ABAP Select data from SAP table OIA_XZCXCF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIA_XZCXCF
*  INTO TABLE @DATA(IT_OIA_XZCXCF2).
*--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_OIA_XZCXCF INDEX 1 INTO DATA(WA_OIA_XZCXCF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIA_XZCXCF>-CURTP = 1.
<OIA_XZCXCF>-KNUMV = 1.
<OIA_XZCXCF>-KPOSN = 1.
<OIA_XZCXCF>-STUNR = 1.
<OIA_XZCXCF>-ZAEHK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIA_XZCXCF-XAUTO, sy-vline,
  WA_OIA_XZCXCF-OIDMBTR, sy-vline,
  WA_OIA_XZCXCF-SHKZG, sy-vline,
  WA_OIA_XZCXCF-OIWRBTR, sy-vline,
  WA_OIA_XZCXCF-WAERS, sy-vline,
  WA_OIA_XZCXCF-VORSL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIA_XZCXCF 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_OIA_XZCXCF 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_OIA_XZCXCF INTO WA_OIA_XZCXCF.


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

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIA_XZCXCF-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIA_XZCXCF-KOSTL.
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_OIA_XZCXCF_STR, 
CURTP TYPE STRING,
KNUMV TYPE STRING,
KPOSN TYPE STRING,
STUNR TYPE STRING,
ZAEHK TYPE STRING,
XAUTO TYPE STRING,
OIDMBTR TYPE STRING,
SHKZG TYPE STRING,
OIWRBTR TYPE STRING,
WAERS TYPE STRING,
VORSL TYPE STRING,
BUSTW TYPE STRING,
HKONT TYPE STRING,
KOSTL TYPE STRING,
ACPOL TYPE STRING,
BSCHL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIA_XZCXCF_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_OIA_XZCXCF_STR-CURTP sy-vline 
WA_OIA_XZCXCF_STR-KNUMV sy-vline 
WA_OIA_XZCXCF_STR-KPOSN sy-vline 
WA_OIA_XZCXCF_STR-STUNR sy-vline 
WA_OIA_XZCXCF_STR-ZAEHK sy-vline 
WA_OIA_XZCXCF_STR-XAUTO sy-vline 
WA_OIA_XZCXCF_STR-OIDMBTR sy-vline 
WA_OIA_XZCXCF_STR-SHKZG sy-vline 
WA_OIA_XZCXCF_STR-OIWRBTR sy-vline 
WA_OIA_XZCXCF_STR-WAERS sy-vline 
WA_OIA_XZCXCF_STR-VORSL sy-vline 
WA_OIA_XZCXCF_STR-BUSTW sy-vline 
WA_OIA_XZCXCF_STR-HKONT sy-vline 
WA_OIA_XZCXCF_STR-KOSTL sy-vline 
WA_OIA_XZCXCF_STR-ACPOL sy-vline 
WA_OIA_XZCXCF_STR-BSCHL sy-vline      INTO ld_text SEPARATED BY SPACE.

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