ABAP Select data from SAP table RJJPEFN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJJPEFN
*  INTO TABLE @DATA(IT_RJJPEFN2).
*--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_RJJPEFN INDEX 1 INTO DATA(WA_RJJPEFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJJPEFN>-MANDT = 1.
<RJJPEFN>-PRODEINH = 1.
<RJJPEFN>-PLAN_PE = 1.
<RJJPEFN>-PEVARARTPL = 1.
<RJJPEFN>-PEVARARTTA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJJPEFN-VAVARTYPPL, sy-vline,
  WA_RJJPEFN-VAVARTYPTA, sy-vline,
  WA_RJJPEFN-ERSCHDAT, sy-vline,
  WA_RJJPEFN-HEFT_NR, sy-vline,
  WA_RJJPEFN-SEITE_FORM, sy-vline,
  WA_RJJPEFN-XST_INHALT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJJPEFN 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_RJJPEFN 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_RJJPEFN INTO WA_RJJPEFN.


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

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

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

*Conversion exit CUNIT, internal->external for field MEINHPAGEW
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJJPEFN-MEINHPAGEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJPEFN-MEINHPAGEW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINHBLGEW
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJJPEFN-MEINHBLGEW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJPEFN-MEINHBLGEW.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field VAUSGB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJJPEFN-VAUSGB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJPEFN-VAUSGB.
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_RJJPEFN_STR, 
MANDT TYPE STRING,
PRODEINH TYPE STRING,
PLAN_PE TYPE STRING,
PEVARARTPL TYPE STRING,
PEVARARTTA TYPE STRING,
VAVARTYPPL TYPE STRING,
VAVARTYPTA TYPE STRING,
ERSCHDAT TYPE STRING,
HEFT_NR TYPE STRING,
SEITE_FORM TYPE STRING,
XST_INHALT TYPE STRING,
XMANUELL TYPE STRING,
XGENMASCH TYPE STRING,
SEITEN_ANZ TYPE STRING,
PAPIERGEW TYPE STRING,
MEINHPAGEW TYPE STRING,
BLATTGEW TYPE STRING,
MEINHBLGEW TYPE STRING,
LOEVM TYPE STRING,
LOEKZ TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
ERFPROG TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
AENPROG TYPE STRING,
DRERZTAT TYPE STRING,
PVATAT TYPE STRING,
BEZUGSTYP TYPE STRING,
BEVARTYP TYPE STRING,
VAUSGBNR TYPE STRING,
RASTER TYPE STRING,
VAVARTYP TYPE STRING,
DATUM_EIN TYPE STRING,
DATE_FROM TYPE STRING,
DATE_TO TYPE STRING,
WOCHE TYPE STRING,
MONAT TYPE STRING,
AUSGABE TYPE STRING,
VAUSGB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJJPEFN_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_RJJPEFN_STR-MANDT sy-vline 
WA_RJJPEFN_STR-PRODEINH sy-vline 
WA_RJJPEFN_STR-PLAN_PE sy-vline 
WA_RJJPEFN_STR-PEVARARTPL sy-vline 
WA_RJJPEFN_STR-PEVARARTTA sy-vline 
WA_RJJPEFN_STR-VAVARTYPPL sy-vline 
WA_RJJPEFN_STR-VAVARTYPTA sy-vline 
WA_RJJPEFN_STR-ERSCHDAT sy-vline 
WA_RJJPEFN_STR-HEFT_NR sy-vline 
WA_RJJPEFN_STR-SEITE_FORM sy-vline 
WA_RJJPEFN_STR-XST_INHALT sy-vline 
WA_RJJPEFN_STR-XMANUELL sy-vline 
WA_RJJPEFN_STR-XGENMASCH sy-vline 
WA_RJJPEFN_STR-SEITEN_ANZ sy-vline 
WA_RJJPEFN_STR-PAPIERGEW sy-vline 
WA_RJJPEFN_STR-MEINHPAGEW sy-vline 
WA_RJJPEFN_STR-BLATTGEW sy-vline 
WA_RJJPEFN_STR-MEINHBLGEW sy-vline 
WA_RJJPEFN_STR-LOEVM sy-vline 
WA_RJJPEFN_STR-LOEKZ sy-vline 
WA_RJJPEFN_STR-ERFUSER sy-vline 
WA_RJJPEFN_STR-ERFDATE sy-vline 
WA_RJJPEFN_STR-ERFTIME sy-vline 
WA_RJJPEFN_STR-ERFPROG sy-vline 
WA_RJJPEFN_STR-AENUSER sy-vline 
WA_RJJPEFN_STR-AENDATE sy-vline 
WA_RJJPEFN_STR-AENTIME sy-vline 
WA_RJJPEFN_STR-AENPROG sy-vline 
WA_RJJPEFN_STR-DRERZTAT sy-vline 
WA_RJJPEFN_STR-PVATAT sy-vline 
WA_RJJPEFN_STR-BEZUGSTYP sy-vline 
WA_RJJPEFN_STR-BEVARTYP sy-vline 
WA_RJJPEFN_STR-VAUSGBNR sy-vline 
WA_RJJPEFN_STR-RASTER sy-vline 
WA_RJJPEFN_STR-VAVARTYP sy-vline 
WA_RJJPEFN_STR-DATUM_EIN sy-vline 
WA_RJJPEFN_STR-DATE_FROM sy-vline 
WA_RJJPEFN_STR-DATE_TO sy-vline 
WA_RJJPEFN_STR-WOCHE sy-vline 
WA_RJJPEFN_STR-MONAT sy-vline 
WA_RJJPEFN_STR-AUSGABE sy-vline 
WA_RJJPEFN_STR-VAUSGB sy-vline      INTO ld_text SEPARATED BY SPACE.

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