ABAP Select data from SAP table BKK_STR_BKK40_REL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BKK_STR_BKK40_REL 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 BKK_STR_BKK40_REL. 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 BKK_STR_BKK40_REL 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_BKK_STR_BKK40_REL TYPE STANDARD TABLE OF BKK_STR_BKK40_REL,
      WA_BKK_STR_BKK40_REL TYPE BKK_STR_BKK40_REL,
      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: <BKK_STR_BKK40_REL> TYPE BKK_STR_BKK40_REL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BKK_STR_BKK40_REL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BKK_STR_BKK40_REL
  INTO TABLE IT_BKK_STR_BKK40_REL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKK_STR_BKK40_REL
*  INTO TABLE @DATA(IT_BKK_STR_BKK40_REL2).
*--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_BKK_STR_BKK40_REL INDEX 1 INTO DATA(WA_BKK_STR_BKK40_REL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BKK_STR_BKK40_REL ASSIGNING <BKK_STR_BKK40_REL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKK_STR_BKK40_REL>-BKKRS = 1.
<BKK_STR_BKK40_REL>-ACNUM_INT = 1.
<BKK_STR_BKK40_REL>-XDELE = 1.
<BKK_STR_BKK40_REL>-SEARCH1 = 1.
<BKK_STR_BKK40_REL>-SEARCH2 = 1.

ENDLOOP.

LOOP AT IT_BKK_STR_BKK40_REL INTO WA_BKK_STR_BKK40_REL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKK_STR_BKK40_REL-ERFUSER, sy-vline,
  WA_BKK_STR_BKK40_REL-ERFDATE, sy-vline,
  WA_BKK_STR_BKK40_REL-ERFTIME, sy-vline,
  WA_BKK_STR_BKK40_REL-AENUSER, sy-vline,
  WA_BKK_STR_BKK40_REL-AENDATE, sy-vline,
  WA_BKK_STR_BKK40_REL-AENTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BKK_STR_BKK40_REL 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_BKK_STR_BKK40_REL 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_BKK_STR_BKK40_REL INTO WA_BKK_STR_BKK40_REL.


*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 ACNUM_INT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BKK_STR_BKK40_REL-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BKK_STR_BKK40_REL-ACNUM_INT.
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_BKK_STR_BKK40_REL_STR, 
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
XDELE TYPE STRING,
SEARCH1 TYPE STRING,
SEARCH2 TYPE STRING,
ERFUSER TYPE STRING,
ERFDATE TYPE STRING,
ERFTIME TYPE STRING,
AENUSER TYPE STRING,
AENDATE TYPE STRING,
AENTIME TYPE STRING,
STATUS TYPE STRING,
XPRINT TYPE STRING,
DELDATE TYPE STRING,
PRODDATE TYPE STRING,
BALDATE TYPE STRING,
STATUS_ADD TYPE STRING,
XOFFER TYPE STRING,
XCHKDIG TYPE STRING,
OPENDATE TYPE STRING,
XARCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BKK_STR_BKK40_REL_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_BKK_STR_BKK40_REL_STR-BKKRS sy-vline 
WA_BKK_STR_BKK40_REL_STR-ACNUM_INT sy-vline 
WA_BKK_STR_BKK40_REL_STR-XDELE sy-vline 
WA_BKK_STR_BKK40_REL_STR-SEARCH1 sy-vline 
WA_BKK_STR_BKK40_REL_STR-SEARCH2 sy-vline 
WA_BKK_STR_BKK40_REL_STR-ERFUSER sy-vline 
WA_BKK_STR_BKK40_REL_STR-ERFDATE sy-vline 
WA_BKK_STR_BKK40_REL_STR-ERFTIME sy-vline 
WA_BKK_STR_BKK40_REL_STR-AENUSER sy-vline 
WA_BKK_STR_BKK40_REL_STR-AENDATE sy-vline 
WA_BKK_STR_BKK40_REL_STR-AENTIME sy-vline 
WA_BKK_STR_BKK40_REL_STR-STATUS sy-vline 
WA_BKK_STR_BKK40_REL_STR-XPRINT sy-vline 
WA_BKK_STR_BKK40_REL_STR-DELDATE sy-vline 
WA_BKK_STR_BKK40_REL_STR-PRODDATE sy-vline 
WA_BKK_STR_BKK40_REL_STR-BALDATE sy-vline 
WA_BKK_STR_BKK40_REL_STR-STATUS_ADD sy-vline 
WA_BKK_STR_BKK40_REL_STR-XOFFER sy-vline 
WA_BKK_STR_BKK40_REL_STR-XCHKDIG sy-vline 
WA_BKK_STR_BKK40_REL_STR-OPENDATE sy-vline 
WA_BKK_STR_BKK40_REL_STR-XARCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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