ABAP Select data from SAP table OIRADTLT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIRADTLT
*  INTO TABLE @DATA(IT_OIRADTLT2).
*--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_OIRADTLT INDEX 1 INTO DATA(WA_OIRADTLT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIRADTLT>-MANDT = 1.
<OIRADTLT>-LINKNR = 1.
<OIRADTLT>-ITLINKNR = 1.
<OIRADTLT>-LINKYEAR = 1.
<OIRADTLT>-DOCTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIRADTLT-DOCYEAR, sy-vline,
  WA_OIRADTLT-DOCNR, sy-vline,
  WA_OIRADTLT-POSNR, sy-vline,
  WA_OIRADTLT-SRCETAB, sy-vline,
  WA_OIRADTLT-DOCDATE, sy-vline,
  WA_OIRADTLT-TARGETTAB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIRADTLT 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_OIRADTLT 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_OIRADTLT INTO WA_OIRADTLT.


*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 GJAHR, internal->external for field LINKYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIRADTLT-LINKYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRADTLT-LINKYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field DOCYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_OIRADTLT-DOCYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRADTLT-DOCYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIRADTLT-DOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRADTLT-DOCNR.
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_OIRADTLT_STR, 
MANDT TYPE STRING,
LINKNR TYPE STRING,
ITLINKNR TYPE STRING,
LINKYEAR TYPE STRING,
DOCTYPE TYPE STRING,
DOCYEAR TYPE STRING,
DOCNR TYPE STRING,
POSNR TYPE STRING,
SRCETAB TYPE STRING,
DOCDATE TYPE STRING,
TARGETTAB TYPE STRING,
COUNTER TYPE STRING,
PROCDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIRADTLT_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_OIRADTLT_STR-MANDT sy-vline 
WA_OIRADTLT_STR-LINKNR sy-vline 
WA_OIRADTLT_STR-ITLINKNR sy-vline 
WA_OIRADTLT_STR-LINKYEAR sy-vline 
WA_OIRADTLT_STR-DOCTYPE sy-vline 
WA_OIRADTLT_STR-DOCYEAR sy-vline 
WA_OIRADTLT_STR-DOCNR sy-vline 
WA_OIRADTLT_STR-POSNR sy-vline 
WA_OIRADTLT_STR-SRCETAB sy-vline 
WA_OIRADTLT_STR-DOCDATE sy-vline 
WA_OIRADTLT_STR-TARGETTAB sy-vline 
WA_OIRADTLT_STR-COUNTER sy-vline 
WA_OIRADTLT_STR-PROCDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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