ABAP Select data from SAP table RGJVIX1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RGJVIX1 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 RGJVIX1. 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 RGJVIX1 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_RGJVIX1 TYPE STANDARD TABLE OF RGJVIX1,
      WA_RGJVIX1 TYPE RGJVIX1,
      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: <RGJVIX1> TYPE RGJVIX1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RGJVIX1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RGJVIX1
  INTO TABLE IT_RGJVIX1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RGJVIX1
*  INTO TABLE @DATA(IT_RGJVIX12).
*--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_RGJVIX1 INDEX 1 INTO DATA(WA_RGJVIX12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RGJVIX1 ASSIGNING <RGJVIX1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RGJVIX1>-AWTYP = 1.
<RGJVIX1>-AWREF = 1.
<RGJVIX1>-AWORG = 1.
<RGJVIX1>-BUKRS = 1.
<RGJVIX1>-BELNR = 1.

ENDLOOP.

LOOP AT IT_RGJVIX1 INTO WA_RGJVIX1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RGJVIX1-GJAHR, sy-vline,
  WA_RGJVIX1-APPL, sy-vline,
  WA_RGJVIX1-CLEAR, sy-vline,
  WA_RGJVIX1-CLEAR_LN, sy-vline,
  WA_RGJVIX1-VENDOR, sy-vline,
  WA_RGJVIX1-CUSTOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RGJVIX1 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_RGJVIX1 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_RGJVIX1 INTO WA_RGJVIX1.


*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 AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJVIX1-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJVIX1-AWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJVIX1-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJVIX1-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RGJVIX1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJVIX1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RECID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGJVIX1-RECID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGJVIX1-RECID.
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_RGJVIX1_STR, 
AWTYP TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
APPL TYPE STRING,
CLEAR TYPE STRING,
CLEAR_LN TYPE STRING,
VENDOR TYPE STRING,
CUSTOM TYPE STRING,
GLACCT TYPE STRING,
EXCHGE TYPE STRING,
TAX TYPE STRING,
ASSET TYPE STRING,
DISCNT TYPE STRING,
INTCOM TYPE STRING,
MATRL TYPE STRING,
SPLIT TYPE STRING,
RECID TYPE STRING,
NONCL_SPLIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RGJVIX1_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_RGJVIX1_STR-AWTYP sy-vline 
WA_RGJVIX1_STR-AWREF sy-vline 
WA_RGJVIX1_STR-AWORG sy-vline 
WA_RGJVIX1_STR-BUKRS sy-vline 
WA_RGJVIX1_STR-BELNR sy-vline 
WA_RGJVIX1_STR-GJAHR sy-vline 
WA_RGJVIX1_STR-APPL sy-vline 
WA_RGJVIX1_STR-CLEAR sy-vline 
WA_RGJVIX1_STR-CLEAR_LN sy-vline 
WA_RGJVIX1_STR-VENDOR sy-vline 
WA_RGJVIX1_STR-CUSTOM sy-vline 
WA_RGJVIX1_STR-GLACCT sy-vline 
WA_RGJVIX1_STR-EXCHGE sy-vline 
WA_RGJVIX1_STR-TAX sy-vline 
WA_RGJVIX1_STR-ASSET sy-vline 
WA_RGJVIX1_STR-DISCNT sy-vline 
WA_RGJVIX1_STR-INTCOM sy-vline 
WA_RGJVIX1_STR-MATRL sy-vline 
WA_RGJVIX1_STR-SPLIT sy-vline 
WA_RGJVIX1_STR-RECID sy-vline 
WA_RGJVIX1_STR-NONCL_SPLIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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