ABAP Select data from SAP table RJVSD_TP_ALV_33 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RJVSD_TP_ALV_33 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 RJVSD_TP_ALV_33. 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 RJVSD_TP_ALV_33 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_RJVSD_TP_ALV_33 TYPE STANDARD TABLE OF RJVSD_TP_ALV_33,
      WA_RJVSD_TP_ALV_33 TYPE RJVSD_TP_ALV_33,
      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: <RJVSD_TP_ALV_33> TYPE RJVSD_TP_ALV_33.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RJVSD_TP_ALV_33.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RJVSD_TP_ALV_33
  INTO TABLE IT_RJVSD_TP_ALV_33.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJVSD_TP_ALV_33
*  INTO TABLE @DATA(IT_RJVSD_TP_ALV_332).
*--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_RJVSD_TP_ALV_33 INDEX 1 INTO DATA(WA_RJVSD_TP_ALV_332).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RJVSD_TP_ALV_33 ASSIGNING <RJVSD_TP_ALV_33>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJVSD_TP_ALV_33>-VBELN = 1.
<RJVSD_TP_ALV_33>-POSNR = 1.
<RJVSD_TP_ALV_33>-ISSUE = 1.
<RJVSD_TP_ALV_33>-MED_PROD = 1.
<RJVSD_TP_ALV_33>-ISMMEDIATYPE = 1.

ENDLOOP.

LOOP AT IT_RJVSD_TP_ALV_33 INTO WA_RJVSD_TP_ALV_33.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJVSD_TP_ALV_33-ISMMEDIATYPE_TXT, sy-vline,
  WA_RJVSD_TP_ALV_33-ISMPERIOD, sy-vline,
  WA_RJVSD_TP_ALV_33-ISMPERIOD_TXT, sy-vline,
  WA_RJVSD_TP_ALV_33-WERKS, sy-vline,
  WA_RJVSD_TP_ALV_33-SHIPTO, sy-vline,
  WA_RJVSD_TP_ALV_33-QUANTITY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJVSD_TP_ALV_33 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_RJVSD_TP_ALV_33 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_RJVSD_TP_ALV_33 INTO WA_RJVSD_TP_ALV_33.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field ISSUE
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-ISSUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-ISSUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MED_PROD
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-MED_PROD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-MED_PROD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHIPTO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-SHIPTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-SHIPTO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI_CYCLE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-GEWEI_CYCLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-GEWEI_CYCLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI_ROUTE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJVSD_TP_ALV_33-GEWEI_ROUTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJVSD_TP_ALV_33-GEWEI_ROUTE.
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_RJVSD_TP_ALV_33_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
ISSUE TYPE STRING,
MED_PROD TYPE STRING,
ISMMEDIATYPE TYPE STRING,
ISMMEDIATYPE_TXT TYPE STRING,
ISMPERIOD TYPE STRING,
ISMPERIOD_TXT TYPE STRING,
WERKS TYPE STRING,
SHIPTO TYPE STRING,
QUANTITY TYPE STRING,
UNIT TYPE STRING,
QUANTITY_B TYPE STRING,
MEINS TYPE STRING,
BRGEW TYPE STRING,
BRGEW_QUAN TYPE STRING,
GEWEI TYPE STRING,
BRGEW_CYCLE TYPE STRING,
GEWEI_CYCLE TYPE STRING,
BRGEW_ROUTE TYPE STRING,
GEWEI_ROUTE TYPE STRING,
PHASEMDL TYPE STRING,
PHASENBR TYPE STRING,
ORDERFLAG TYPE STRING,
COL_TAB_33 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJVSD_TP_ALV_33_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_RJVSD_TP_ALV_33_STR-VBELN sy-vline 
WA_RJVSD_TP_ALV_33_STR-POSNR sy-vline 
WA_RJVSD_TP_ALV_33_STR-ISSUE sy-vline 
WA_RJVSD_TP_ALV_33_STR-MED_PROD sy-vline 
WA_RJVSD_TP_ALV_33_STR-ISMMEDIATYPE sy-vline 
WA_RJVSD_TP_ALV_33_STR-ISMMEDIATYPE_TXT sy-vline 
WA_RJVSD_TP_ALV_33_STR-ISMPERIOD sy-vline 
WA_RJVSD_TP_ALV_33_STR-ISMPERIOD_TXT sy-vline 
WA_RJVSD_TP_ALV_33_STR-WERKS sy-vline 
WA_RJVSD_TP_ALV_33_STR-SHIPTO sy-vline 
WA_RJVSD_TP_ALV_33_STR-QUANTITY sy-vline 
WA_RJVSD_TP_ALV_33_STR-UNIT sy-vline 
WA_RJVSD_TP_ALV_33_STR-QUANTITY_B sy-vline 
WA_RJVSD_TP_ALV_33_STR-MEINS sy-vline 
WA_RJVSD_TP_ALV_33_STR-BRGEW sy-vline 
WA_RJVSD_TP_ALV_33_STR-BRGEW_QUAN sy-vline 
WA_RJVSD_TP_ALV_33_STR-GEWEI sy-vline 
WA_RJVSD_TP_ALV_33_STR-BRGEW_CYCLE sy-vline 
WA_RJVSD_TP_ALV_33_STR-GEWEI_CYCLE sy-vline 
WA_RJVSD_TP_ALV_33_STR-BRGEW_ROUTE sy-vline 
WA_RJVSD_TP_ALV_33_STR-GEWEI_ROUTE sy-vline 
WA_RJVSD_TP_ALV_33_STR-PHASEMDL sy-vline 
WA_RJVSD_TP_ALV_33_STR-PHASENBR sy-vline 
WA_RJVSD_TP_ALV_33_STR-ORDERFLAG sy-vline 
WA_RJVSD_TP_ALV_33_STR-COL_TAB_33 sy-vline      INTO ld_text SEPARATED BY SPACE.

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