ABAP Select data from SAP table REXCJPFUP into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP REXCJPFUP 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 REXCJPFUP. 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 REXCJPFUP 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_REXCJPFUP TYPE STANDARD TABLE OF REXCJPFUP,
      WA_REXCJPFUP TYPE REXCJPFUP,
      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: <REXCJPFUP> TYPE REXCJPFUP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REXCJPFUP
*  INTO TABLE @DATA(IT_REXCJPFUP2).
*--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_REXCJPFUP INDEX 1 INTO DATA(WA_REXCJPFUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REXCJPFUP>-SNKSL = 1.
<REXCJPFUP>-OBJTYPE = 1.
<REXCJPFUP>-IDENTKEY = 1.
<REXCJPFUP>-OBJNR = 1.
<REXCJPFUP>-VALIDTO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REXCJPFUP-CONSRNGSEQNO, sy-vline,
  WA_REXCJPFUP-VALIDFROM, sy-vline,
  WA_REXCJPFUP-CONSSHAREMETHOD, sy-vline,
  WA_REXCJPFUP-PRICECALCMETHOD, sy-vline,
  WA_REXCJPFUP-CONS_RANGE_LOW, sy-vline,
  WA_REXCJPFUP-FIXED_UNIT_PRICE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REXCJPFUP 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_REXCJPFUP 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_REXCJPFUP INTO WA_REXCJPFUP.


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

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_REXCJPFUP-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REXCJPFUP-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_REXCJPFUP_STR, 
SNKSL TYPE STRING,
OBJTYPE TYPE STRING,
IDENTKEY TYPE STRING,
OBJNR TYPE STRING,
VALIDTO TYPE STRING,
CONSRNGSEQNO TYPE STRING,
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_REXCJPFUP_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_REXCJPFUP_STR-SNKSL sy-vline 
WA_REXCJPFUP_STR-OBJTYPE sy-vline 
WA_REXCJPFUP_STR-IDENTKEY sy-vline 
WA_REXCJPFUP_STR-OBJNR sy-vline 
WA_REXCJPFUP_STR-VALIDTO sy-vline 
WA_REXCJPFUP_STR-CONSRNGSEQNO sy-vline 
WA_REXCJPFUP_STR-VALIDFROM sy-vline 
WA_REXCJPFUP_STR-CONSSHAREMETHOD sy-vline 
WA_REXCJPFUP_STR-PRICECALCMETHOD sy-vline 
WA_REXCJPFUP_STR-CONS_RANGE_LOW sy-vline 
WA_REXCJPFUP_STR-FIXED_UNIT_PRICE sy-vline 
WA_REXCJPFUP_STR-CURRENCY sy-vline 
WA_REXCJPFUP_STR-KMEIN sy-vline 
WA_REXCJPFUP_STR-COUNTRY sy-vline 
WA_REXCJPFUP_STR-TAXTYPE sy-vline 
WA_REXCJPFUP_STR-TAXGROUP sy-vline 
WA_REXCJPFUP_STR-TAXCALC sy-vline 
WA_REXCJPFUP_STR-CEOBJTYPE sy-vline 
WA_REXCJPFUP_STR-CEID sy-vline 
WA_REXCJPFUP_STR-CENAME sy-vline 
WA_REXCJPFUP_STR-CEOBJNR sy-vline 
WA_REXCJPFUP_STR-XOBJTYPE sy-vline 
WA_REXCJPFUP_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.