ABAP Select data from SAP table OIRECH_ALL_N into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIRECH_ALL_N
*  INTO TABLE @DATA(IT_OIRECH_ALL_N2).
*--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_OIRECH_ALL_N INDEX 1 INTO DATA(WA_OIRECH_ALL_N2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIRECH_ALL_N>-MANDT = 1.
<OIRECH_ALL_N>-CHOBJ = 1.
<OIRECH_ALL_N>-KTOPL = 1.
<OIRECH_ALL_N>-BUKRS = 1.
<OIRECH_ALL_N>-HKONT_V = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIRECH_ALL_N-HKONT_N, sy-vline,
  WA_OIRECH_ALL_N-ADRNR, sy-vline,
  WA_OIRECH_ALL_N-CHSMS, sy-vline,
  WA_OIRECH_ALL_N-KSCYC, sy-vline,
  WA_OIRECH_ALL_N-CYCBADI, sy-vline,
  WA_OIRECH_ALL_N-INVMETH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIRECH_ALL_N 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_OIRECH_ALL_N 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_OIRECH_ALL_N INTO WA_OIRECH_ALL_N.


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

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

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

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

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

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

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

*Conversion exit MATN5, internal->external for field FEEMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_OIRECH_ALL_N-FEEMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRECH_ALL_N-FEEMATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN5, internal->external for field DISCMATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_OIRECH_ALL_N-DISCMATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRECH_ALL_N-DISCMATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field DISCMATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_OIRECH_ALL_N-DISCMATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIRECH_ALL_N-DISCMATNR_LONG.
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_OIRECH_ALL_N_STR, 
MANDT TYPE STRING,
CHOBJ TYPE STRING,
KTOPL TYPE STRING,
BUKRS TYPE STRING,
HKONT_V TYPE STRING,
HKONT_N TYPE STRING,
ADRNR TYPE STRING,
CHSMS TYPE STRING,
KSCYC TYPE STRING,
CYCBADI TYPE STRING,
INVMETH TYPE STRING,
FNSET TYPE STRING,
RFCSET TYPE STRING,
KONDT TYPE STRING,
OCMID1 TYPE STRING,
OCMID2 TYPE STRING,
OCMID3 TYPE STRING,
OCMID4 TYPE STRING,
OCMTX TYPE STRING,
AUGLV TYPE STRING,
NUMRI TYPE STRING,
NUMRE TYPE STRING,
NUMRI_TRNSM TYPE STRING,
CONVGR TYPE STRING,
LOGSYS TYPE STRING,
HKONT_W TYPE STRING,
KUNNR TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
BLART TYPE STRING,
SDDOCCHK TYPE STRING,
CODISTCHK TYPE STRING,
FIDOCCHK TYPE STRING,
FEEMATNR TYPE STRING,
DISCMATNR TYPE STRING,
MATCH_PARMS TYPE STRING,
MATCH_KEYNO TYPE STRING,
DESCR_REC TYPE STRING,
DIFFTOL_BADI TYPE STRING,
RECON_BADI TYPE STRING,
RECCAL TYPE STRING,
RECCAL_BADI TYPE STRING,
KONWA_TR TYPE STRING,
KURST_TR TYPE STRING,
COMPRES TYPE STRING,
DET_AGG_IND TYPE STRING,
KONWA_FI TYPE STRING,
KURST_FI TYPE STRING,
FEEMATNR_LONG TYPE STRING,
DISCMATNR_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIRECH_ALL_N_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_OIRECH_ALL_N_STR-MANDT sy-vline 
WA_OIRECH_ALL_N_STR-CHOBJ sy-vline 
WA_OIRECH_ALL_N_STR-KTOPL sy-vline 
WA_OIRECH_ALL_N_STR-BUKRS sy-vline 
WA_OIRECH_ALL_N_STR-HKONT_V sy-vline 
WA_OIRECH_ALL_N_STR-HKONT_N sy-vline 
WA_OIRECH_ALL_N_STR-ADRNR sy-vline 
WA_OIRECH_ALL_N_STR-CHSMS sy-vline 
WA_OIRECH_ALL_N_STR-KSCYC sy-vline 
WA_OIRECH_ALL_N_STR-CYCBADI sy-vline 
WA_OIRECH_ALL_N_STR-INVMETH sy-vline 
WA_OIRECH_ALL_N_STR-FNSET sy-vline 
WA_OIRECH_ALL_N_STR-RFCSET sy-vline 
WA_OIRECH_ALL_N_STR-KONDT sy-vline 
WA_OIRECH_ALL_N_STR-OCMID1 sy-vline 
WA_OIRECH_ALL_N_STR-OCMID2 sy-vline 
WA_OIRECH_ALL_N_STR-OCMID3 sy-vline 
WA_OIRECH_ALL_N_STR-OCMID4 sy-vline 
WA_OIRECH_ALL_N_STR-OCMTX sy-vline 
WA_OIRECH_ALL_N_STR-AUGLV sy-vline 
WA_OIRECH_ALL_N_STR-NUMRI sy-vline 
WA_OIRECH_ALL_N_STR-NUMRE sy-vline 
WA_OIRECH_ALL_N_STR-NUMRI_TRNSM sy-vline 
WA_OIRECH_ALL_N_STR-CONVGR sy-vline 
WA_OIRECH_ALL_N_STR-LOGSYS sy-vline 
WA_OIRECH_ALL_N_STR-HKONT_W sy-vline 
WA_OIRECH_ALL_N_STR-KUNNR sy-vline 
WA_OIRECH_ALL_N_STR-VKORG sy-vline 
WA_OIRECH_ALL_N_STR-VTWEG sy-vline 
WA_OIRECH_ALL_N_STR-SPART sy-vline 
WA_OIRECH_ALL_N_STR-KOKRS sy-vline 
WA_OIRECH_ALL_N_STR-KOSTL sy-vline 
WA_OIRECH_ALL_N_STR-BLART sy-vline 
WA_OIRECH_ALL_N_STR-SDDOCCHK sy-vline 
WA_OIRECH_ALL_N_STR-CODISTCHK sy-vline 
WA_OIRECH_ALL_N_STR-FIDOCCHK sy-vline 
WA_OIRECH_ALL_N_STR-FEEMATNR sy-vline 
WA_OIRECH_ALL_N_STR-DISCMATNR sy-vline 
WA_OIRECH_ALL_N_STR-MATCH_PARMS sy-vline 
WA_OIRECH_ALL_N_STR-MATCH_KEYNO sy-vline 
WA_OIRECH_ALL_N_STR-DESCR_REC sy-vline 
WA_OIRECH_ALL_N_STR-DIFFTOL_BADI sy-vline 
WA_OIRECH_ALL_N_STR-RECON_BADI sy-vline 
WA_OIRECH_ALL_N_STR-RECCAL sy-vline 
WA_OIRECH_ALL_N_STR-RECCAL_BADI sy-vline 
WA_OIRECH_ALL_N_STR-KONWA_TR sy-vline 
WA_OIRECH_ALL_N_STR-KURST_TR sy-vline 
WA_OIRECH_ALL_N_STR-COMPRES sy-vline 
WA_OIRECH_ALL_N_STR-DET_AGG_IND sy-vline 
WA_OIRECH_ALL_N_STR-KONWA_FI sy-vline 
WA_OIRECH_ALL_N_STR-KURST_FI sy-vline 
WA_OIRECH_ALL_N_STR-FEEMATNR_LONG sy-vline 
WA_OIRECH_ALL_N_STR-DISCMATNR_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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