ABAP Select data from SAP table RN1ME_DYN_ORATE_VOL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1ME_DYN_ORATE_VOL 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 RN1ME_DYN_ORATE_VOL. 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 RN1ME_DYN_ORATE_VOL 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_RN1ME_DYN_ORATE_VOL TYPE STANDARD TABLE OF RN1ME_DYN_ORATE_VOL,
      WA_RN1ME_DYN_ORATE_VOL TYPE RN1ME_DYN_ORATE_VOL,
      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: <RN1ME_DYN_ORATE_VOL> TYPE RN1ME_DYN_ORATE_VOL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1ME_DYN_ORATE_VOL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1ME_DYN_ORATE_VOL
  INTO TABLE IT_RN1ME_DYN_ORATE_VOL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1ME_DYN_ORATE_VOL
*  INTO TABLE @DATA(IT_RN1ME_DYN_ORATE_VOL2).
*--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_RN1ME_DYN_ORATE_VOL INDEX 1 INTO DATA(WA_RN1ME_DYN_ORATE_VOL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1ME_DYN_ORATE_VOL ASSIGNING <RN1ME_DYN_ORATE_VOL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1ME_DYN_ORATE_VOL>-RECAA = 1.
<RN1ME_DYN_ORATE_VOL>-RECU = 1.
<RN1ME_DYN_ORATE_VOL>-PDUR = 1.
<RN1ME_DYN_ORATE_VOL>-PDURU = 1.
<RN1ME_DYN_ORATE_VOL>-DOSE = 1.

ENDLOOP.

LOOP AT IT_RN1ME_DYN_ORATE_VOL INTO WA_RN1ME_DYN_ORATE_VOL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1ME_DYN_ORATE_VOL-DOSEU, sy-vline,
  WA_RN1ME_DYN_ORATE_VOL-DESCRST, sy-vline,
  WA_RN1ME_DYN_ORATE_VOL-RECALC, sy-vline,
  WA_RN1ME_DYN_ORATE_VOL-PRNCSTX, sy-vline,
  WA_RN1ME_DYN_ORATE_VOL-PRNCLTX, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_RN1ME_DYN_ORATE_VOL 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_RN1ME_DYN_ORATE_VOL 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_RN1ME_DYN_ORATE_VOL INTO WA_RN1ME_DYN_ORATE_VOL.


*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 MEQUA, internal->external for field RECAA
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_ORATE_VOL-RECAA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_ORATE_VOL-RECAA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field PDUR
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_ORATE_VOL-PDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_ORATE_VOL-PDUR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field DOSE
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1ME_DYN_ORATE_VOL-DOSE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1ME_DYN_ORATE_VOL-DOSE.
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_RN1ME_DYN_ORATE_VOL_STR, 
RECAA TYPE STRING,
RECU TYPE STRING,
PDUR TYPE STRING,
PDURU TYPE STRING,
DOSE TYPE STRING,
DOSEU TYPE STRING,
DESCRST TYPE STRING,
RECALC TYPE STRING,
PRNCSTX TYPE STRING,
PRNCLTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1ME_DYN_ORATE_VOL_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_RN1ME_DYN_ORATE_VOL_STR-RECAA sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-RECU sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-PDUR sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-PDURU sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-DOSE sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-DOSEU sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-DESCRST sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-RECALC sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-PRNCSTX sy-vline 
WA_RN1ME_DYN_ORATE_VOL_STR-PRNCLTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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