ABAP Select data from SAP table CRNUM_KONT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRNUM_KONT
*  INTO TABLE @DATA(IT_CRNUM_KONT2).
*--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_CRNUM_KONT INDEX 1 INTO DATA(WA_CRNUM_KONT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRNUM_KONT>-GJAHR = 1.
<CRNUM_KONT>-CRLIFNR = 1.
<CRNUM_KONT>-CRMWSKZ = 1.
<CRNUM_KONT>-MWSKZ_FREE = 1.
<CRNUM_KONT>-CRTXJCD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRNUM_KONT-CALCTAX, sy-vline,
  WA_CRNUM_KONT-BUKRS, sy-vline,
  WA_CRNUM_KONT-HWAER, sy-vline,
  WA_CRNUM_KONT-FIKRS, sy-vline,
  WA_CRNUM_KONT-KOKRS, sy-vline,
  WA_CRNUM_KONT-BLART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRNUM_KONT 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_CRNUM_KONT 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_CRNUM_KONT INTO WA_CRNUM_KONT.


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

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

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

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

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

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

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_CRNUM_KONT-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRNUM_KONT-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit FMCIL, internal->external for field FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_CRNUM_KONT-FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRNUM_KONT-FIPEX.
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_CRNUM_KONT_STR, 
GJAHR TYPE STRING,
CRLIFNR TYPE STRING,
CRMWSKZ TYPE STRING,
MWSKZ_FREE TYPE STRING,
CRTXJCD TYPE STRING,
CALCTAX TYPE STRING,
BUKRS TYPE STRING,
HWAER TYPE STRING,
FIKRS TYPE STRING,
KOKRS TYPE STRING,
BLART TYPE STRING,
SAKNR TYPE STRING,
KBLNR TYPE STRING,
KBLPOS TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PERNR TYPE STRING,
LIFNR TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
GRANT_NBR TYPE STRING,
PS_PSP_PNR TYPE STRING,
NPLNR TYPE STRING,
FIPEX TYPE STRING,
BUDGET_PD TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRNUM_KONT_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_CRNUM_KONT_STR-GJAHR sy-vline 
WA_CRNUM_KONT_STR-CRLIFNR sy-vline 
WA_CRNUM_KONT_STR-CRMWSKZ sy-vline 
WA_CRNUM_KONT_STR-MWSKZ_FREE sy-vline 
WA_CRNUM_KONT_STR-CRTXJCD sy-vline 
WA_CRNUM_KONT_STR-CALCTAX sy-vline 
WA_CRNUM_KONT_STR-BUKRS sy-vline 
WA_CRNUM_KONT_STR-HWAER sy-vline 
WA_CRNUM_KONT_STR-FIKRS sy-vline 
WA_CRNUM_KONT_STR-KOKRS sy-vline 
WA_CRNUM_KONT_STR-BLART sy-vline 
WA_CRNUM_KONT_STR-SAKNR sy-vline 
WA_CRNUM_KONT_STR-KBLNR sy-vline 
WA_CRNUM_KONT_STR-KBLPOS sy-vline 
WA_CRNUM_KONT_STR-KOSTL sy-vline 
WA_CRNUM_KONT_STR-AUFNR sy-vline 
WA_CRNUM_KONT_STR-PERNR sy-vline 
WA_CRNUM_KONT_STR-LIFNR sy-vline 
WA_CRNUM_KONT_STR-FIPOS sy-vline 
WA_CRNUM_KONT_STR-FISTL sy-vline 
WA_CRNUM_KONT_STR-GEBER sy-vline 
WA_CRNUM_KONT_STR-FKBER sy-vline 
WA_CRNUM_KONT_STR-GRANT_NBR sy-vline 
WA_CRNUM_KONT_STR-PS_PSP_PNR sy-vline 
WA_CRNUM_KONT_STR-NPLNR sy-vline 
WA_CRNUM_KONT_STR-FIPEX sy-vline 
WA_CRNUM_KONT_STR-BUDGET_PD sy-vline 
WA_CRNUM_KONT_STR-DUMMY_INCL_EEW_COBL sy-vline      INTO ld_text SEPARATED BY SPACE.

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