME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IVNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLT10030-IVNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLT10030-IVNUM.
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_RLT10030_STR, 
TANUM TYPE STRING,
TAPOS TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
CHARG TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
VLTYP TYPE STRING,
VLPLA TYPE STRING,
VSOLA TYPE STRING,
VISTA TYPE STRING,
NLTYP TYPE STRING,
NLPLA TYPE STRING,
NSOLA TYPE STRING,
NISTA TYPE STRING,
RLTYP TYPE STRING,
RLPLA TYPE STRING,
RSOLA TYPE STRING,
RISTA TYPE STRING,
ALTME TYPE STRING,
PQUIT TYPE STRING,
MAKTX TYPE STRING,
KZINV TYPE STRING,
KZDIF TYPE STRING,
IVNUM TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLT10030_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_RLT10030_STR-TANUM sy-vline 
WA_RLT10030_STR-TAPOS sy-vline 
WA_RLT10030_STR-MATNR sy-vline 
WA_RLT10030_STR-WERKS sy-vline 
WA_RLT10030_STR-CHARG sy-vline 
WA_RLT10030_STR-BESTQ sy-vline 
WA_RLT10030_STR-SOBKZ sy-vline 
WA_RLT10030_STR-SONUM sy-vline 
WA_RLT10030_STR-VLTYP sy-vline 
WA_RLT10030_STR-VLPLA sy-vline 
WA_RLT10030_STR-VSOLA sy-vline 
WA_RLT10030_STR-VISTA sy-vline 
WA_RLT10030_STR-NLTYP sy-vline 
WA_RLT10030_STR-NLPLA sy-vline 
WA_RLT10030_STR-NSOLA sy-vline 
WA_RLT10030_STR-NISTA sy-vline 
WA_RLT10030_STR-RLTYP sy-vline 
WA_RLT10030_STR-RLPLA sy-vline 
WA_RLT10030_STR-RSOLA sy-vline 
WA_RLT10030_STR-RISTA sy-vline 
WA_RLT10030_STR-ALTME sy-vline 
WA_RLT10030_STR-PQUIT sy-vline 
WA_RLT10030_STR-MAKTX sy-vline 
WA_RLT10030_STR-KZINV sy-vline 
WA_RLT10030_STR-KZDIF sy-vline 
WA_RLT10030_STR-IVNUM sy-vline 
WA_RLT10030_STR-TEXT1 sy-vline 
WA_RLT10030_STR-TEXT2 sy-vline 
WA_RLT10030_STR-TEXT3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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