ABAP Select data from SAP table RJYCIC_MSDITEMDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJYCIC_MSDITEMDATA
*  INTO TABLE @DATA(IT_RJYCIC_MSDITEMDATA2).
*--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_RJYCIC_MSDITEMDATA INDEX 1 INTO DATA(WA_RJYCIC_MSDITEMDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJYCIC_MSDITEMDATA>-VBELN = 1.
<RJYCIC_MSDITEMDATA>-POSEX = 1.
<RJYCIC_MSDITEMDATA>-POSNR = 1.
<RJYCIC_MSDITEMDATA>-GUELTIGVON = 1.
<RJYCIC_MSDITEMDATA>-GUELTIGBIS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJYCIC_MSDITEMDATA-POART, sy-vline,
  WA_RJYCIC_MSDITEMDATA-AEART, sy-vline,
  WA_RJYCIC_MSDITEMDATA-DRERZ, sy-vline,
  WA_RJYCIC_MSDITEMDATA-PVA, sy-vline,
  WA_RJYCIC_MSDITEMDATA-BEZUGSTYP, sy-vline,
  WA_RJYCIC_MSDITEMDATA-LIEFERART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJYCIC_MSDITEMDATA 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_RJYCIC_MSDITEMDATA 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_RJYCIC_MSDITEMDATA INTO WA_RJYCIC_MSDITEMDATA.


*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_RJYCIC_MSDITEMDATA-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJYCIC_MSDITEMDATA-VBELN.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field DELIVSPLIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJYCIC_MSDITEMDATA-DELIVSPLIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJYCIC_MSDITEMDATA-DELIVSPLIT.
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_RJYCIC_MSDITEMDATA_STR, 
VBELN TYPE STRING,
POSEX TYPE STRING,
POSNR TYPE STRING,
GUELTIGVON TYPE STRING,
GUELTIGBIS TYPE STRING,
POART TYPE STRING,
AEART TYPE STRING,
DRERZ TYPE STRING,
PVA TYPE STRING,
BEZUGSTYP TYPE STRING,
LIEFERART TYPE STRING,
POSNR_UR TYPE STRING,
POSNR_VG TYPE STRING,
DELIVSPLIT TYPE STRING,
POSNR_MAIN TYPE STRING,
POSNR_SUB TYPE STRING,
BEZPER TYPE STRING,
VBTYP TYPE STRING,
AUART TYPE STRING,
AUARTGRP TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
CHANGE_DATE TYPE STRING,
JPARVWTAB TYPE STRING,
REKLTYP TYPE STRING,
REKLDATUM TYPE STRING,
POSNR_REF TYPE STRING,
XSTORNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJYCIC_MSDITEMDATA_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_RJYCIC_MSDITEMDATA_STR-VBELN sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSEX sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSNR sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-GUELTIGVON sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-GUELTIGBIS sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POART sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-AEART sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-DRERZ sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-PVA sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-BEZUGSTYP sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-LIEFERART sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSNR_UR sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSNR_VG sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-DELIVSPLIT sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSNR_MAIN sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSNR_SUB sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-BEZPER sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-VBTYP sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-AUART sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-AUARTGRP sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-VKORG sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-VTWEG sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-SPART sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-CHANGE_DATE sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-JPARVWTAB sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-REKLTYP sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-REKLDATUM sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-POSNR_REF sy-vline 
WA_RJYCIC_MSDITEMDATA_STR-XSTORNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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