ABAP Select data from SAP table OIJRDIDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJRDIDOC
*  INTO TABLE @DATA(IT_OIJRDIDOC2).
*--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_OIJRDIDOC INDEX 1 INTO DATA(WA_OIJRDIDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJRDIDOC>-MANDT = 1.
<OIJRDIDOC>-TSYST = 1.
<OIJRDIDOC>-LOCID = 1.
<OIJRDIDOC>-MATNR = 1.
<OIJRDIDOC>-DATUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJRDIDOC-DOCNR, sy-vline,
  WA_OIJRDIDOC-POSNR, sy-vline,
  WA_OIJRDIDOC-LINENR, sy-vline,
  WA_OIJRDIDOC-IDOC, sy-vline,
  WA_OIJRDIDOC-NOMTK, sy-vline,
  WA_OIJRDIDOC-NOMIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJRDIDOC 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_OIJRDIDOC 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_OIJRDIDOC INTO WA_OIJRDIDOC.


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

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

*Conversion exit ALPHA, internal->external for field NOMTK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJRDIDOC-NOMTK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJRDIDOC-NOMTK.
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_OIJRDIDOC_STR, 
MANDT TYPE STRING,
TSYST TYPE STRING,
LOCID TYPE STRING,
MATNR TYPE STRING,
DATUM TYPE STRING,
DOCNR TYPE STRING,
POSNR TYPE STRING,
LINENR TYPE STRING,
IDOC TYPE STRING,
NOMTK TYPE STRING,
NOMIT TYPE STRING,
NOMNR TYPE STRING,
IUDOC TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,
BLOIND TYPE STRING,
DELIND TYPE STRING,
TKTSELECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJRDIDOC_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_OIJRDIDOC_STR-MANDT sy-vline 
WA_OIJRDIDOC_STR-TSYST sy-vline 
WA_OIJRDIDOC_STR-LOCID sy-vline 
WA_OIJRDIDOC_STR-MATNR sy-vline 
WA_OIJRDIDOC_STR-DATUM sy-vline 
WA_OIJRDIDOC_STR-DOCNR sy-vline 
WA_OIJRDIDOC_STR-POSNR sy-vline 
WA_OIJRDIDOC_STR-LINENR sy-vline 
WA_OIJRDIDOC_STR-IDOC sy-vline 
WA_OIJRDIDOC_STR-NOMTK sy-vline 
WA_OIJRDIDOC_STR-NOMIT sy-vline 
WA_OIJRDIDOC_STR-NOMNR sy-vline 
WA_OIJRDIDOC_STR-IUDOC sy-vline 
WA_OIJRDIDOC_STR-ERDAT sy-vline 
WA_OIJRDIDOC_STR-ERZEIT sy-vline 
WA_OIJRDIDOC_STR-ERNAM sy-vline 
WA_OIJRDIDOC_STR-AEDAT sy-vline 
WA_OIJRDIDOC_STR-AEZEIT sy-vline 
WA_OIJRDIDOC_STR-AENAM sy-vline 
WA_OIJRDIDOC_STR-BLOIND sy-vline 
WA_OIJRDIDOC_STR-DELIND sy-vline 
WA_OIJRDIDOC_STR-TKTSELECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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