ABAP Select data from SAP table /CEECV/RO_KNC1F into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /CEECV/RO_KNC1F 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 /CEECV/RO_KNC1F. 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 /CEECV/RO_KNC1F 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_/CEECV/RO_KNC1F TYPE STANDARD TABLE OF /CEECV/RO_KNC1F,
      WA_/CEECV/RO_KNC1F TYPE /CEECV/RO_KNC1F,
      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: </CEECV/RO_KNC1F> TYPE /CEECV/RO_KNC1F.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/CEECV/RO_KNC1F.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CEECV/RO_KNC1F
  INTO TABLE IT_/CEECV/RO_KNC1F.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CEECV/RO_KNC1F
*  INTO TABLE @DATA(IT_/CEECV/RO_KNC1F2).
*--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_/CEECV/RO_KNC1F INDEX 1 INTO DATA(WA_/CEECV/RO_KNC1F2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CEECV/RO_KNC1F ASSIGNING </CEECV/RO_KNC1F>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CEECV/RO_KNC1F>-MANDT = 1.
</CEECV/RO_KNC1F>-KUNNR = 1.
</CEECV/RO_KNC1F>-BUKRS = 1.
</CEECV/RO_KNC1F>-GJAHR = 1.
</CEECV/RO_KNC1F>-WAERS = 1.

ENDLOOP.

LOOP AT IT_/CEECV/RO_KNC1F INTO WA_/CEECV/RO_KNC1F.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CEECV/RO_KNC1F-UMSAV, sy-vline,
  WA_/CEECV/RO_KNC1F-UM01S, sy-vline,
  WA_/CEECV/RO_KNC1F-UM01H, sy-vline,
  WA_/CEECV/RO_KNC1F-UM02S, sy-vline,
  WA_/CEECV/RO_KNC1F-UM02H, sy-vline,
  WA_/CEECV/RO_KNC1F-UM03S, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CEECV/RO_KNC1F 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_/CEECV/RO_KNC1F 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_/CEECV/RO_KNC1F INTO WA_/CEECV/RO_KNC1F.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UMSAV
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UMSAV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UMSAV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM01S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM01S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM01S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM01H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM01H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM01H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM02S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM02S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM02S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM02H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM02H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM02H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM03S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM03S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM03S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM03H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM03H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM03H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM04S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM04S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM04S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM04H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM04H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM04H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM05S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM05S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM05S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM05H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM05H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM05H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM06S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM06S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM06S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM06H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM06H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM06H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM07S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM07S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM07S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM07H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM07H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM07H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM08S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM08S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM08S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM08H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM08H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM08H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM09S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM09S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM09S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM09H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM09H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM09H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM10S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM10S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM10S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM10H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM10H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM10H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM11S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM11S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM11S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM11H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM11H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM11H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM12S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM12S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM12S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM12H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM12H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM12H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM13S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM13S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM13S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM13H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM13H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM13H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM14S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM14S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM14S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM14H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM14H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM14H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM15S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM15S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM15S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM15H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM15H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM15H.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM16S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM16S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM16S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field UM16H
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_/CEECV/RO_KNC1F-UM16H
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CEECV/RO_KNC1F-UM16H.
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_/CEECV/RO_KNC1F_STR, 
MANDT TYPE STRING,
KUNNR TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
WAERS TYPE STRING,
UMSAV TYPE STRING,
UM01S TYPE STRING,
UM01H TYPE STRING,
UM02S TYPE STRING,
UM02H TYPE STRING,
UM03S TYPE STRING,
UM03H TYPE STRING,
UM04S TYPE STRING,
UM04H TYPE STRING,
UM05S TYPE STRING,
UM05H TYPE STRING,
UM06S TYPE STRING,
UM06H TYPE STRING,
UM07S TYPE STRING,
UM07H TYPE STRING,
UM08S TYPE STRING,
UM08H TYPE STRING,
UM09S TYPE STRING,
UM09H TYPE STRING,
UM10S TYPE STRING,
UM10H TYPE STRING,
UM11S TYPE STRING,
UM11H TYPE STRING,
UM12S TYPE STRING,
UM12H TYPE STRING,
UM13S TYPE STRING,
UM13H TYPE STRING,
UM14S TYPE STRING,
UM14H TYPE STRING,
UM15S TYPE STRING,
UM15H TYPE STRING,
UM16S TYPE STRING,
UM16H TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CEECV/RO_KNC1F_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_/CEECV/RO_KNC1F_STR-MANDT sy-vline 
WA_/CEECV/RO_KNC1F_STR-KUNNR sy-vline 
WA_/CEECV/RO_KNC1F_STR-BUKRS sy-vline 
WA_/CEECV/RO_KNC1F_STR-GJAHR sy-vline 
WA_/CEECV/RO_KNC1F_STR-WAERS sy-vline 
WA_/CEECV/RO_KNC1F_STR-UMSAV sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM01S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM01H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM02S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM02H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM03S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM03H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM04S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM04H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM05S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM05H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM06S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM06H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM07S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM07H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM08S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM08H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM09S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM09H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM10S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM10H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM11S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM11H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM12S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM12H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM13S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM13H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM14S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM14H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM15S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM15H sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM16S sy-vline 
WA_/CEECV/RO_KNC1F_STR-UM16H sy-vline      INTO ld_text SEPARATED BY SPACE.

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