ABAP Select data from SAP table RJKSDDEMAND_SEL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJKSDDEMAND_SEL
*  INTO TABLE @DATA(IT_RJKSDDEMAND_SEL2).
*--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_RJKSDDEMAND_SEL INDEX 1 INTO DATA(WA_RJKSDDEMAND_SEL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJKSDDEMAND_SEL>-VERSION = 1.
<RJKSDDEMAND_SEL>-VBELN = 1.
<RJKSDDEMAND_SEL>-POSNR = 1.
<RJKSDDEMAND_SEL>-VKORG = 1.
<RJKSDDEMAND_SEL>-VTWEG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJKSDDEMAND_SEL-SPART, sy-vline,
  WA_RJKSDDEMAND_SEL-VKBUR, sy-vline,
  WA_RJKSDDEMAND_SEL-VKGRP, sy-vline,
  WA_RJKSDDEMAND_SEL-MEDIAPRODUCTFAM, sy-vline,
  WA_RJKSDDEMAND_SEL-MEDIAPRODUCT, sy-vline,
  WA_RJKSDDEMAND_SEL-DATE_FROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJKSDDEMAND_SEL 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_RJKSDDEMAND_SEL 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_RJKSDDEMAND_SEL INTO WA_RJKSDDEMAND_SEL.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDDEMAND_SEL-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDDEMAND_SEL-PARVW.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_RJKSDDEMAND_SEL-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJKSDDEMAND_SEL-AUART.
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_RJKSDDEMAND_SEL_STR, 
VERSION TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
MEDIAPRODUCTFAM TYPE STRING,
MEDIAPRODUCT TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
ISSUE_FROM TYPE STRING,
ISSUE_TO TYPE STRING,
COPYNR_FROM TYPE STRING,
COPYNR_TO TYPE STRING,
KUNNR_WE TYPE STRING,
NAMEKURZ TYPE STRING,
LINEK TYPE STRING,
PHASEMDL TYPE STRING,
PHASENBR TYPE STRING,
ISSUE TYPE STRING,
WEEKP_LINE TYPE STRING,
WEEKN_LINE TYPE STRING,
XQUAN_EXTERNAL TYPE STRING,
MEDIAPRODUCT_FROM TYPE STRING,
MEDIAPRODUCT_TO TYPE STRING,
X_SELECT_BP TYPE STRING,
X_SELECT_PRODUCT TYPE STRING,
VAR_VTXT TYPE STRING,
KDGRP TYPE STRING,
KVGR1 TYPE STRING,
KVGR2 TYPE STRING,
KVGR3 TYPE STRING,
KVGR4 TYPE STRING,
KVGR5 TYPE STRING,
LZONE TYPE STRING,
LAND1 TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
EVKSTART TYPE STRING,
EVKSTBEZ TYPE STRING,
ISMGEOKATEGORIE TYPE STRING,
GPNR TYPE STRING,
PARVW TYPE STRING,
ISMPERRULE TYPE STRING,
MATKL TYPE STRING,
AUART TYPE STRING,
XSHOWCANCEL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJKSDDEMAND_SEL_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_RJKSDDEMAND_SEL_STR-VERSION sy-vline 
WA_RJKSDDEMAND_SEL_STR-VBELN sy-vline 
WA_RJKSDDEMAND_SEL_STR-POSNR sy-vline 
WA_RJKSDDEMAND_SEL_STR-VKORG sy-vline 
WA_RJKSDDEMAND_SEL_STR-VTWEG sy-vline 
WA_RJKSDDEMAND_SEL_STR-SPART sy-vline 
WA_RJKSDDEMAND_SEL_STR-VKBUR sy-vline 
WA_RJKSDDEMAND_SEL_STR-VKGRP sy-vline 
WA_RJKSDDEMAND_SEL_STR-MEDIAPRODUCTFAM sy-vline 
WA_RJKSDDEMAND_SEL_STR-MEDIAPRODUCT sy-vline 
WA_RJKSDDEMAND_SEL_STR-DATE_FROM sy-vline 
WA_RJKSDDEMAND_SEL_STR-DATE_TO sy-vline 
WA_RJKSDDEMAND_SEL_STR-ISSUE_FROM sy-vline 
WA_RJKSDDEMAND_SEL_STR-ISSUE_TO sy-vline 
WA_RJKSDDEMAND_SEL_STR-COPYNR_FROM sy-vline 
WA_RJKSDDEMAND_SEL_STR-COPYNR_TO sy-vline 
WA_RJKSDDEMAND_SEL_STR-KUNNR_WE sy-vline 
WA_RJKSDDEMAND_SEL_STR-NAMEKURZ sy-vline 
WA_RJKSDDEMAND_SEL_STR-LINEK sy-vline 
WA_RJKSDDEMAND_SEL_STR-PHASEMDL sy-vline 
WA_RJKSDDEMAND_SEL_STR-PHASENBR sy-vline 
WA_RJKSDDEMAND_SEL_STR-ISSUE sy-vline 
WA_RJKSDDEMAND_SEL_STR-WEEKP_LINE sy-vline 
WA_RJKSDDEMAND_SEL_STR-WEEKN_LINE sy-vline 
WA_RJKSDDEMAND_SEL_STR-XQUAN_EXTERNAL sy-vline 
WA_RJKSDDEMAND_SEL_STR-MEDIAPRODUCT_FROM sy-vline 
WA_RJKSDDEMAND_SEL_STR-MEDIAPRODUCT_TO sy-vline 
WA_RJKSDDEMAND_SEL_STR-X_SELECT_BP sy-vline 
WA_RJKSDDEMAND_SEL_STR-X_SELECT_PRODUCT sy-vline 
WA_RJKSDDEMAND_SEL_STR-VAR_VTXT sy-vline 
WA_RJKSDDEMAND_SEL_STR-KDGRP sy-vline 
WA_RJKSDDEMAND_SEL_STR-KVGR1 sy-vline 
WA_RJKSDDEMAND_SEL_STR-KVGR2 sy-vline 
WA_RJKSDDEMAND_SEL_STR-KVGR3 sy-vline 
WA_RJKSDDEMAND_SEL_STR-KVGR4 sy-vline 
WA_RJKSDDEMAND_SEL_STR-KVGR5 sy-vline 
WA_RJKSDDEMAND_SEL_STR-LZONE sy-vline 
WA_RJKSDDEMAND_SEL_STR-LAND1 sy-vline 
WA_RJKSDDEMAND_SEL_STR-PSTLZ sy-vline 
WA_RJKSDDEMAND_SEL_STR-ORT01 sy-vline 
WA_RJKSDDEMAND_SEL_STR-EVKSTART sy-vline 
WA_RJKSDDEMAND_SEL_STR-EVKSTBEZ sy-vline 
WA_RJKSDDEMAND_SEL_STR-ISMGEOKATEGORIE sy-vline 
WA_RJKSDDEMAND_SEL_STR-GPNR sy-vline 
WA_RJKSDDEMAND_SEL_STR-PARVW sy-vline 
WA_RJKSDDEMAND_SEL_STR-ISMPERRULE sy-vline 
WA_RJKSDDEMAND_SEL_STR-MATKL sy-vline 
WA_RJKSDDEMAND_SEL_STR-AUART sy-vline 
WA_RJKSDDEMAND_SEL_STR-XSHOWCANCEL sy-vline      INTO ld_text SEPARATED BY SPACE.

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