ABAP Select data from SAP table CESTP_KENC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CESTP_KENC
*  INTO TABLE @DATA(IT_CESTP_KENC2).
*--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_CESTP_KENC INDEX 1 INTO DATA(WA_CESTP_KENC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CESTP_KENC>-MANDT = 1.
<CESTP_KENC>-CHGRUN = 1.
<CESTP_KENC>-BELNR = 1.
<CESTP_KENC>-POSNR = 1.
<CESTP_KENC>-SUBNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CESTP_KENC-BUKRS, sy-vline,
  WA_CESTP_KENC-KOKRS, sy-vline,
  WA_CESTP_KENC-WERKS, sy-vline,
  WA_CESTP_KENC-GSBER, sy-vline,
  WA_CESTP_KENC-FKBER, sy-vline,
  WA_CESTP_KENC-SEGMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CESTP_KENC 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_CESTP_KENC 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_CESTP_KENC INTO WA_CESTP_KENC.


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

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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field ARTNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CESTP_KENC-ARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CESTP_KENC-ARTNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PSPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CESTP_KENC-PSPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CESTP_KENC-PSPNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VTKEY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CESTP_KENC-VTKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CESTP_KENC-VTKEY.
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_CESTP_KENC_STR, 
MANDT TYPE STRING,
CHGRUN TYPE STRING,
BELNR TYPE STRING,
POSNR TYPE STRING,
SUBNR TYPE STRING,
BUKRS TYPE STRING,
KOKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
FKBER TYPE STRING,
SEGMENT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
SKOST TYPE STRING,
PRZNR TYPE STRING,
COPA_KOSTL TYPE STRING,
KNDNR TYPE STRING,
ARTNR TYPE STRING,
KSTRG TYPE STRING,
PSPNR TYPE STRING,
FKART TYPE STRING,
KAUFN TYPE STRING,
KDPOS TYPE STRING,
AUFNR TYPE STRING,
LIEFNR TYPE STRING,
LIEFPOS TYPE STRING,
SERVICE_DOC_TYPE TYPE STRING,
SERVICE_DOC_ID TYPE STRING,
SERVICE_DOC_ITEM_ID TYPE STRING,
SOLUTION_ORDER_ID TYPE STRING,
SOLUTION_ORDER_ITEM_ID TYPE STRING,
VTKEY TYPE STRING,
VTPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CESTP_KENC_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_CESTP_KENC_STR-MANDT sy-vline 
WA_CESTP_KENC_STR-CHGRUN sy-vline 
WA_CESTP_KENC_STR-BELNR sy-vline 
WA_CESTP_KENC_STR-POSNR sy-vline 
WA_CESTP_KENC_STR-SUBNR sy-vline 
WA_CESTP_KENC_STR-BUKRS sy-vline 
WA_CESTP_KENC_STR-KOKRS sy-vline 
WA_CESTP_KENC_STR-WERKS sy-vline 
WA_CESTP_KENC_STR-GSBER sy-vline 
WA_CESTP_KENC_STR-FKBER sy-vline 
WA_CESTP_KENC_STR-SEGMENT sy-vline 
WA_CESTP_KENC_STR-VKORG sy-vline 
WA_CESTP_KENC_STR-VTWEG sy-vline 
WA_CESTP_KENC_STR-SPART sy-vline 
WA_CESTP_KENC_STR-PRCTR sy-vline 
WA_CESTP_KENC_STR-PPRCTR sy-vline 
WA_CESTP_KENC_STR-SKOST sy-vline 
WA_CESTP_KENC_STR-PRZNR sy-vline 
WA_CESTP_KENC_STR-COPA_KOSTL sy-vline 
WA_CESTP_KENC_STR-KNDNR sy-vline 
WA_CESTP_KENC_STR-ARTNR sy-vline 
WA_CESTP_KENC_STR-KSTRG sy-vline 
WA_CESTP_KENC_STR-PSPNR sy-vline 
WA_CESTP_KENC_STR-FKART sy-vline 
WA_CESTP_KENC_STR-KAUFN sy-vline 
WA_CESTP_KENC_STR-KDPOS sy-vline 
WA_CESTP_KENC_STR-AUFNR sy-vline 
WA_CESTP_KENC_STR-LIEFNR sy-vline 
WA_CESTP_KENC_STR-LIEFPOS sy-vline 
WA_CESTP_KENC_STR-SERVICE_DOC_TYPE sy-vline 
WA_CESTP_KENC_STR-SERVICE_DOC_ID sy-vline 
WA_CESTP_KENC_STR-SERVICE_DOC_ITEM_ID sy-vline 
WA_CESTP_KENC_STR-SOLUTION_ORDER_ID sy-vline 
WA_CESTP_KENC_STR-SOLUTION_ORDER_ITEM_ID sy-vline 
WA_CESTP_KENC_STR-VTKEY sy-vline 
WA_CESTP_KENC_STR-VTPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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