ABAP Select data from SAP table JBRVARPAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM JBRVARPAR
*  INTO TABLE @DATA(IT_JBRVARPAR2).
*--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_JBRVARPAR INDEX 1 INTO DATA(WA_JBRVARPAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<JBRVARPAR>-AUSWERTUNG = 1.
<JBRVARPAR>-REGELTYP = 1.
<JBRVARPAR>-WAERS = 1.
<JBRVARPAR>-DATUM = 1.
<JBRVARPAR>-HORIZONT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_JBRVARPAR-SZENARI, sy-vline,
  WA_JBRVARPAR-REGELID, sy-vline,
  WA_JBRVARPAR-VAL_AREA, sy-vline,
  WA_JBRVARPAR-VARVERF, sy-vline,
  WA_JBRVARPAR-HIERARCHIE, sy-vline,
  WA_JBRVARPAR-RKNOTEN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_JBRVARPAR 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_JBRVARPAR 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_JBRVARPAR INTO WA_JBRVARPAR.


*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 REGELID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_JBRVARPAR-REGELID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_JBRVARPAR-REGELID.
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_JBRVARPAR_STR, 
AUSWERTUNG TYPE STRING,
REGELTYP TYPE STRING,
WAERS TYPE STRING,
DATUM TYPE STRING,
HORIZONT TYPE STRING,
SZENARI TYPE STRING,
REGELID TYPE STRING,
VAL_AREA TYPE STRING,
VARVERF TYPE STRING,
HIERARCHIE TYPE STRING,
RKNOTEN TYPE STRING,
HISTORY TYPE STRING,
UNWIND TYPE STRING,
KALENDER TYPE STRING,
MISSLIMIT TYPE STRING,
KONFIDENZ TYPE STRING,
ALGORITHM TYPE STRING,
SAMPTYP TYPE STRING,
HDATUM TYPE STRING,
VKVOLART TYPE STRING,
VKKORART TYPE STRING,
DELTAONLY TYPE STRING,
RISKFACT_SET TYPE STRING,
RFS_EVAL_CRCY TYPE STRING,
RFS_EVAL_TYPE TYPE STRING,
SEED TYPE STRING,
SIMTYP TYPE STRING,
SIMLAUF TYPE STRING,
DESTINATION TYPE STRING,
FUNCTION TYPE STRING,
XVAR TYPE STRING,
XGUV TYPE STRING,
XROOT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_JBRVARPAR_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_JBRVARPAR_STR-AUSWERTUNG sy-vline 
WA_JBRVARPAR_STR-REGELTYP sy-vline 
WA_JBRVARPAR_STR-WAERS sy-vline 
WA_JBRVARPAR_STR-DATUM sy-vline 
WA_JBRVARPAR_STR-HORIZONT sy-vline 
WA_JBRVARPAR_STR-SZENARI sy-vline 
WA_JBRVARPAR_STR-REGELID sy-vline 
WA_JBRVARPAR_STR-VAL_AREA sy-vline 
WA_JBRVARPAR_STR-VARVERF sy-vline 
WA_JBRVARPAR_STR-HIERARCHIE sy-vline 
WA_JBRVARPAR_STR-RKNOTEN sy-vline 
WA_JBRVARPAR_STR-HISTORY sy-vline 
WA_JBRVARPAR_STR-UNWIND sy-vline 
WA_JBRVARPAR_STR-KALENDER sy-vline 
WA_JBRVARPAR_STR-MISSLIMIT sy-vline 
WA_JBRVARPAR_STR-KONFIDENZ sy-vline 
WA_JBRVARPAR_STR-ALGORITHM sy-vline 
WA_JBRVARPAR_STR-SAMPTYP sy-vline 
WA_JBRVARPAR_STR-HDATUM sy-vline 
WA_JBRVARPAR_STR-VKVOLART sy-vline 
WA_JBRVARPAR_STR-VKKORART sy-vline 
WA_JBRVARPAR_STR-DELTAONLY sy-vline 
WA_JBRVARPAR_STR-RISKFACT_SET sy-vline 
WA_JBRVARPAR_STR-RFS_EVAL_CRCY sy-vline 
WA_JBRVARPAR_STR-RFS_EVAL_TYPE sy-vline 
WA_JBRVARPAR_STR-SEED sy-vline 
WA_JBRVARPAR_STR-SIMTYP sy-vline 
WA_JBRVARPAR_STR-SIMLAUF sy-vline 
WA_JBRVARPAR_STR-DESTINATION sy-vline 
WA_JBRVARPAR_STR-FUNCTION sy-vline 
WA_JBRVARPAR_STR-XVAR sy-vline 
WA_JBRVARPAR_STR-XGUV sy-vline 
WA_JBRVARPAR_STR-XROOT sy-vline      INTO ld_text SEPARATED BY SPACE.

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