ABAP Select data from SAP table KBED_AVCHK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KBED_AVCHK
*  INTO TABLE @DATA(IT_KBED_AVCHK2).
*--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_KBED_AVCHK INDEX 1 INTO DATA(WA_KBED_AVCHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KBED_AVCHK>-MANDT = 1.
<KBED_AVCHK>-BEDID = 1.
<KBED_AVCHK>-BEDZL = 1.
<KBED_AVCHK>-CANUM = 1.
<KBED_AVCHK>-ARBID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KBED_AVCHK-TYPKZ, sy-vline,
  WA_KBED_AVCHK-OBJKZ, sy-vline,
  WA_KBED_AVCHK-KAPID, sy-vline,
  WA_KBED_AVCHK-BEDKZ, sy-vline,
  WA_KBED_AVCHK-KRUEREST, sy-vline,
  WA_KBED_AVCHK-KBEAREST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KBED_AVCHK 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_KBED_AVCHK 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_KBED_AVCHK INTO WA_KBED_AVCHK.


*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 KEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KBED_AVCHK-KEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBED_AVCHK-KEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KBED_AVCHK-PLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBED_AVCHK-PLNUM.
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_KBED_AVCHK_STR, 
MANDT TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
CANUM TYPE STRING,
ARBID TYPE STRING,
TYPKZ TYPE STRING,
OBJKZ TYPE STRING,
KAPID TYPE STRING,
BEDKZ TYPE STRING,
KRUEREST TYPE STRING,
KBEAREST TYPE STRING,
KABRREST TYPE STRING,
KEINH TYPE STRING,
FSTAD TYPE STRING,
FSTAU TYPE STRING,
FENDD TYPE STRING,
FENDU TYPE STRING,
SSTAD TYPE STRING,
SSTAU TYPE STRING,
SENDD TYPE STRING,
SENDU TYPE STRING,
KPVER TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
PLNUM TYPE STRING,
SAFNR TYPE STRING,
OTYPE TYPE STRING,
PERNR TYPE STRING,
CANUMF TYPE STRING,
SPLIT TYPE STRING,
FSSBD TYPE STRING,
FSSBZ TYPE STRING,
FSSAD TYPE STRING,
FSSAZ TYPE STRING,
SSSBD TYPE STRING,
SSSBZ TYPE STRING,
SSSAD TYPE STRING,
SSSAZ TYPE STRING,
PLSCN TYPE STRING,
BSTKZ TYPE STRING,
BEDZLF TYPE STRING,
PHASE_KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KBED_AVCHK_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_KBED_AVCHK_STR-MANDT sy-vline 
WA_KBED_AVCHK_STR-BEDID sy-vline 
WA_KBED_AVCHK_STR-BEDZL sy-vline 
WA_KBED_AVCHK_STR-CANUM sy-vline 
WA_KBED_AVCHK_STR-ARBID sy-vline 
WA_KBED_AVCHK_STR-TYPKZ sy-vline 
WA_KBED_AVCHK_STR-OBJKZ sy-vline 
WA_KBED_AVCHK_STR-KAPID sy-vline 
WA_KBED_AVCHK_STR-BEDKZ sy-vline 
WA_KBED_AVCHK_STR-KRUEREST sy-vline 
WA_KBED_AVCHK_STR-KBEAREST sy-vline 
WA_KBED_AVCHK_STR-KABRREST sy-vline 
WA_KBED_AVCHK_STR-KEINH sy-vline 
WA_KBED_AVCHK_STR-FSTAD sy-vline 
WA_KBED_AVCHK_STR-FSTAU sy-vline 
WA_KBED_AVCHK_STR-FENDD sy-vline 
WA_KBED_AVCHK_STR-FENDU sy-vline 
WA_KBED_AVCHK_STR-SSTAD sy-vline 
WA_KBED_AVCHK_STR-SSTAU sy-vline 
WA_KBED_AVCHK_STR-SENDD sy-vline 
WA_KBED_AVCHK_STR-SENDU sy-vline 
WA_KBED_AVCHK_STR-KPVER sy-vline 
WA_KBED_AVCHK_STR-AUFPL sy-vline 
WA_KBED_AVCHK_STR-APLZL sy-vline 
WA_KBED_AVCHK_STR-PLNUM sy-vline 
WA_KBED_AVCHK_STR-SAFNR sy-vline 
WA_KBED_AVCHK_STR-OTYPE sy-vline 
WA_KBED_AVCHK_STR-PERNR sy-vline 
WA_KBED_AVCHK_STR-CANUMF sy-vline 
WA_KBED_AVCHK_STR-SPLIT sy-vline 
WA_KBED_AVCHK_STR-FSSBD sy-vline 
WA_KBED_AVCHK_STR-FSSBZ sy-vline 
WA_KBED_AVCHK_STR-FSSAD sy-vline 
WA_KBED_AVCHK_STR-FSSAZ sy-vline 
WA_KBED_AVCHK_STR-SSSBD sy-vline 
WA_KBED_AVCHK_STR-SSSBZ sy-vline 
WA_KBED_AVCHK_STR-SSSAD sy-vline 
WA_KBED_AVCHK_STR-SSSAZ sy-vline 
WA_KBED_AVCHK_STR-PLSCN sy-vline 
WA_KBED_AVCHK_STR-BSTKZ sy-vline 
WA_KBED_AVCHK_STR-BEDZLF sy-vline 
WA_KBED_AVCHK_STR-PHASE_KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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