ABAP Select data from SAP table BKONP into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BKONP
*  INTO TABLE @DATA(IT_BKONP2).
*--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_BKONP INDEX 1 INTO DATA(WA_BKONP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BKONP ASSIGNING <BKONP>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<BKONP>-STYPE = 1.
<BKONP>-TBNAM = 1.
<BKONP>-KSCHL = 1.
<BKONP>-KBETR = 1.
<BKONP>-KONWA = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BKONP-KPEIN, sy-vline,
WA_BKONP-KMEIN, sy-vline,
WA_BKONP-LIFNR, sy-vline,
WA_BKONP-DATAB, sy-vline,
WA_BKONP-DATBI, sy-vline,
WA_BKONP-MXWRT, sy-vline.
ENDLOOP. *Add any further fields from structure WA_BKONP 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_BKONP 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_BKONP INTO WA_BKONP. *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 CUNIT, internal->external for field KMEIN CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_BKONP-KMEIN IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_BKONP-KMEIN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field MEBME CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT' EXPORTING input = WA_BKONP-MEBME IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_BKONP-MEBME.
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_BKONP_STR,
STYPE TYPE STRING,
TBNAM TYPE STRING,
KSCHL TYPE STRING,
KBETR TYPE STRING,
KONWA TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
LIFNR TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
MXWRT TYPE STRING,
GKWRT TYPE STRING,
STFKZ TYPE STRING,
KZNEP TYPE STRING,
EIGKO TYPE STRING,
MEBME TYPE STRING,END OF T_EKKO_STR. DATA: WA_BKONP_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_BKONP_STR-STYPE sy-vline
WA_BKONP_STR-TBNAM sy-vline
WA_BKONP_STR-KSCHL sy-vline
WA_BKONP_STR-KBETR sy-vline
WA_BKONP_STR-KONWA sy-vline
WA_BKONP_STR-KPEIN sy-vline
WA_BKONP_STR-KMEIN sy-vline
WA_BKONP_STR-LIFNR sy-vline
WA_BKONP_STR-DATAB sy-vline
WA_BKONP_STR-DATBI sy-vline
WA_BKONP_STR-MXWRT sy-vline
WA_BKONP_STR-GKWRT sy-vline
WA_BKONP_STR-STFKZ sy-vline
WA_BKONP_STR-KZNEP sy-vline
WA_BKONP_STR-EIGKO sy-vline
WA_BKONP_STR-MEBME sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.