ABAP Select data from SAP table IBKK52LDB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBKK52LDB 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 IBKK52LDB. 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 IBKK52LDB 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_IBKK52LDB TYPE STANDARD TABLE OF IBKK52LDB,
      WA_IBKK52LDB TYPE IBKK52LDB,
      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: <IBKK52LDB> TYPE IBKK52LDB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IBKK52LDB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IBKK52LDB
  INTO TABLE IT_IBKK52LDB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBKK52LDB
*  INTO TABLE @DATA(IT_IBKK52LDB2).
*--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_IBKK52LDB INDEX 1 INTO DATA(WA_IBKK52LDB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IBKK52LDB ASSIGNING <IBKK52LDB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBKK52LDB>-BKKRS = 1.
<IBKK52LDB>-ACNUM_INT = 1.
<IBKK52LDB>-PARTNER = 1.
<IBKK52LDB>-RLTYP = 1.
<IBKK52LDB>-T_RLTYP = 1.

ENDLOOP.

LOOP AT IT_IBKK52LDB INTO WA_IBKK52LDB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBKK52LDB-ADDRNUMBER, sy-vline,
  WA_IBKK52LDB-NAME1, sy-vline,
  WA_IBKK52LDB-NAME2, sy-vline,
  WA_IBKK52LDB-CITY1, sy-vline,
  WA_IBKK52LDB-ADDRESS1, sy-vline,
  WA_IBKK52LDB-XADSTND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBKK52LDB 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_IBKK52LDB 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_IBKK52LDB INTO WA_IBKK52LDB.


*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_IBKK52LDB-ACNUM_INT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK52LDB-ACNUM_INT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK52LDB-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK52LDB-PARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IBKK52LDB-ADDRNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IBKK52LDB-ADDRNUMBER.
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_IBKK52LDB_STR, 
BKKRS TYPE STRING,
ACNUM_INT TYPE STRING,
PARTNER TYPE STRING,
RLTYP TYPE STRING,
T_RLTYP TYPE STRING,
ADDRNUMBER TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
CITY1 TYPE STRING,
ADDRESS1 TYPE STRING,
XADSTND TYPE STRING,
TSENDTYPE TYPE STRING,
SENDTYPE TYPE STRING,
XADFIX TYPE STRING,
XBKSTORIG TYPE STRING,
BKST_SENDTYPE TYPE STRING,
BKST_FORMAT TYPE STRING,
BIRTHDT TYPE STRING,
FLG_MARK TYPE STRING,
UCI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBKK52LDB_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_IBKK52LDB_STR-BKKRS sy-vline 
WA_IBKK52LDB_STR-ACNUM_INT sy-vline 
WA_IBKK52LDB_STR-PARTNER sy-vline 
WA_IBKK52LDB_STR-RLTYP sy-vline 
WA_IBKK52LDB_STR-T_RLTYP sy-vline 
WA_IBKK52LDB_STR-ADDRNUMBER sy-vline 
WA_IBKK52LDB_STR-NAME1 sy-vline 
WA_IBKK52LDB_STR-NAME2 sy-vline 
WA_IBKK52LDB_STR-CITY1 sy-vline 
WA_IBKK52LDB_STR-ADDRESS1 sy-vline 
WA_IBKK52LDB_STR-XADSTND sy-vline 
WA_IBKK52LDB_STR-TSENDTYPE sy-vline 
WA_IBKK52LDB_STR-SENDTYPE sy-vline 
WA_IBKK52LDB_STR-XADFIX sy-vline 
WA_IBKK52LDB_STR-XBKSTORIG sy-vline 
WA_IBKK52LDB_STR-BKST_SENDTYPE sy-vline 
WA_IBKK52LDB_STR-BKST_FORMAT sy-vline 
WA_IBKK52LDB_STR-BIRTHDT sy-vline 
WA_IBKK52LDB_STR-FLG_MARK sy-vline 
WA_IBKK52LDB_STR-UCI sy-vline      INTO ld_text SEPARATED BY SPACE.

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