ABAP Select data from SAP table VKKKFKO into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VKKKFKO
*  INTO TABLE @DATA(IT_VKKKFKO2).
*--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_VKKKFKO INDEX 1 INTO DATA(WA_VKKKFKO2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_VKKKFKO ASSIGNING <VKKKFKO>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<VKKKFKO>-MANDT = 1.
<VKKKFKO>-GSFNR = 1.
<VKKKFKO>-BELNR = 1.
<VKKKFKO>-ANZEP = 1.
<VKKKFKO>-BLART = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VKKKFKO-BLTYP, sy-vline,
WA_VKKKFKO-ABRZO, sy-vline,
WA_VKKKFKO-ABRZU, sy-vline,
WA_VKKKFKO-FREQZ, sy-vline,
WA_VKKKFKO-GBETR, sy-vline,
WA_VKKKFKO-GBISD, sy-vline.
ENDLOOP. *Add any further fields from structure WA_VKKKFKO 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_VKKKFKO 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_VKKKFKO INTO WA_VKKKFKO. *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 GSFNR CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VKKKFKO-GSFNR IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VKKKFKO-GSFNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field REFBL CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_VKKKFKO-REFBL IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_VKKKFKO-REFBL.
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_VKKKFKO_STR,
MANDT TYPE STRING,
GSFNR TYPE STRING,
BELNR TYPE STRING,
ANZEP TYPE STRING,
BLART TYPE STRING,
BLTYP TYPE STRING,
ABRZO TYPE STRING,
ABRZU TYPE STRING,
FREQZ TYPE STRING,
GBETR TYPE STRING,
GBISD TYPE STRING,
BUKNZ TYPE STRING,
OPBUK TYPE STRING,
HFAEL TYPE STRING,
KZSIA TYPE STRING,
KZSIP TYPE STRING,
NFAEL TYPE STRING,
GPART TYPE STRING,
RBART TYPE STRING,
VTREF TYPE STRING,
RVTNR TYPE STRING,
SBHSL TYPE STRING,
TCODE TYPE STRING,
WAERS TYPE STRING,
BUDAT TYPE STRING,
VBUND TYPE STRING,
REFGF TYPE STRING,
REFBL TYPE STRING,
BLDAT TYPE STRING,END OF T_EKKO_STR. DATA: WA_VKKKFKO_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_VKKKFKO_STR-MANDT sy-vline
WA_VKKKFKO_STR-GSFNR sy-vline
WA_VKKKFKO_STR-BELNR sy-vline
WA_VKKKFKO_STR-ANZEP sy-vline
WA_VKKKFKO_STR-BLART sy-vline
WA_VKKKFKO_STR-BLTYP sy-vline
WA_VKKKFKO_STR-ABRZO sy-vline
WA_VKKKFKO_STR-ABRZU sy-vline
WA_VKKKFKO_STR-FREQZ sy-vline
WA_VKKKFKO_STR-GBETR sy-vline
WA_VKKKFKO_STR-GBISD sy-vline
WA_VKKKFKO_STR-BUKNZ sy-vline
WA_VKKKFKO_STR-OPBUK sy-vline
WA_VKKKFKO_STR-HFAEL sy-vline
WA_VKKKFKO_STR-KZSIA sy-vline
WA_VKKKFKO_STR-KZSIP sy-vline
WA_VKKKFKO_STR-NFAEL sy-vline
WA_VKKKFKO_STR-GPART sy-vline
WA_VKKKFKO_STR-RBART sy-vline
WA_VKKKFKO_STR-VTREF sy-vline
WA_VKKKFKO_STR-RVTNR sy-vline
WA_VKKKFKO_STR-SBHSL sy-vline
WA_VKKKFKO_STR-TCODE sy-vline
WA_VKKKFKO_STR-WAERS sy-vline
WA_VKKKFKO_STR-BUDAT sy-vline
WA_VKKKFKO_STR-VBUND sy-vline
WA_VKKKFKO_STR-REFGF sy-vline
WA_VKKKFKO_STR-REFBL sy-vline
WA_VKKKFKO_STR-BLDAT sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.