ABAP Select data from SAP table RJS_Z_PARA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJS_Z_PARA
*  INTO TABLE @DATA(IT_RJS_Z_PARA2).
*--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_RJS_Z_PARA INDEX 1 INTO DATA(WA_RJS_Z_PARA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJS_Z_PARA>-MANDT = 1.
<RJS_Z_PARA>-OBJEKT_TYP = 1.
<RJS_Z_PARA>-OBJEKT = 1.
<RJS_Z_PARA>-BEZ_OBJ = 1.
<RJS_Z_PARA>-BEZ_OBJTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJS_Z_PARA-GUELTIGVON, sy-vline,
  WA_RJS_Z_PARA-GUELTIGBIS, sy-vline,
  WA_RJS_Z_PARA-BAUMNUMMER, sy-vline,
  WA_RJS_Z_PARA-STARTZUOTP, sy-vline,
  WA_RJS_Z_PARA-ZIELZUOTP, sy-vline,
  WA_RJS_Z_PARA-RICHTUNG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJS_Z_PARA 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_RJS_Z_PARA 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_RJS_Z_PARA INTO WA_RJS_Z_PARA.


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

*Conversion exit ALPHA, internal->external for field STRASSENNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJS_Z_PARA-STRASSENNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJS_Z_PARA-STRASSENNR.
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_RJS_Z_PARA_STR, 
MANDT TYPE STRING,
OBJEKT_TYP TYPE STRING,
OBJEKT TYPE STRING,
BEZ_OBJ TYPE STRING,
BEZ_OBJTYP TYPE STRING,
GUELTIGVON TYPE STRING,
GUELTIGBIS TYPE STRING,
BAUMNUMMER TYPE STRING,
STARTZUOTP TYPE STRING,
ZIELZUOTP TYPE STRING,
RICHTUNG TYPE STRING,
BEZ_RICHT TYPE STRING,
HIETYP TYPE STRING,
BEZ_HIETYP TYPE STRING,
BAUM_TIEFE TYPE STRING,
X_AKTIV TYPE STRING,
X_INAKTIV TYPE STRING,
XSTRUAKTIV TYPE STRING,
X_NORM TYPE STRING,
X_UNTERBRE TYPE STRING,
XAUFORG TYPE STRING,
XBEZIRK TYPE STRING,
XROUSPLIT TYPE STRING,
XROUUMLADE TYPE STRING,
ADD_KNOTEN TYPE STRING,
ADD_BEZ_KN TYPE STRING,
ADD_TYP TYPE STRING,
ADD_STUFE TYPE STRING,
ADD_SU_TYP TYPE STRING,
ADD_B_TYP TYPE STRING,
ADD_B_TYPS TYPE STRING,
BEZ_ART TYPE STRING,
LAND1 TYPE STRING,
ORTSNR TYPE STRING,
PLZ TYPE STRING,
STRASSENNR TYPE STRING,
HAUSNR TYPE STRING,
HNRZUSATZ TYPE STRING,
ADRZUSATZ TYPE STRING,
STOCKWERK TYPE STRING,
BEZZUOTYP TYPE STRING,
UEBVKBUR TYPE STRING,
UNTVKBUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJS_Z_PARA_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_RJS_Z_PARA_STR-MANDT sy-vline 
WA_RJS_Z_PARA_STR-OBJEKT_TYP sy-vline 
WA_RJS_Z_PARA_STR-OBJEKT sy-vline 
WA_RJS_Z_PARA_STR-BEZ_OBJ sy-vline 
WA_RJS_Z_PARA_STR-BEZ_OBJTYP sy-vline 
WA_RJS_Z_PARA_STR-GUELTIGVON sy-vline 
WA_RJS_Z_PARA_STR-GUELTIGBIS sy-vline 
WA_RJS_Z_PARA_STR-BAUMNUMMER sy-vline 
WA_RJS_Z_PARA_STR-STARTZUOTP sy-vline 
WA_RJS_Z_PARA_STR-ZIELZUOTP sy-vline 
WA_RJS_Z_PARA_STR-RICHTUNG sy-vline 
WA_RJS_Z_PARA_STR-BEZ_RICHT sy-vline 
WA_RJS_Z_PARA_STR-HIETYP sy-vline 
WA_RJS_Z_PARA_STR-BEZ_HIETYP sy-vline 
WA_RJS_Z_PARA_STR-BAUM_TIEFE sy-vline 
WA_RJS_Z_PARA_STR-X_AKTIV sy-vline 
WA_RJS_Z_PARA_STR-X_INAKTIV sy-vline 
WA_RJS_Z_PARA_STR-XSTRUAKTIV sy-vline 
WA_RJS_Z_PARA_STR-X_NORM sy-vline 
WA_RJS_Z_PARA_STR-X_UNTERBRE sy-vline 
WA_RJS_Z_PARA_STR-XAUFORG sy-vline 
WA_RJS_Z_PARA_STR-XBEZIRK sy-vline 
WA_RJS_Z_PARA_STR-XROUSPLIT sy-vline 
WA_RJS_Z_PARA_STR-XROUUMLADE sy-vline 
WA_RJS_Z_PARA_STR-ADD_KNOTEN sy-vline 
WA_RJS_Z_PARA_STR-ADD_BEZ_KN sy-vline 
WA_RJS_Z_PARA_STR-ADD_TYP sy-vline 
WA_RJS_Z_PARA_STR-ADD_STUFE sy-vline 
WA_RJS_Z_PARA_STR-ADD_SU_TYP sy-vline 
WA_RJS_Z_PARA_STR-ADD_B_TYP sy-vline 
WA_RJS_Z_PARA_STR-ADD_B_TYPS sy-vline 
WA_RJS_Z_PARA_STR-BEZ_ART sy-vline 
WA_RJS_Z_PARA_STR-LAND1 sy-vline 
WA_RJS_Z_PARA_STR-ORTSNR sy-vline 
WA_RJS_Z_PARA_STR-PLZ sy-vline 
WA_RJS_Z_PARA_STR-STRASSENNR sy-vline 
WA_RJS_Z_PARA_STR-HAUSNR sy-vline 
WA_RJS_Z_PARA_STR-HNRZUSATZ sy-vline 
WA_RJS_Z_PARA_STR-ADRZUSATZ sy-vline 
WA_RJS_Z_PARA_STR-STOCKWERK sy-vline 
WA_RJS_Z_PARA_STR-BEZZUOTYP sy-vline 
WA_RJS_Z_PARA_STR-UEBVKBUR sy-vline 
WA_RJS_Z_PARA_STR-UNTVKBUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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