ABAP Select data from SAP table IDCJ_RATE_ALV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDCJ_RATE_ALV
*  INTO TABLE @DATA(IT_IDCJ_RATE_ALV2).
*--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_IDCJ_RATE_ALV INDEX 1 INTO DATA(WA_IDCJ_RATE_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDCJ_RATE_ALV>-BUKRS = 1.
<IDCJ_RATE_ALV>-CAJO_NUMBER = 1.
<IDCJ_RATE_ALV>-CURRENCY = 1.
<IDCJ_RATE_ALV>-TRANSACT_NAME = 1.
<IDCJ_RATE_ALV>-POSTING_NUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDCJ_RATE_ALV-DOCUMENT_STATUS, sy-vline,
  WA_IDCJ_RATE_ALV-DOC_STATUS_T, sy-vline,
  WA_IDCJ_RATE_ALV-BELNR, sy-vline,
  WA_IDCJ_RATE_ALV-CPUDT, sy-vline,
  WA_IDCJ_RATE_ALV-CPUTM, sy-vline,
  WA_IDCJ_RATE_ALV-REFERENCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDCJ_RATE_ALV 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_IDCJ_RATE_ALV 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_IDCJ_RATE_ALV INTO WA_IDCJ_RATE_ALV.


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

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

*Conversion exit AC152, internal->external for field EXPENSES
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCJ_RATE_ALV-EXPENSES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCJ_RATE_ALV-EXPENSES.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RECEIPTS
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_IDCJ_RATE_ALV-RECEIPTS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCJ_RATE_ALV-RECEIPTS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field CJ_UKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_IDCJ_RATE_ALV-CJ_UKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDCJ_RATE_ALV-CJ_UKURS.
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_IDCJ_RATE_ALV_STR, 
BUKRS TYPE STRING,
CAJO_NUMBER TYPE STRING,
CURRENCY TYPE STRING,
TRANSACT_NAME TYPE STRING,
POSTING_NUMBER TYPE STRING,
DOCUMENT_STATUS TYPE STRING,
DOC_STATUS_T TYPE STRING,
BELNR TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
REFERENCE TYPE STRING,
BUDAT TYPE STRING,
EXPENSES TYPE STRING,
RECEIPTS TYPE STRING,
CJ_UKURS TYPE STRING,
POSITION_TEXT TYPE STRING,
LIGHT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDCJ_RATE_ALV_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_IDCJ_RATE_ALV_STR-BUKRS sy-vline 
WA_IDCJ_RATE_ALV_STR-CAJO_NUMBER sy-vline 
WA_IDCJ_RATE_ALV_STR-CURRENCY sy-vline 
WA_IDCJ_RATE_ALV_STR-TRANSACT_NAME sy-vline 
WA_IDCJ_RATE_ALV_STR-POSTING_NUMBER sy-vline 
WA_IDCJ_RATE_ALV_STR-DOCUMENT_STATUS sy-vline 
WA_IDCJ_RATE_ALV_STR-DOC_STATUS_T sy-vline 
WA_IDCJ_RATE_ALV_STR-BELNR sy-vline 
WA_IDCJ_RATE_ALV_STR-CPUDT sy-vline 
WA_IDCJ_RATE_ALV_STR-CPUTM sy-vline 
WA_IDCJ_RATE_ALV_STR-REFERENCE sy-vline 
WA_IDCJ_RATE_ALV_STR-BUDAT sy-vline 
WA_IDCJ_RATE_ALV_STR-EXPENSES sy-vline 
WA_IDCJ_RATE_ALV_STR-RECEIPTS sy-vline 
WA_IDCJ_RATE_ALV_STR-CJ_UKURS sy-vline 
WA_IDCJ_RATE_ALV_STR-POSITION_TEXT sy-vline 
WA_IDCJ_RATE_ALV_STR-LIGHT sy-vline      INTO ld_text SEPARATED BY SPACE.

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