ABAP Select data from SAP table CRCO_DXI01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRCO_DXI01 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 CRCO_DXI01. 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 CRCO_DXI01 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_CRCO_DXI01 TYPE STANDARD TABLE OF CRCO_DXI01,
      WA_CRCO_DXI01 TYPE CRCO_DXI01,
      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: <CRCO_DXI01> TYPE CRCO_DXI01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRCO_DXI01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRCO_DXI01
  INTO TABLE IT_CRCO_DXI01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRCO_DXI01
*  INTO TABLE @DATA(IT_CRCO_DXI012).
*--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_CRCO_DXI01 INDEX 1 INTO DATA(WA_CRCO_DXI012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRCO_DXI01 ASSIGNING <CRCO_DXI01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRCO_DXI01>-TYPE = 1.
<CRCO_DXI01>-KOSTL = 1.
<CRCO_DXI01>-BEGDA = 1.
<CRCO_DXI01>-ENDDA = 1.
<CRCO_DXI01>-LSTAR1 = 1.

ENDLOOP.

LOOP AT IT_CRCO_DXI01 INTO WA_CRCO_DXI01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRCO_DXI01-LSTAR_REF1, sy-vline,
  WA_CRCO_DXI01-FORML1, sy-vline,
  WA_CRCO_DXI01-LSTAR2, sy-vline,
  WA_CRCO_DXI01-LSTAR_REF2, sy-vline,
  WA_CRCO_DXI01-FORML2, sy-vline,
  WA_CRCO_DXI01-LSTAR3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRCO_DXI01 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_CRCO_DXI01 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_CRCO_DXI01 INTO WA_CRCO_DXI01.


*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 KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZ01
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-PRZ01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-PRZ01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEINH1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-LEINH1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-LEINH1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEINH2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-LEINH2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-LEINH2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEINH3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-LEINH3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-LEINH3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEINH4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-LEINH4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-LEINH4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEINH5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-LEINH5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-LEINH5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LEINH6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRCO_DXI01-LEINH6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRCO_DXI01-LEINH6.
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_CRCO_DXI01_STR, 
TYPE TYPE STRING,
KOSTL TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
LSTAR1 TYPE STRING,
LSTAR_REF1 TYPE STRING,
FORML1 TYPE STRING,
LSTAR2 TYPE STRING,
LSTAR_REF2 TYPE STRING,
FORML2 TYPE STRING,
LSTAR3 TYPE STRING,
LSTAR_REF3 TYPE STRING,
FORML3 TYPE STRING,
LSTAR4 TYPE STRING,
LSTAR_REF4 TYPE STRING,
FORML4 TYPE STRING,
LSTAR5 TYPE STRING,
LSTAR_REF5 TYPE STRING,
FORML5 TYPE STRING,
LSTAR6 TYPE STRING,
LSTAR_REF6 TYPE STRING,
FORML6 TYPE STRING,
LSTARN TYPE STRING,
LSTAR_REFN TYPE STRING,
FORMLN TYPE STRING,
PRZ01 TYPE STRING,
PRZ01_REF TYPE STRING,
FORP1 TYPE STRING,
ACTXY1 TYPE STRING,
ACTXK1 TYPE STRING,
LEINH1 TYPE STRING,
BDE1 TYPE STRING,
SAKL1 TYPE STRING,
ACTXY2 TYPE STRING,
ACTXK2 TYPE STRING,
LEINH2 TYPE STRING,
BDE2 TYPE STRING,
SAKL2 TYPE STRING,
ACTXY3 TYPE STRING,
ACTXK3 TYPE STRING,
LEINH3 TYPE STRING,
BDE3 TYPE STRING,
SAKL3 TYPE STRING,
ACTXY4 TYPE STRING,
ACTXK4 TYPE STRING,
LEINH4 TYPE STRING,
BDE4 TYPE STRING,
SAKL4 TYPE STRING,
ACTXY5 TYPE STRING,
ACTXK5 TYPE STRING,
LEINH5 TYPE STRING,
BDE5 TYPE STRING,
SAKL5 TYPE STRING,
ACTXY6 TYPE STRING,
ACTXK6 TYPE STRING,
LEINH6 TYPE STRING,
BDE6 TYPE STRING,
SAKL6 TYPE STRING,
BDEP TYPE STRING,
SAKLP TYPE STRING,
KOKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRCO_DXI01_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_CRCO_DXI01_STR-TYPE sy-vline 
WA_CRCO_DXI01_STR-KOSTL sy-vline 
WA_CRCO_DXI01_STR-BEGDA sy-vline 
WA_CRCO_DXI01_STR-ENDDA sy-vline 
WA_CRCO_DXI01_STR-LSTAR1 sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REF1 sy-vline 
WA_CRCO_DXI01_STR-FORML1 sy-vline 
WA_CRCO_DXI01_STR-LSTAR2 sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REF2 sy-vline 
WA_CRCO_DXI01_STR-FORML2 sy-vline 
WA_CRCO_DXI01_STR-LSTAR3 sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REF3 sy-vline 
WA_CRCO_DXI01_STR-FORML3 sy-vline 
WA_CRCO_DXI01_STR-LSTAR4 sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REF4 sy-vline 
WA_CRCO_DXI01_STR-FORML4 sy-vline 
WA_CRCO_DXI01_STR-LSTAR5 sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REF5 sy-vline 
WA_CRCO_DXI01_STR-FORML5 sy-vline 
WA_CRCO_DXI01_STR-LSTAR6 sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REF6 sy-vline 
WA_CRCO_DXI01_STR-FORML6 sy-vline 
WA_CRCO_DXI01_STR-LSTARN sy-vline 
WA_CRCO_DXI01_STR-LSTAR_REFN sy-vline 
WA_CRCO_DXI01_STR-FORMLN sy-vline 
WA_CRCO_DXI01_STR-PRZ01 sy-vline 
WA_CRCO_DXI01_STR-PRZ01_REF sy-vline 
WA_CRCO_DXI01_STR-FORP1 sy-vline 
WA_CRCO_DXI01_STR-ACTXY1 sy-vline 
WA_CRCO_DXI01_STR-ACTXK1 sy-vline 
WA_CRCO_DXI01_STR-LEINH1 sy-vline 
WA_CRCO_DXI01_STR-BDE1 sy-vline 
WA_CRCO_DXI01_STR-SAKL1 sy-vline 
WA_CRCO_DXI01_STR-ACTXY2 sy-vline 
WA_CRCO_DXI01_STR-ACTXK2 sy-vline 
WA_CRCO_DXI01_STR-LEINH2 sy-vline 
WA_CRCO_DXI01_STR-BDE2 sy-vline 
WA_CRCO_DXI01_STR-SAKL2 sy-vline 
WA_CRCO_DXI01_STR-ACTXY3 sy-vline 
WA_CRCO_DXI01_STR-ACTXK3 sy-vline 
WA_CRCO_DXI01_STR-LEINH3 sy-vline 
WA_CRCO_DXI01_STR-BDE3 sy-vline 
WA_CRCO_DXI01_STR-SAKL3 sy-vline 
WA_CRCO_DXI01_STR-ACTXY4 sy-vline 
WA_CRCO_DXI01_STR-ACTXK4 sy-vline 
WA_CRCO_DXI01_STR-LEINH4 sy-vline 
WA_CRCO_DXI01_STR-BDE4 sy-vline 
WA_CRCO_DXI01_STR-SAKL4 sy-vline 
WA_CRCO_DXI01_STR-ACTXY5 sy-vline 
WA_CRCO_DXI01_STR-ACTXK5 sy-vline 
WA_CRCO_DXI01_STR-LEINH5 sy-vline 
WA_CRCO_DXI01_STR-BDE5 sy-vline 
WA_CRCO_DXI01_STR-SAKL5 sy-vline 
WA_CRCO_DXI01_STR-ACTXY6 sy-vline 
WA_CRCO_DXI01_STR-ACTXK6 sy-vline 
WA_CRCO_DXI01_STR-LEINH6 sy-vline 
WA_CRCO_DXI01_STR-BDE6 sy-vline 
WA_CRCO_DXI01_STR-SAKL6 sy-vline 
WA_CRCO_DXI01_STR-BDEP sy-vline 
WA_CRCO_DXI01_STR-SAKLP sy-vline 
WA_CRCO_DXI01_STR-KOKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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