ABAP Select data from SAP table OIJRRA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJRRA
*  INTO TABLE @DATA(IT_OIJRRA2).
*--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_OIJRRA INDEX 1 INTO DATA(WA_OIJRRA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJRRA>-MANDT = 1.
<OIJRRA>-KUNNR = 1.
<OIJRRA>-LIFNR = 1.
<OIJRRA>-WERK = 1.
<OIJRRA>-LGORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJRRA-RTYPE, sy-vline,
  WA_OIJRRA-RDIFF, sy-vline,
  WA_OIJRRA-RPART, sy-vline,
  WA_OIJRRA-CPARID, sy-vline,
  WA_OIJRRA-PARNM, sy-vline,
  WA_OIJRRA-TSYST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJRRA 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_OIJRRA 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_OIJRRA INTO WA_OIJRRA.


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

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

*Conversion exit ALPHA, internal->external for field CPARID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJRRA-CPARID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJRRA-CPARID.
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_OIJRRA_STR, 
MANDT TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
WERK TYPE STRING,
LGORT TYPE STRING,
RTYPE TYPE STRING,
RDIFF TYPE STRING,
RPART TYPE STRING,
CPARID TYPE STRING,
PARNM TYPE STRING,
TSYST TYPE STRING,
LOCID TYPE STRING,
RULEID TYPE STRING,
TSPARID 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_OIJRRA_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_OIJRRA_STR-MANDT sy-vline 
WA_OIJRRA_STR-KUNNR sy-vline 
WA_OIJRRA_STR-LIFNR sy-vline 
WA_OIJRRA_STR-WERK sy-vline 
WA_OIJRRA_STR-LGORT sy-vline 
WA_OIJRRA_STR-RTYPE sy-vline 
WA_OIJRRA_STR-RDIFF sy-vline 
WA_OIJRRA_STR-RPART sy-vline 
WA_OIJRRA_STR-CPARID sy-vline 
WA_OIJRRA_STR-PARNM sy-vline 
WA_OIJRRA_STR-TSYST sy-vline 
WA_OIJRRA_STR-LOCID sy-vline 
WA_OIJRRA_STR-RULEID sy-vline 
WA_OIJRRA_STR-TSPARID sy-vline 
WA_OIJRRA_STR-ERDAT sy-vline 
WA_OIJRRA_STR-ERZEIT sy-vline 
WA_OIJRRA_STR-ERNAM sy-vline 
WA_OIJRRA_STR-AEDAT sy-vline 
WA_OIJRRA_STR-AEZEIT sy-vline 
WA_OIJRRA_STR-AENAM sy-vline 
WA_OIJRRA_STR-BLOIND sy-vline 
WA_OIJRRA_STR-DELIND sy-vline 
WA_OIJRRA_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.