ABAP Select data from SAP table BSKRF_ALV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BSKRF_ALV
*  INTO TABLE @DATA(IT_BSKRF_ALV2).
*--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_BSKRF_ALV INDEX 1 INTO DATA(WA_BSKRF_ALV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BSKRF_ALV>-NODE_KEY = 1.
<BSKRF_ALV>-MATNR = 1.
<BSKRF_ALV>-MAKTX = 1.
<BSKRF_ALV>-WERKS = 1.
<BSKRF_ALV>-LGORT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BSKRF_ALV-CHARG, sy-vline,
  WA_BSKRF_ALV-ICON_LIGHT, sy-vline,
  WA_BSKRF_ALV-ICON_EXCLUDE, sy-vline,
  WA_BSKRF_ALV-BSKRF_P, sy-vline,
  WA_BSKRF_ALV-CRF_P, sy-vline,
  WA_BSKRF_ALV-PROZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BSKRF_ALV 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_BSKRF_ALV 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_BSKRF_ALV INTO WA_BSKRF_ALV.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_BSKRF_ALV-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSKRF_ALV-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BSKRF_ALV-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSKRF_ALV-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BSKRF_ALV-MEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BSKRF_ALV-MEINH.
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_BSKRF_ALV_STR, 
NODE_KEY TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
ICON_LIGHT TYPE STRING,
ICON_EXCLUDE TYPE STRING,
BSKRF_P TYPE STRING,
CRF_P TYPE STRING,
PROZ TYPE STRING,
CLABS TYPE STRING,
MEINS TYPE STRING,
AME_CLABS TYPE STRING,
MEINH TYPE STRING,
ATWRT TYPE STRING,
ZUSTD TYPE STRING,
ICON_ZUSTD TYPE STRING,
PLA_C TYPE STRING,
ATBEZ TYPE STRING,
NOT_CL TYPE STRING,
AUSREIS TYPE STRING,
CUM_KOR TYPE STRING,
BSKRF_DB TYPE STRING,
UPDATED TYPE STRING,
WARNING TYPE STRING,
ERROR TYPE STRING,
MSEHL_BME TYPE STRING,
MSEHL_AME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BSKRF_ALV_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_BSKRF_ALV_STR-NODE_KEY sy-vline 
WA_BSKRF_ALV_STR-MATNR sy-vline 
WA_BSKRF_ALV_STR-MAKTX sy-vline 
WA_BSKRF_ALV_STR-WERKS sy-vline 
WA_BSKRF_ALV_STR-LGORT sy-vline 
WA_BSKRF_ALV_STR-CHARG sy-vline 
WA_BSKRF_ALV_STR-ICON_LIGHT sy-vline 
WA_BSKRF_ALV_STR-ICON_EXCLUDE sy-vline 
WA_BSKRF_ALV_STR-BSKRF_P sy-vline 
WA_BSKRF_ALV_STR-CRF_P sy-vline 
WA_BSKRF_ALV_STR-PROZ sy-vline 
WA_BSKRF_ALV_STR-CLABS sy-vline 
WA_BSKRF_ALV_STR-MEINS sy-vline 
WA_BSKRF_ALV_STR-AME_CLABS sy-vline 
WA_BSKRF_ALV_STR-MEINH sy-vline 
WA_BSKRF_ALV_STR-ATWRT sy-vline 
WA_BSKRF_ALV_STR-ZUSTD sy-vline 
WA_BSKRF_ALV_STR-ICON_ZUSTD sy-vline 
WA_BSKRF_ALV_STR-PLA_C sy-vline 
WA_BSKRF_ALV_STR-ATBEZ sy-vline 
WA_BSKRF_ALV_STR-NOT_CL sy-vline 
WA_BSKRF_ALV_STR-AUSREIS sy-vline 
WA_BSKRF_ALV_STR-CUM_KOR sy-vline 
WA_BSKRF_ALV_STR-BSKRF_DB sy-vline 
WA_BSKRF_ALV_STR-UPDATED sy-vline 
WA_BSKRF_ALV_STR-WARNING sy-vline 
WA_BSKRF_ALV_STR-ERROR sy-vline 
WA_BSKRF_ALV_STR-MSEHL_BME sy-vline 
WA_BSKRF_ALV_STR-MSEHL_AME sy-vline      INTO ld_text SEPARATED BY SPACE.

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