ABAP Select data from SAP table REXCC_SK_VZN_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCC_SK_VZN_X
*  INTO TABLE @DATA(IT_REXCC_SK_VZN_X2).
*--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_REXCC_SK_VZN_X INDEX 1 INTO DATA(WA_REXCC_SK_VZN_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCC_SK_VZN_X>-MANDT = 1.
<REXCC_SK_VZN_X>-BUKRS = 1.
<REXCC_SK_VZN_X>-TYPVZN = 1.
<REXCC_SK_VZN_X>-TYPNEM = 1.
<REXCC_SK_VZN_X>-KODOBCE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCC_SK_VZN_X-KODCOBCE, sy-vline,
  WA_REXCC_SK_VZN_X-KODKU, sy-vline,
  WA_REXCC_SK_VZN_X-PARCELA, sy-vline,
  WA_REXCC_SK_VZN_X-DRNEM, sy-vline,
  WA_REXCC_SK_VZN_X-ROKOD, sy-vline,
  WA_REXCC_SK_VZN_X-ROKDO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCC_SK_VZN_X 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_REXCC_SK_VZN_X 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_REXCC_SK_VZN_X INTO WA_REXCC_SK_VZN_X.


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

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

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REXCC_SK_VZN_X-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCC_SK_VZN_X-PARTNER.
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_REXCC_SK_VZN_X_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
TYPVZN TYPE STRING,
TYPNEM TYPE STRING,
KODOBCE TYPE STRING,
KODCOBCE TYPE STRING,
KODKU TYPE STRING,
PARCELA TYPE STRING,
DRNEM TYPE STRING,
ROKOD TYPE STRING,
ROKDO TYPE STRING,
VZNVALUE TYPE STRING,
SPRAVCE TYPE STRING,
PARTNER TYPE STRING,
BVTYP TYPE STRING,
X_COST_CONTROL TYPE STRING,
X_LIAB_CONTROL TYPE STRING,
PERKEY TYPE STRING,
LIMIT TYPE STRING,
HODNPUDY TYPE STRING,
ROCSAZ TYPE STRING,
PRIPLPOD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCC_SK_VZN_X_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_REXCC_SK_VZN_X_STR-MANDT sy-vline 
WA_REXCC_SK_VZN_X_STR-BUKRS sy-vline 
WA_REXCC_SK_VZN_X_STR-TYPVZN sy-vline 
WA_REXCC_SK_VZN_X_STR-TYPNEM sy-vline 
WA_REXCC_SK_VZN_X_STR-KODOBCE sy-vline 
WA_REXCC_SK_VZN_X_STR-KODCOBCE sy-vline 
WA_REXCC_SK_VZN_X_STR-KODKU sy-vline 
WA_REXCC_SK_VZN_X_STR-PARCELA sy-vline 
WA_REXCC_SK_VZN_X_STR-DRNEM sy-vline 
WA_REXCC_SK_VZN_X_STR-ROKOD sy-vline 
WA_REXCC_SK_VZN_X_STR-ROKDO sy-vline 
WA_REXCC_SK_VZN_X_STR-VZNVALUE sy-vline 
WA_REXCC_SK_VZN_X_STR-SPRAVCE sy-vline 
WA_REXCC_SK_VZN_X_STR-PARTNER sy-vline 
WA_REXCC_SK_VZN_X_STR-BVTYP sy-vline 
WA_REXCC_SK_VZN_X_STR-X_COST_CONTROL sy-vline 
WA_REXCC_SK_VZN_X_STR-X_LIAB_CONTROL sy-vline 
WA_REXCC_SK_VZN_X_STR-PERKEY sy-vline 
WA_REXCC_SK_VZN_X_STR-LIMIT sy-vline 
WA_REXCC_SK_VZN_X_STR-HODNPUDY sy-vline 
WA_REXCC_SK_VZN_X_STR-ROCSAZ sy-vline 
WA_REXCC_SK_VZN_X_STR-PRIPLPOD sy-vline      INTO ld_text SEPARATED BY SPACE.

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