ABAP Select data from SAP table FEB_BSPROC_QUERY_PARAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FEB_BSPROC_QUERY_PARAM
*  INTO TABLE @DATA(IT_FEB_BSPROC_QUERY_PARAM2).
*--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_FEB_BSPROC_QUERY_PARAM INDEX 1 INTO DATA(WA_FEB_BSPROC_QUERY_PARAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FEB_BSPROC_QUERY_PARAM>-BUKRS = 1.
<FEB_BSPROC_QUERY_PARAM>-KUNNR = 1.
<FEB_BSPROC_QUERY_PARAM>-LIFNR = 1.
<FEB_BSPROC_QUERY_PARAM>-SAKNR = 1.
<FEB_BSPROC_QUERY_PARAM>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FEB_BSPROC_QUERY_PARAM-BUDAT, sy-vline,
  WA_FEB_BSPROC_QUERY_PARAM-REBZG, sy-vline,
  WA_FEB_BSPROC_QUERY_PARAM-WRBTR, sy-vline,
  WA_FEB_BSPROC_QUERY_PARAM-XBLNR, sy-vline,
  WA_FEB_BSPROC_QUERY_PARAM-MABER, sy-vline,
  WA_FEB_BSPROC_QUERY_PARAM-VERTN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FEB_BSPROC_QUERY_PARAM 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_FEB_BSPROC_QUERY_PARAM 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_FEB_BSPROC_QUERY_PARAM INTO WA_FEB_BSPROC_QUERY_PARAM.


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

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

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

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

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

*Conversion exit AC132, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FEB_BSPROC_QUERY_PARAM-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_BSPROC_QUERY_PARAM-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERTN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FEB_BSPROC_QUERY_PARAM-VERTN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FEB_BSPROC_QUERY_PARAM-VERTN.
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_FEB_BSPROC_QUERY_PARAM_STR, 
BUKRS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
SAKNR TYPE STRING,
BELNR TYPE STRING,
BUDAT TYPE STRING,
REBZG TYPE STRING,
WRBTR TYPE STRING,
XBLNR TYPE STRING,
MABER TYPE STRING,
VERTN TYPE STRING,
AGUMS TYPE STRING,
XREF1 TYPE STRING,
XREF2 TYPE STRING,
XREF3 TYPE STRING,
SGTXT TYPE STRING,
VALUT TYPE STRING,
CHECT TYPE STRING,
ZUONR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FEB_BSPROC_QUERY_PARAM_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_FEB_BSPROC_QUERY_PARAM_STR-BUKRS sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-KUNNR sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-LIFNR sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-SAKNR sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-BELNR sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-BUDAT sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-REBZG sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-WRBTR sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-XBLNR sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-MABER sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-VERTN sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-AGUMS sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-XREF1 sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-XREF2 sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-XREF3 sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-SGTXT sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-VALUT sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-CHECT sy-vline 
WA_FEB_BSPROC_QUERY_PARAM_STR-ZUONR sy-vline      INTO ld_text SEPARATED BY SPACE.

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