ABAP Select data from SAP table RJS0102 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJS0102 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 RJS0102. 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 RJS0102 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_RJS0102 TYPE STANDARD TABLE OF RJS0102,
      WA_RJS0102 TYPE RJS0102,
      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: <RJS0102> TYPE RJS0102.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJS0102.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJS0102
  INTO TABLE IT_RJS0102.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJS0102
*  INTO TABLE @DATA(IT_RJS01022).
*--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_RJS0102 INDEX 1 INTO DATA(WA_RJS01022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJS0102 ASSIGNING <RJS0102>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJS0102>-KNOTEN1 = 1.
<RJS0102>-KNOTEN2 = 1.
<RJS0102>-KNOTENART1 = 1.
<RJS0102>-KNOTENART2 = 1.
<RJS0102>-GUELTIGBIS = 1.

ENDLOOP.

LOOP AT IT_RJS0102 INTO WA_RJS0102.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJS0102-GUELTIGAB, sy-vline,
  WA_RJS0102-ZUORDART, sy-vline,
  WA_RJS0102-ZUORDFUNK, sy-vline,
  WA_RJS0102-LAND1, sy-vline,
  WA_RJS0102-HNRKENN, sy-vline,
  WA_RJS0102-HAUSNRVON, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJS0102 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_RJS0102 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_RJS0102 INTO WA_RJS0102.


*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 ADDRSECNUMLOW
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-ADDRSECNUMLOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-ADDRSECNUMLOW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRSECNUMHIGH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-ADDRSECNUMHIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-ADDRSECNUMHIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRBIS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-AENDNRBIS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-AENDNRBIS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRAB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-AENDNRAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-AENDNRAB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRINIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-AENDNRINIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-AENDNRINIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRAKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-AENDNRAKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-AENDNRAKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRVON
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-AENDNRVON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-AENDNRVON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AENDNRNACH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS0102-AENDNRNACH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS0102-AENDNRNACH.
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_RJS0102_STR, 
KNOTEN1 TYPE STRING,
KNOTEN2 TYPE STRING,
KNOTENART1 TYPE STRING,
KNOTENART2 TYPE STRING,
GUELTIGBIS TYPE STRING,
GUELTIGAB TYPE STRING,
ZUORDART TYPE STRING,
ZUORDFUNK TYPE STRING,
LAND1 TYPE STRING,
HNRKENN TYPE STRING,
HAUSNRVON TYPE STRING,
HAUSNRBIS TYPE STRING,
HNRZUSVON TYPE STRING,
HNRZUSBIS TYPE STRING,
ADRZUSATZ TYPE STRING,
STOCKWERK TYPE STRING,
ADDRSECABBREV TYPE STRING,
ADDRSECNUMLOW TYPE STRING,
ADDRSECNUMHIGH TYPE STRING,
ADDRSECODDEVEN TYPE STRING,
XMANUELL TYPE STRING,
ZUORDTYP TYPE STRING,
STRUSTUFE TYPE STRING,
HIETYP TYPE STRING,
XSTRUANZ TYPE STRING,
AUFZUORDTP TYPE STRING,
PARALLELNR TYPE STRING,
BAUMNR TYPE STRING,
STRUSORT TYPE STRING,
NEXT_MEMB TYPE STRING,
FIRST_MEMB TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
AENDNRBIS TYPE STRING,
AENDNRBISD TYPE STRING,
AENDNRAB TYPE STRING,
AENDNRABD TYPE STRING,
AENDNRINIT TYPE STRING,
AENDLFDNRI TYPE STRING,
AENDNRAKT TYPE STRING,
AENDLFDNRA TYPE STRING,
XAENDER TYPE STRING,
XSTRUAKTIV TYPE STRING,
FCCODE TYPE STRING,
DBCODEFREI TYPE STRING,
AENDNRVON TYPE STRING,
AENDLFDNRV TYPE STRING,
AENDNRNACH TYPE STRING,
AENDLFDNRN TYPE STRING,
DBCODEAEND TYPE STRING,
FCCODEALT TYPE STRING,
OID TYPE STRING,
XSCRIPT TYPE STRING,
SCRIPTNUM TYPE STRING,
XUPDATSCRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJS0102_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_RJS0102_STR-KNOTEN1 sy-vline 
WA_RJS0102_STR-KNOTEN2 sy-vline 
WA_RJS0102_STR-KNOTENART1 sy-vline 
WA_RJS0102_STR-KNOTENART2 sy-vline 
WA_RJS0102_STR-GUELTIGBIS sy-vline 
WA_RJS0102_STR-GUELTIGAB sy-vline 
WA_RJS0102_STR-ZUORDART sy-vline 
WA_RJS0102_STR-ZUORDFUNK sy-vline 
WA_RJS0102_STR-LAND1 sy-vline 
WA_RJS0102_STR-HNRKENN sy-vline 
WA_RJS0102_STR-HAUSNRVON sy-vline 
WA_RJS0102_STR-HAUSNRBIS sy-vline 
WA_RJS0102_STR-HNRZUSVON sy-vline 
WA_RJS0102_STR-HNRZUSBIS sy-vline 
WA_RJS0102_STR-ADRZUSATZ sy-vline 
WA_RJS0102_STR-STOCKWERK sy-vline 
WA_RJS0102_STR-ADDRSECABBREV sy-vline 
WA_RJS0102_STR-ADDRSECNUMLOW sy-vline 
WA_RJS0102_STR-ADDRSECNUMHIGH sy-vline 
WA_RJS0102_STR-ADDRSECODDEVEN sy-vline 
WA_RJS0102_STR-XMANUELL sy-vline 
WA_RJS0102_STR-ZUORDTYP sy-vline 
WA_RJS0102_STR-STRUSTUFE sy-vline 
WA_RJS0102_STR-HIETYP sy-vline 
WA_RJS0102_STR-XSTRUANZ sy-vline 
WA_RJS0102_STR-AUFZUORDTP sy-vline 
WA_RJS0102_STR-PARALLELNR sy-vline 
WA_RJS0102_STR-BAUMNR sy-vline 
WA_RJS0102_STR-STRUSORT sy-vline 
WA_RJS0102_STR-NEXT_MEMB sy-vline 
WA_RJS0102_STR-FIRST_MEMB sy-vline 
WA_RJS0102_STR-ERFUSER sy-vline 
WA_RJS0102_STR-ERFDATE sy-vline 
WA_RJS0102_STR-ERFTIME sy-vline 
WA_RJS0102_STR-AENUSER sy-vline 
WA_RJS0102_STR-AENDATE sy-vline 
WA_RJS0102_STR-AENTIME sy-vline 
WA_RJS0102_STR-AENDNRBIS sy-vline 
WA_RJS0102_STR-AENDNRBISD sy-vline 
WA_RJS0102_STR-AENDNRAB sy-vline 
WA_RJS0102_STR-AENDNRABD sy-vline 
WA_RJS0102_STR-AENDNRINIT sy-vline 
WA_RJS0102_STR-AENDLFDNRI sy-vline 
WA_RJS0102_STR-AENDNRAKT sy-vline 
WA_RJS0102_STR-AENDLFDNRA sy-vline 
WA_RJS0102_STR-XAENDER sy-vline 
WA_RJS0102_STR-XSTRUAKTIV sy-vline 
WA_RJS0102_STR-FCCODE sy-vline 
WA_RJS0102_STR-DBCODEFREI sy-vline 
WA_RJS0102_STR-AENDNRVON sy-vline 
WA_RJS0102_STR-AENDLFDNRV sy-vline 
WA_RJS0102_STR-AENDNRNACH sy-vline 
WA_RJS0102_STR-AENDLFDNRN sy-vline 
WA_RJS0102_STR-DBCODEAEND sy-vline 
WA_RJS0102_STR-FCCODEALT sy-vline 
WA_RJS0102_STR-OID sy-vline 
WA_RJS0102_STR-XSCRIPT sy-vline 
WA_RJS0102_STR-SCRIPTNUM sy-vline 
WA_RJS0102_STR-XUPDATSCRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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