ABAP Select data from SAP table RJJELE_VDB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RJJELE_VDB
*  INTO TABLE @DATA(IT_RJJELE_VDB2).
*--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_RJJELE_VDB INDEX 1 INTO DATA(WA_RJJELE_VDB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RJJELE_VDB>-MANDT = 1.
<RJJELE_VDB>-PACKAGE_ID = 1.
<RJJELE_VDB>-PK_ELEMENT_ID = 1.
<RJJELE_VDB>-PSTYV = 1.
<RJJELE_VDB>-BOOKING_UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RJJELE_VDB-BUS_CONT_COMP, sy-vline,
  WA_RJJELE_VDB-AD_INSERT_CATEG, sy-vline,
  WA_RJJELE_VDB-PLANNED_QTY_TYPE, sy-vline,
  WA_RJJELE_VDB-CALC_QUAN, sy-vline,
  WA_RJJELE_VDB-NUM_OF_PAGES, sy-vline,
  WA_RJJELE_VDB-AD_INS_WGHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RJJELE_VDB 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_RJJELE_VDB 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_RJJELE_VDB INTO WA_RJJELE_VDB.


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

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

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

*Conversion exit CUNIT, internal->external for field AD_INS_WGHT_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RJJELE_VDB-AD_INS_WGHT_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RJJELE_VDB-AD_INS_WGHT_UOM.
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_RJJELE_VDB_STR, 
MANDT TYPE STRING,
PACKAGE_ID TYPE STRING,
PK_ELEMENT_ID TYPE STRING,
PSTYV TYPE STRING,
BOOKING_UNIT TYPE STRING,
BUS_CONT_COMP TYPE STRING,
AD_INSERT_CATEG TYPE STRING,
PLANNED_QTY_TYPE TYPE STRING,
CALC_QUAN TYPE STRING,
NUM_OF_PAGES TYPE STRING,
AD_INS_WGHT TYPE STRING,
AD_INS_WGHT_UOM TYPE STRING,
DBCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RJJELE_VDB_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_RJJELE_VDB_STR-MANDT sy-vline 
WA_RJJELE_VDB_STR-PACKAGE_ID sy-vline 
WA_RJJELE_VDB_STR-PK_ELEMENT_ID sy-vline 
WA_RJJELE_VDB_STR-PSTYV sy-vline 
WA_RJJELE_VDB_STR-BOOKING_UNIT sy-vline 
WA_RJJELE_VDB_STR-BUS_CONT_COMP sy-vline 
WA_RJJELE_VDB_STR-AD_INSERT_CATEG sy-vline 
WA_RJJELE_VDB_STR-PLANNED_QTY_TYPE sy-vline 
WA_RJJELE_VDB_STR-CALC_QUAN sy-vline 
WA_RJJELE_VDB_STR-NUM_OF_PAGES sy-vline 
WA_RJJELE_VDB_STR-AD_INS_WGHT sy-vline 
WA_RJJELE_VDB_STR-AD_INS_WGHT_UOM sy-vline 
WA_RJJELE_VDB_STR-DBCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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