ABAP Select data from SAP table CUCO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CUCO
*  INTO TABLE @DATA(IT_CUCO2).
*--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_CUCO INDEX 1 INTO DATA(WA_CUCO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CUCO>-MANDT = 1.
<CUCO>-OBTAB = 1.
<CUCO>-OBJEK = 1.
<CUCO>-ZAEHL = 1.
<CUCO>-KLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CUCO-CLINT, sy-vline,
  WA_CUCO-SICHT, sy-vline,
  WA_CUCO-CONAU, sy-vline,
  WA_CUCO-STLDY, sy-vline,
  WA_CUCO-STLKD, sy-vline,
  WA_CUCO-APLDY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CUCO 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_CUCO 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_CUCO INTO WA_CUCO.


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

*Conversion exit ISOLA, internal->external for field A_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CUCO-A_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUCO-A_LANGU.
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_CUCO_STR, 
MANDT TYPE STRING,
OBTAB TYPE STRING,
OBJEK TYPE STRING,
ZAEHL TYPE STRING,
KLART TYPE STRING,
CLINT TYPE STRING,
SICHT TYPE STRING,
CONAU TYPE STRING,
STLDY TYPE STRING,
STLKD TYPE STRING,
APLDY TYPE STRING,
APLKD TYPE STRING,
STATUS TYPE STRING,
ERSDT TYPE STRING,
ERSNU TYPE STRING,
AEDAT TYPE STRING,
AESBN TYPE STRING,
DATUV TYPE STRING,
DATUB TYPE STRING,
AENNR TYPE STRING,
CLOGO TYPE STRING,
KNOBJ TYPE STRING,
STLBD TYPE STRING,
STLOV TYPE STRING,
STLRS TYPE STRING,
MONTF TYPE STRING,
KDSET TYPE STRING,
PRRES TYPE STRING,
MATRS TYPE STRING,
CBAUG TYPE STRING,
VVIEW TYPE STRING,
KZLOE TYPE STRING,
DVDAT TYPE STRING,
DVNAM TYPE STRING,
APIDS TYPE STRING,
APIDB TYPE STRING,
PRFID TYPE STRING,
BESKZ TYPE STRING,
VALEV TYPE STRING,
DESIGN TYPE STRING,
NEUTR TYPE STRING,
LCHAR TYPE STRING,
LVALU TYPE STRING,
A_LANGU TYPE STRING,
MEMUS TYPE STRING,
MEOPT TYPE STRING,
MEMIT TYPE STRING,
MEOHN TYPE STRING,
MEMAS TYPE STRING,
DOBJD TYPE STRING,
DMRKM TYPE STRING,
DMWRT TYPE STRING,
DPAGE TYPE STRING,
DMABW TYPE STRING,
PRSAN TYPE STRING,
PRSPE TYPE STRING,
CONFA TYPE STRING,
CONFI TYPE STRING,
CONFS TYPE STRING,
DVRST TYPE STRING,
DVSET TYPE STRING,
DVMAR TYPE STRING,
DVUEB TYPE STRING,
DVBST TYPE STRING,
MVANF TYPE STRING,
MVPER TYPE STRING,
NOMVF TYPE STRING,
MWVOR TYPE STRING,
MWVAT TYPE STRING,
MWVAV TYPE STRING,
KNOBJ_PRE TYPE STRING,
FIX_ENTRY TYPE STRING,
FIX_TOPDOWN TYPE STRING,
FIX_BOTTOMUP TYPE STRING,
INST_ENTRY TYPE STRING,
INST_TOPDOWN TYPE STRING,
INST_BOTTOMUP TYPE STRING,
EOASL TYPE STRING,
SAASL TYPE STRING,
SINGLE TYPE STRING,
MONTE TYPE STRING,
CAREREL TYPE STRING,
IMBEZ TYPE STRING,
UBEZW TYPE STRING,
UKNOT TYPE STRING,
UCMPF TYPE STRING,
DMSTU TYPE STRING,
DSTRU TYPE STRING,
DPSEU TYPE STRING,
IMBEW TYPE STRING,
OBJ_MAT TYPE STRING,
OBJ_DOCUMENT TYPE STRING,
OBJ_CLASS TYPE STRING,
OBJ_TEXT TYPE STRING,
FL_SDREL TYPE STRING,
FL_KOREL TYPE STRING,
FL_FEREL TYPE STRING,
FL_INREL TYPE STRING,
FL_KAREL TYPE STRING,
POSTYPEN TYPE STRING,
SORTF1 TYPE STRING,
SORTF2 TYPE STRING,
SORTF3 TYPE STRING,
SORTF4 TYPE STRING,
SORTF5 TYPE STRING,
CLASSF1 TYPE STRING,
CLASSF2 TYPE STRING,
CLASSF3 TYPE STRING,
CLASSF4 TYPE STRING,
CLASSF5 TYPE STRING,
TYPST TYPE STRING,
TYPSK TYPE STRING,
PRIO TYPE STRING,
PRSTL TYPE STRING,
UMBEW TYPE STRING,
KZ_BROWSER TYPE STRING,
FL_PROF_OBOM TYPE STRING,
PROC_MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CUCO_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_CUCO_STR-MANDT sy-vline 
WA_CUCO_STR-OBTAB sy-vline 
WA_CUCO_STR-OBJEK sy-vline 
WA_CUCO_STR-ZAEHL sy-vline 
WA_CUCO_STR-KLART sy-vline 
WA_CUCO_STR-CLINT sy-vline 
WA_CUCO_STR-SICHT sy-vline 
WA_CUCO_STR-CONAU sy-vline 
WA_CUCO_STR-STLDY sy-vline 
WA_CUCO_STR-STLKD sy-vline 
WA_CUCO_STR-APLDY sy-vline 
WA_CUCO_STR-APLKD sy-vline 
WA_CUCO_STR-STATUS sy-vline 
WA_CUCO_STR-ERSDT sy-vline 
WA_CUCO_STR-ERSNU sy-vline 
WA_CUCO_STR-AEDAT sy-vline 
WA_CUCO_STR-AESBN sy-vline 
WA_CUCO_STR-DATUV sy-vline 
WA_CUCO_STR-DATUB sy-vline 
WA_CUCO_STR-AENNR sy-vline 
WA_CUCO_STR-CLOGO sy-vline 
WA_CUCO_STR-KNOBJ sy-vline 
WA_CUCO_STR-STLBD sy-vline 
WA_CUCO_STR-STLOV sy-vline 
WA_CUCO_STR-STLRS sy-vline 
WA_CUCO_STR-MONTF sy-vline 
WA_CUCO_STR-KDSET sy-vline 
WA_CUCO_STR-PRRES sy-vline 
WA_CUCO_STR-MATRS sy-vline 
WA_CUCO_STR-CBAUG sy-vline 
WA_CUCO_STR-VVIEW sy-vline 
WA_CUCO_STR-KZLOE sy-vline 
WA_CUCO_STR-DVDAT sy-vline 
WA_CUCO_STR-DVNAM sy-vline 
WA_CUCO_STR-APIDS sy-vline 
WA_CUCO_STR-APIDB sy-vline 
WA_CUCO_STR-PRFID sy-vline 
WA_CUCO_STR-BESKZ sy-vline 
WA_CUCO_STR-VALEV sy-vline 
WA_CUCO_STR-DESIGN sy-vline 
WA_CUCO_STR-NEUTR sy-vline 
WA_CUCO_STR-LCHAR sy-vline 
WA_CUCO_STR-LVALU sy-vline 
WA_CUCO_STR-A_LANGU sy-vline 
WA_CUCO_STR-MEMUS sy-vline 
WA_CUCO_STR-MEOPT sy-vline 
WA_CUCO_STR-MEMIT sy-vline 
WA_CUCO_STR-MEOHN sy-vline 
WA_CUCO_STR-MEMAS sy-vline 
WA_CUCO_STR-DOBJD sy-vline 
WA_CUCO_STR-DMRKM sy-vline 
WA_CUCO_STR-DMWRT sy-vline 
WA_CUCO_STR-DPAGE sy-vline 
WA_CUCO_STR-DMABW sy-vline 
WA_CUCO_STR-PRSAN sy-vline 
WA_CUCO_STR-PRSPE sy-vline 
WA_CUCO_STR-CONFA sy-vline 
WA_CUCO_STR-CONFI sy-vline 
WA_CUCO_STR-CONFS sy-vline 
WA_CUCO_STR-DVRST sy-vline 
WA_CUCO_STR-DVSET sy-vline 
WA_CUCO_STR-DVMAR sy-vline 
WA_CUCO_STR-DVUEB sy-vline 
WA_CUCO_STR-DVBST sy-vline 
WA_CUCO_STR-MVANF sy-vline 
WA_CUCO_STR-MVPER sy-vline 
WA_CUCO_STR-NOMVF sy-vline 
WA_CUCO_STR-MWVOR sy-vline 
WA_CUCO_STR-MWVAT sy-vline 
WA_CUCO_STR-MWVAV sy-vline 
WA_CUCO_STR-KNOBJ_PRE sy-vline 
WA_CUCO_STR-FIX_ENTRY sy-vline 
WA_CUCO_STR-FIX_TOPDOWN sy-vline 
WA_CUCO_STR-FIX_BOTTOMUP sy-vline 
WA_CUCO_STR-INST_ENTRY sy-vline 
WA_CUCO_STR-INST_TOPDOWN sy-vline 
WA_CUCO_STR-INST_BOTTOMUP sy-vline 
WA_CUCO_STR-EOASL sy-vline 
WA_CUCO_STR-SAASL sy-vline 
WA_CUCO_STR-SINGLE sy-vline 
WA_CUCO_STR-MONTE sy-vline 
WA_CUCO_STR-CAREREL sy-vline 
WA_CUCO_STR-IMBEZ sy-vline 
WA_CUCO_STR-UBEZW sy-vline 
WA_CUCO_STR-UKNOT sy-vline 
WA_CUCO_STR-UCMPF sy-vline 
WA_CUCO_STR-DMSTU sy-vline 
WA_CUCO_STR-DSTRU sy-vline 
WA_CUCO_STR-DPSEU sy-vline 
WA_CUCO_STR-IMBEW sy-vline 
WA_CUCO_STR-OBJ_MAT sy-vline 
WA_CUCO_STR-OBJ_DOCUMENT sy-vline 
WA_CUCO_STR-OBJ_CLASS sy-vline 
WA_CUCO_STR-OBJ_TEXT sy-vline 
WA_CUCO_STR-FL_SDREL sy-vline 
WA_CUCO_STR-FL_KOREL sy-vline 
WA_CUCO_STR-FL_FEREL sy-vline 
WA_CUCO_STR-FL_INREL sy-vline 
WA_CUCO_STR-FL_KAREL sy-vline 
WA_CUCO_STR-POSTYPEN sy-vline 
WA_CUCO_STR-SORTF1 sy-vline 
WA_CUCO_STR-SORTF2 sy-vline 
WA_CUCO_STR-SORTF3 sy-vline 
WA_CUCO_STR-SORTF4 sy-vline 
WA_CUCO_STR-SORTF5 sy-vline 
WA_CUCO_STR-CLASSF1 sy-vline 
WA_CUCO_STR-CLASSF2 sy-vline 
WA_CUCO_STR-CLASSF3 sy-vline 
WA_CUCO_STR-CLASSF4 sy-vline 
WA_CUCO_STR-CLASSF5 sy-vline 
WA_CUCO_STR-TYPST sy-vline 
WA_CUCO_STR-TYPSK sy-vline 
WA_CUCO_STR-PRIO sy-vline 
WA_CUCO_STR-PRSTL sy-vline 
WA_CUCO_STR-UMBEW sy-vline 
WA_CUCO_STR-KZ_BROWSER sy-vline 
WA_CUCO_STR-FL_PROF_OBOM sy-vline 
WA_CUCO_STR-PROC_MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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