ABAP Select data from SAP table /SCMB/RND_DISP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCMB/RND_DISP 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 /SCMB/RND_DISP. 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 /SCMB/RND_DISP 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_/SCMB/RND_DISP TYPE STANDARD TABLE OF /SCMB/RND_DISP,
      WA_/SCMB/RND_DISP TYPE /SCMB/RND_DISP,
      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: </SCMB/RND_DISP> TYPE /SCMB/RND_DISP.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCMB/RND_DISP
  INTO TABLE IT_/SCMB/RND_DISP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMB/RND_DISP
*  INTO TABLE @DATA(IT_/SCMB/RND_DISP2).
*--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_/SCMB/RND_DISP INDEX 1 INTO DATA(WA_/SCMB/RND_DISP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCMB/RND_DISP ASSIGNING </SCMB/RND_DISP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMB/RND_DISP>-RND_NEAREST = 1.
</SCMB/RND_DISP>-RND_NEAREST_PS = 1.
</SCMB/RND_DISP>-RND_DOWN = 1.
</SCMB/RND_DISP>-RND_DOWN_PS = 1.
</SCMB/RND_DISP>-RND_UP = 1.

ENDLOOP.

LOOP AT IT_/SCMB/RND_DISP INTO WA_/SCMB/RND_DISP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMB/RND_DISP-RND_UP_PS, sy-vline,
  WA_/SCMB/RND_DISP-BASE_QUAN, sy-vline,
  WA_/SCMB/RND_DISP-BASE_QUAN_PS, sy-vline,
  WA_/SCMB/RND_DISP-BASE_UNIT, sy-vline,
  WA_/SCMB/RND_DISP-BASE_UNIT_PS, sy-vline,
  WA_/SCMB/RND_DISP-MEINH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMB/RND_DISP 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_/SCMB/RND_DISP 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_/SCMB/RND_DISP INTO WA_/SCMB/RND_DISP.


*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 RND_NEAREST_PS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/RND_DISP-RND_NEAREST_PS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/RND_DISP-RND_NEAREST_PS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field BAND_DN_REL_PS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/RND_DISP-BAND_DN_REL_PS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/RND_DISP-BAND_DN_REL_PS.
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_/SCMB/RND_DISP_STR, 
RND_NEAREST TYPE STRING,
RND_NEAREST_PS TYPE STRING,
RND_DOWN TYPE STRING,
RND_DOWN_PS TYPE STRING,
RND_UP TYPE STRING,
RND_UP_PS TYPE STRING,
BASE_QUAN TYPE STRING,
BASE_QUAN_PS TYPE STRING,
BASE_UNIT TYPE STRING,
BASE_UNIT_PS TYPE STRING,
MEINH TYPE STRING,
ROUNDING_GOAL_PS TYPE STRING,
BAND_UP_REL_PS TYPE STRING,
BAND_DN_REL_PS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMB/RND_DISP_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_/SCMB/RND_DISP_STR-RND_NEAREST sy-vline 
WA_/SCMB/RND_DISP_STR-RND_NEAREST_PS sy-vline 
WA_/SCMB/RND_DISP_STR-RND_DOWN sy-vline 
WA_/SCMB/RND_DISP_STR-RND_DOWN_PS sy-vline 
WA_/SCMB/RND_DISP_STR-RND_UP sy-vline 
WA_/SCMB/RND_DISP_STR-RND_UP_PS sy-vline 
WA_/SCMB/RND_DISP_STR-BASE_QUAN sy-vline 
WA_/SCMB/RND_DISP_STR-BASE_QUAN_PS sy-vline 
WA_/SCMB/RND_DISP_STR-BASE_UNIT sy-vline 
WA_/SCMB/RND_DISP_STR-BASE_UNIT_PS sy-vline 
WA_/SCMB/RND_DISP_STR-MEINH sy-vline 
WA_/SCMB/RND_DISP_STR-ROUNDING_GOAL_PS sy-vline 
WA_/SCMB/RND_DISP_STR-BAND_UP_REL_PS sy-vline 
WA_/SCMB/RND_DISP_STR-BAND_DN_REL_PS sy-vline      INTO ld_text SEPARATED BY SPACE.

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