ABAP Select data from SAP table RN1_GRID_OUTTAB_ME_SLDOSE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1_GRID_OUTTAB_ME_SLDOSE 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 RN1_GRID_OUTTAB_ME_SLDOSE. 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 RN1_GRID_OUTTAB_ME_SLDOSE 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_RN1_GRID_OUTTAB_ME_SLDOSE TYPE STANDARD TABLE OF RN1_GRID_OUTTAB_ME_SLDOSE,
      WA_RN1_GRID_OUTTAB_ME_SLDOSE TYPE RN1_GRID_OUTTAB_ME_SLDOSE,
      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: <RN1_GRID_OUTTAB_ME_SLDOSE> TYPE RN1_GRID_OUTTAB_ME_SLDOSE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1_GRID_OUTTAB_ME_SLDOSE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1_GRID_OUTTAB_ME_SLDOSE
  INTO TABLE IT_RN1_GRID_OUTTAB_ME_SLDOSE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1_GRID_OUTTAB_ME_SLDOSE
*  INTO TABLE @DATA(IT_RN1_GRID_OUTTAB_ME_SLDOSE2).
*--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_RN1_GRID_OUTTAB_ME_SLDOSE INDEX 1 INTO DATA(WA_RN1_GRID_OUTTAB_ME_SLDOSE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1_GRID_OUTTAB_ME_SLDOSE ASSIGNING <RN1_GRID_OUTTAB_ME_SLDOSE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1_GRID_OUTTAB_ME_SLDOSE>-SLDOSE_REF = 1.
<RN1_GRID_OUTTAB_ME_SLDOSE>-ROW_ID = 1.
<RN1_GRID_OUTTAB_ME_SLDOSE>-SEQID = 1.
<RN1_GRID_OUTTAB_ME_SLDOSE>-DOSE = 1.
<RN1_GRID_OUTTAB_ME_SLDOSE>-DOSEU = 1.

ENDLOOP.

LOOP AT IT_RN1_GRID_OUTTAB_ME_SLDOSE INTO WA_RN1_GRID_OUTTAB_ME_SLDOSE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1_GRID_OUTTAB_ME_SLDOSE-UNIT_COMP, sy-vline,
  WA_RN1_GRID_OUTTAB_ME_SLDOSE-DOSTY_BUT, sy-vline,
  WA_RN1_GRID_OUTTAB_ME_SLDOSE-DOSTY_BUTOBJ, sy-vline,
  WA_RN1_GRID_OUTTAB_ME_SLDOSE-CYCLE, sy-vline,
  WA_RN1_GRID_OUTTAB_ME_SLDOSE-DURATION, sy-vline,
  WA_RN1_GRID_OUTTAB_ME_SLDOSE-DURU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1_GRID_OUTTAB_ME_SLDOSE 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_RN1_GRID_OUTTAB_ME_SLDOSE 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_RN1_GRID_OUTTAB_ME_SLDOSE INTO WA_RN1_GRID_OUTTAB_ME_SLDOSE.


*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 DOSE
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_GRID_OUTTAB_ME_SLDOSE-DOSE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_GRID_OUTTAB_ME_SLDOSE-DOSE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CYCLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_GRID_OUTTAB_ME_SLDOSE-CYCLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_GRID_OUTTAB_ME_SLDOSE-CYCLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MEQUA, internal->external for field DURATION
CALL FUNCTION 'CONVERSION_EXIT_MEQUA_OUTPUT'
  EXPORTING
    input =                      WA_RN1_GRID_OUTTAB_ME_SLDOSE-DURATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_GRID_OUTTAB_ME_SLDOSE-DURATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ME12D, internal->external for field PDUR
CALL FUNCTION 'CONVERSION_EXIT_ME12D_OUTPUT'
  EXPORTING
    input =                      WA_RN1_GRID_OUTTAB_ME_SLDOSE-PDUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1_GRID_OUTTAB_ME_SLDOSE-PDUR.
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_RN1_GRID_OUTTAB_ME_SLDOSE_STR, 
SLDOSE_REF TYPE STRING,
ROW_ID TYPE STRING,
SEQID TYPE STRING,
DOSE TYPE STRING,
DOSEU TYPE STRING,
UNIT_COMP TYPE STRING,
DOSTY_BUT TYPE STRING,
DOSTY_BUTOBJ TYPE STRING,
CYCLE TYPE STRING,
DURATION TYPE STRING,
DURU TYPE STRING,
BEGDAT TYPE STRING,
ENDDAT TYPE STRING,
BEGTIM TYPE STRING,
ENDTIM TYPE STRING,
STARTDAY TYPE STRING,
ENDDAY TYPE STRING,
ZNR TYPE STRING,
STRGTHDOS TYPE STRING,
DOSE_Q TYPE STRING,
CALC_BUT TYPE STRING,
DC_USED TYPE STRING,
CALC_BUTOBJ TYPE STRING,
PDUR TYPE STRING,
PDURU TYPE STRING,
CELLSTYLE TYPE STRING,
DRAGDROP TYPE STRING,
IS_CHANGED TYPE STRING,
IS_EMPTY TYPE STRING,
IS_NEW TYPE STRING,
FILTERMARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1_GRID_OUTTAB_ME_SLDOSE_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_RN1_GRID_OUTTAB_ME_SLDOSE_STR-SLDOSE_REF sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-ROW_ID sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-SEQID sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DOSE sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DOSEU sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-UNIT_COMP sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DOSTY_BUT sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DOSTY_BUTOBJ sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-CYCLE sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DURATION sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DURU sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-BEGDAT sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-ENDDAT sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-BEGTIM sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-ENDTIM sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-STARTDAY sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-ENDDAY sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-ZNR sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-STRGTHDOS sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DOSE_Q sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-CALC_BUT sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DC_USED sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-CALC_BUTOBJ sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-PDUR sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-PDURU sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-CELLSTYLE sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-DRAGDROP sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-IS_CHANGED sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-IS_EMPTY sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-IS_NEW sy-vline 
WA_RN1_GRID_OUTTAB_ME_SLDOSE_STR-FILTERMARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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