ABAP Select data from SAP table REXCITICI_C into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCITICI_C
*  INTO TABLE @DATA(IT_REXCITICI_C2).
*--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_REXCITICI_C INDEX 1 INTO DATA(WA_REXCITICI_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCITICI_C>-ACCNO = 1.
<REXCITICI_C>-ICICOLLECTOR = 1.
<REXCITICI_C>-BUKRS = 1.
<REXCITICI_C>-BUTXT = 1.
<REXCITICI_C>-ORT01 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCITICI_C-STCEG, sy-vline,
  WA_REXCITICI_C-CITY, sy-vline,
  WA_REXCITICI_C-STREET, sy-vline,
  WA_REXCITICI_C-HOUSE_NUM, sy-vline,
  WA_REXCITICI_C-ICIACC, sy-vline,
  WA_REXCITICI_C-ICIACCTA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCITICI_C 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_REXCITICI_C 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_REXCITICI_C INTO WA_REXCITICI_C.


*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 FISCYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_REXCITICI_C-FISCYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCITICI_C-FISCYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AOFUNCTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REXCITICI_C-AOFUNCTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCITICI_C-AOFUNCTION.
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_REXCITICI_C_STR, 
ACCNO TYPE STRING,
ICICOLLECTOR TYPE STRING,
BUKRS TYPE STRING,
BUTXT TYPE STRING,
ORT01 TYPE STRING,
STCEG TYPE STRING,
CITY TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM TYPE STRING,
ICIACC TYPE STRING,
ICIACCTA TYPE STRING,
ICIACCAF TYPE STRING,
ICIACCOTH TYPE STRING,
CURRENCY TYPE STRING,
UNITNUM TYPE STRING,
FISCYEAR TYPE STRING,
ISINSTPRI TYPE STRING,
CITYCODE TYPE STRING,
ADMINDIVISION TYPE STRING,
CENSUSDIVISION TYPE STRING,
CITYDIVISION TYPE STRING,
SHEET TYPE STRING,
PARCEL TYPE STRING,
QUALITY TYPE STRING,
DENOMINATOR TYPE STRING,
SUBALTERN TYPE STRING,
CLASS TYPE STRING,
UIUOBJNR TYPE STRING,
UIUINTRENO TYPE STRING,
ORIGAOID TYPE STRING,
DERIVAOID TYPE STRING,
AUTHGRP TYPE STRING,
DOORPLT TYPE STRING,
AOTYPE TYPE STRING,
AOFUNCTION TYPE STRING,
CITYNAME TYPE STRING,
REGION TYPE STRING,
ORIGXAO TYPE STRING,
DERIVXAO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCITICI_C_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_REXCITICI_C_STR-ACCNO sy-vline 
WA_REXCITICI_C_STR-ICICOLLECTOR sy-vline 
WA_REXCITICI_C_STR-BUKRS sy-vline 
WA_REXCITICI_C_STR-BUTXT sy-vline 
WA_REXCITICI_C_STR-ORT01 sy-vline 
WA_REXCITICI_C_STR-STCEG sy-vline 
WA_REXCITICI_C_STR-CITY sy-vline 
WA_REXCITICI_C_STR-STREET sy-vline 
WA_REXCITICI_C_STR-HOUSE_NUM sy-vline 
WA_REXCITICI_C_STR-ICIACC sy-vline 
WA_REXCITICI_C_STR-ICIACCTA sy-vline 
WA_REXCITICI_C_STR-ICIACCAF sy-vline 
WA_REXCITICI_C_STR-ICIACCOTH sy-vline 
WA_REXCITICI_C_STR-CURRENCY sy-vline 
WA_REXCITICI_C_STR-UNITNUM sy-vline 
WA_REXCITICI_C_STR-FISCYEAR sy-vline 
WA_REXCITICI_C_STR-ISINSTPRI sy-vline 
WA_REXCITICI_C_STR-CITYCODE sy-vline 
WA_REXCITICI_C_STR-ADMINDIVISION sy-vline 
WA_REXCITICI_C_STR-CENSUSDIVISION sy-vline 
WA_REXCITICI_C_STR-CITYDIVISION sy-vline 
WA_REXCITICI_C_STR-SHEET sy-vline 
WA_REXCITICI_C_STR-PARCEL sy-vline 
WA_REXCITICI_C_STR-QUALITY sy-vline 
WA_REXCITICI_C_STR-DENOMINATOR sy-vline 
WA_REXCITICI_C_STR-SUBALTERN sy-vline 
WA_REXCITICI_C_STR-CLASS sy-vline 
WA_REXCITICI_C_STR-UIUOBJNR sy-vline 
WA_REXCITICI_C_STR-UIUINTRENO sy-vline 
WA_REXCITICI_C_STR-ORIGAOID sy-vline 
WA_REXCITICI_C_STR-DERIVAOID sy-vline 
WA_REXCITICI_C_STR-AUTHGRP sy-vline 
WA_REXCITICI_C_STR-DOORPLT sy-vline 
WA_REXCITICI_C_STR-AOTYPE sy-vline 
WA_REXCITICI_C_STR-AOFUNCTION sy-vline 
WA_REXCITICI_C_STR-CITYNAME sy-vline 
WA_REXCITICI_C_STR-REGION sy-vline 
WA_REXCITICI_C_STR-ORIGXAO sy-vline 
WA_REXCITICI_C_STR-DERIVXAO sy-vline      INTO ld_text SEPARATED BY SPACE.

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