ABAP Select data from SAP table BWQUICK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BWQUICK
*  INTO TABLE @DATA(IT_BWQUICK2).
*--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_BWQUICK INDEX 1 INTO DATA(WA_BWQUICK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BWQUICK>-MARK = 1.
<BWQUICK>-PERNR = 1.
<BWQUICK>-ENAME = 1.
<BWQUICK>-BEWID = 1.
<BWQUICK>-BTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BWQUICK-BEGDA, sy-vline,
  WA_BWQUICK-ENDDA, sy-vline,
  WA_BWQUICK-ABRDT, sy-vline,
  WA_BWQUICK-ABBEG, sy-vline,
  WA_BWQUICK-AWART, sy-vline,
  WA_BWQUICK-TARIF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BWQUICK 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_BWQUICK 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_BWQUICK INTO WA_BWQUICK.


*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 SPDEV, internal->external for field PDEST
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_BWQUICK-PDEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BWQUICK-PDEST.
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_BWQUICK_STR, 
MARK TYPE STRING,
PERNR TYPE STRING,
ENAME TYPE STRING,
BEWID TYPE STRING,
BTIME TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ABRDT TYPE STRING,
ABBEG TYPE STRING,
AWART TYPE STRING,
TARIF TYPE STRING,
WAERS TYPE STRING,
DZUBT TYPE STRING,
PDEST TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BWQUICK_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_BWQUICK_STR-MARK sy-vline 
WA_BWQUICK_STR-PERNR sy-vline 
WA_BWQUICK_STR-ENAME sy-vline 
WA_BWQUICK_STR-BEWID sy-vline 
WA_BWQUICK_STR-BTIME sy-vline 
WA_BWQUICK_STR-BEGDA sy-vline 
WA_BWQUICK_STR-ENDDA sy-vline 
WA_BWQUICK_STR-ABRDT sy-vline 
WA_BWQUICK_STR-ABBEG sy-vline 
WA_BWQUICK_STR-AWART sy-vline 
WA_BWQUICK_STR-TARIF sy-vline 
WA_BWQUICK_STR-WAERS sy-vline 
WA_BWQUICK_STR-DZUBT sy-vline 
WA_BWQUICK_STR-PDEST sy-vline      INTO ld_text SEPARATED BY SPACE.

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