ABAP Select data from SAP table REXCJPFIXEDUNITPRICE_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCJPFIXEDUNITPRICE_TAB
*  INTO TABLE @DATA(IT_REXCJPFIXEDUNITPRICE_TAB2).
*--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_REXCJPFIXEDUNITPRICE_TAB INDEX 1 INTO DATA(WA_REXCJPFIXEDUNITPRICE_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCJPFIXEDUNITPRICE_TAB>-VALIDFROM = 1.
<REXCJPFIXEDUNITPRICE_TAB>-CONSSHAREMETHOD = 1.
<REXCJPFIXEDUNITPRICE_TAB>-PRICECALCMETHOD = 1.
<REXCJPFIXEDUNITPRICE_TAB>-CONS_RANGE_LOW = 1.
<REXCJPFIXEDUNITPRICE_TAB>-FIXED_UNIT_PRICE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCJPFIXEDUNITPRICE_TAB-CURRENCY, sy-vline,
  WA_REXCJPFIXEDUNITPRICE_TAB-KMEIN, sy-vline,
  WA_REXCJPFIXEDUNITPRICE_TAB-COUNTRY, sy-vline,
  WA_REXCJPFIXEDUNITPRICE_TAB-TAXTYPE, sy-vline,
  WA_REXCJPFIXEDUNITPRICE_TAB-TAXGROUP, sy-vline,
  WA_REXCJPFIXEDUNITPRICE_TAB-TAXCALC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCJPFIXEDUNITPRICE_TAB 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_REXCJPFIXEDUNITPRICE_TAB 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_REXCJPFIXEDUNITPRICE_TAB INTO WA_REXCJPFIXEDUNITPRICE_TAB.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REXCJPFIXEDUNITPRICE_TAB-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCJPFIXEDUNITPRICE_TAB-KMEIN.
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_REXCJPFIXEDUNITPRICE_TAB_STR, 
VALIDFROM TYPE STRING,
CONSSHAREMETHOD TYPE STRING,
PRICECALCMETHOD TYPE STRING,
CONS_RANGE_LOW TYPE STRING,
FIXED_UNIT_PRICE TYPE STRING,
CURRENCY TYPE STRING,
KMEIN TYPE STRING,
COUNTRY TYPE STRING,
TAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
TAXCALC TYPE STRING,
CEOBJTYPE TYPE STRING,
CEID TYPE STRING,
CENAME TYPE STRING,
CEOBJNR TYPE STRING,
XOBJTYPE TYPE STRING,
XCEOBJTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REXCJPFIXEDUNITPRICE_TAB_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_REXCJPFIXEDUNITPRICE_TAB_STR-VALIDFROM sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CONSSHAREMETHOD sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-PRICECALCMETHOD sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CONS_RANGE_LOW sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-FIXED_UNIT_PRICE sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CURRENCY sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-KMEIN sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-COUNTRY sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-TAXTYPE sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-TAXGROUP sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-TAXCALC sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CEOBJTYPE sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CEID sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CENAME sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-CEOBJNR sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-XOBJTYPE sy-vline 
WA_REXCJPFIXEDUNITPRICE_TAB_STR-XCEOBJTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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