ABAP Select data from SAP table RJKSDISSFORECPLAN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDISSFORECPLAN
*  INTO TABLE @DATA(IT_RJKSDISSFORECPLAN2).
*--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_RJKSDISSFORECPLAN INDEX 1 INTO DATA(WA_RJKSDISSFORECPLAN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDISSFORECPLAN>-PLANORG = 1.
<RJKSDISSFORECPLAN>-AREA = 1.
<RJKSDISSFORECPLAN>-VARIANT_ID = 1.
<RJKSDISSFORECPLAN>-SEGMENT = 1.
<RJKSDISSFORECPLAN>-ISSUE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDISSFORECPLAN-MED_PROD, sy-vline,
  WA_RJKSDISSFORECPLAN-MDPRFAM, sy-vline,
  WA_RJKSDISSFORECPLAN-ISMPUBLDATE, sy-vline,
  WA_RJKSDISSFORECPLAN-ISMCOPYNR, sy-vline,
  WA_RJKSDISSFORECPLAN-VERSION, sy-vline,
  WA_RJKSDISSFORECPLAN-PLANVARIANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDISSFORECPLAN 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_RJKSDISSFORECPLAN 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_RJKSDISSFORECPLAN INTO WA_RJKSDISSFORECPLAN.


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

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

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

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

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDISSFORECPLAN-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDISSFORECPLAN-UNIT.
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_RJKSDISSFORECPLAN_STR, 
PLANORG TYPE STRING,
AREA TYPE STRING,
VARIANT_ID TYPE STRING,
SEGMENT TYPE STRING,
ISSUE TYPE STRING,
MED_PROD TYPE STRING,
MDPRFAM TYPE STRING,
ISMPUBLDATE TYPE STRING,
ISMCOPYNR TYPE STRING,
VERSION TYPE STRING,
PLANVARIANT TYPE STRING,
XACTIVE TYPE STRING,
VIEW_ID TYPE STRING,
SCHEME TYPE STRING,
QUANTITY1 TYPE STRING,
QUANTITY2 TYPE STRING,
QUANTITY3 TYPE STRING,
QUANTITY4 TYPE STRING,
QUANTITY5 TYPE STRING,
QUANTITY6 TYPE STRING,
QUANTITY7 TYPE STRING,
SOLD_QUAN TYPE STRING,
UNIT TYPE STRING,
DEMANDQUANTITY1 TYPE STRING,
DEMANDQUANTITY2 TYPE STRING,
DEMANDQUANTITY3 TYPE STRING,
DEMANDQUANTITY4 TYPE STRING,
DEMANDQUANTITY5 TYPE STRING,
FIELDNAME1 TYPE STRING,
FIELDNAME2 TYPE STRING,
FIELDNAME3 TYPE STRING,
FIELDNAME4 TYPE STRING,
FIELDNAME5 TYPE STRING,
X_NO_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDISSFORECPLAN_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_RJKSDISSFORECPLAN_STR-PLANORG sy-vline 
WA_RJKSDISSFORECPLAN_STR-AREA sy-vline 
WA_RJKSDISSFORECPLAN_STR-VARIANT_ID sy-vline 
WA_RJKSDISSFORECPLAN_STR-SEGMENT sy-vline 
WA_RJKSDISSFORECPLAN_STR-ISSUE sy-vline 
WA_RJKSDISSFORECPLAN_STR-MED_PROD sy-vline 
WA_RJKSDISSFORECPLAN_STR-MDPRFAM sy-vline 
WA_RJKSDISSFORECPLAN_STR-ISMPUBLDATE sy-vline 
WA_RJKSDISSFORECPLAN_STR-ISMCOPYNR sy-vline 
WA_RJKSDISSFORECPLAN_STR-VERSION sy-vline 
WA_RJKSDISSFORECPLAN_STR-PLANVARIANT sy-vline 
WA_RJKSDISSFORECPLAN_STR-XACTIVE sy-vline 
WA_RJKSDISSFORECPLAN_STR-VIEW_ID sy-vline 
WA_RJKSDISSFORECPLAN_STR-SCHEME sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY1 sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY2 sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY3 sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY4 sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY5 sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY6 sy-vline 
WA_RJKSDISSFORECPLAN_STR-QUANTITY7 sy-vline 
WA_RJKSDISSFORECPLAN_STR-SOLD_QUAN sy-vline 
WA_RJKSDISSFORECPLAN_STR-UNIT sy-vline 
WA_RJKSDISSFORECPLAN_STR-DEMANDQUANTITY1 sy-vline 
WA_RJKSDISSFORECPLAN_STR-DEMANDQUANTITY2 sy-vline 
WA_RJKSDISSFORECPLAN_STR-DEMANDQUANTITY3 sy-vline 
WA_RJKSDISSFORECPLAN_STR-DEMANDQUANTITY4 sy-vline 
WA_RJKSDISSFORECPLAN_STR-DEMANDQUANTITY5 sy-vline 
WA_RJKSDISSFORECPLAN_STR-FIELDNAME1 sy-vline 
WA_RJKSDISSFORECPLAN_STR-FIELDNAME2 sy-vline 
WA_RJKSDISSFORECPLAN_STR-FIELDNAME3 sy-vline 
WA_RJKSDISSFORECPLAN_STR-FIELDNAME4 sy-vline 
WA_RJKSDISSFORECPLAN_STR-FIELDNAME5 sy-vline 
WA_RJKSDISSFORECPLAN_STR-X_NO_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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