ABAP Select data from SAP table ODQREQSSN_V into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ODQREQSSN_V
*  INTO TABLE @DATA(IT_ODQREQSSN_V2).
*--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_ODQREQSSN_V INDEX 1 INTO DATA(WA_ODQREQSSN_V2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ODQREQSSN_V>-CLIENT = 1.
<ODQREQSSN_V>-COMPOSITE_RID = 1.
<ODQREQSSN_V>-MODELNAME = 1.
<ODQREQSSN_V>-QUEUENAME = 1.
<ODQREQSSN_V>-SELECTION_COND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ODQREQSSN_V-COMP_STATUS_ICON, sy-vline,
  WA_ODQREQSSN_V-SUBSCRIBER_TYPE, sy-vline,
  WA_ODQREQSSN_V-SUBSCRIBER_ID, sy-vline,
  WA_ODQREQSSN_V-SUBSCRIPTION_ID, sy-vline,
  WA_ODQREQSSN_V-EXTRACTION_MODE, sy-vline,
  WA_ODQREQSSN_V-REALTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ODQREQSSN_V 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_ODQREQSSN_V 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_ODQREQSSN_V INTO WA_ODQREQSSN_V.


*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 ODQTS, internal->external for field COMPOSITE_RID
CALL FUNCTION 'CONVERSION_EXIT_ODQTS_OUTPUT'
  EXPORTING
    input =                      WA_ODQREQSSN_V-COMPOSITE_RID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ODQREQSSN_V-COMPOSITE_RID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ODQTS, internal->external for field SUBSCRIPTION_ID
CALL FUNCTION 'CONVERSION_EXIT_ODQTS_OUTPUT'
  EXPORTING
    input =                      WA_ODQREQSSN_V-SUBSCRIPTION_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ODQREQSSN_V-SUBSCRIPTION_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ODQTS, internal->external for field TSN_HIGH
CALL FUNCTION 'CONVERSION_EXIT_ODQTS_OUTPUT'
  EXPORTING
    input =                      WA_ODQREQSSN_V-TSN_HIGH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ODQREQSSN_V-TSN_HIGH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ODQTS, internal->external for field TSN_LOW
CALL FUNCTION 'CONVERSION_EXIT_ODQTS_OUTPUT'
  EXPORTING
    input =                      WA_ODQREQSSN_V-TSN_LOW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ODQREQSSN_V-TSN_LOW.
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_ODQREQSSN_V_STR, 
CLIENT TYPE STRING,
COMPOSITE_RID TYPE STRING,
MODELNAME TYPE STRING,
QUEUENAME TYPE STRING,
SELECTION_COND TYPE STRING,
COMP_STATUS_ICON TYPE STRING,
SUBSCRIBER_TYPE TYPE STRING,
SUBSCRIBER_ID TYPE STRING,
SUBSCRIPTION_ID TYPE STRING,
EXTRACTION_MODE TYPE STRING,
REALTIME TYPE STRING,
TSN_HIGH TYPE STRING,
TSN_LOW TYPE STRING,
TABNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ODQREQSSN_V_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_ODQREQSSN_V_STR-CLIENT sy-vline 
WA_ODQREQSSN_V_STR-COMPOSITE_RID sy-vline 
WA_ODQREQSSN_V_STR-MODELNAME sy-vline 
WA_ODQREQSSN_V_STR-QUEUENAME sy-vline 
WA_ODQREQSSN_V_STR-SELECTION_COND sy-vline 
WA_ODQREQSSN_V_STR-COMP_STATUS_ICON sy-vline 
WA_ODQREQSSN_V_STR-SUBSCRIBER_TYPE sy-vline 
WA_ODQREQSSN_V_STR-SUBSCRIBER_ID sy-vline 
WA_ODQREQSSN_V_STR-SUBSCRIPTION_ID sy-vline 
WA_ODQREQSSN_V_STR-EXTRACTION_MODE sy-vline 
WA_ODQREQSSN_V_STR-REALTIME sy-vline 
WA_ODQREQSSN_V_STR-TSN_HIGH sy-vline 
WA_ODQREQSSN_V_STR-TSN_LOW sy-vline 
WA_ODQREQSSN_V_STR-TABNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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