ABAP Select data from SAP table CYKBED_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CYKBED_TAB
*  INTO TABLE @DATA(IT_CYKBED_TAB2).
*--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_CYKBED_TAB INDEX 1 INTO DATA(WA_CYKBED_TAB2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CYKBED_TAB-FUNKTION1, sy-vline,
  WA_CYKBED_TAB-FUNKTION2, sy-vline,
  WA_CYKBED_TAB-FUNKTION3, sy-vline,
  WA_CYKBED_TAB-FUNKTION4, sy-vline,
  WA_CYKBED_TAB-ARBID, sy-vline,
  WA_CYKBED_TAB-DESTGRUPPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CYKBED_TAB 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_CYKBED_TAB 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_CYKBED_TAB INTO WA_CYKBED_TAB.


*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 VGE01
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-VGE01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-VGE01.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE02
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-VGE02
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-VGE02.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE03
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-VGE03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-VGE03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE04
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-VGE04
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-VGE04.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE05
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-VGE05
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-VGE05.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VGE06
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-VGE06
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-VGE06.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field ARBEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CYKBED_TAB-ARBEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CYKBED_TAB-ARBEH.
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_CYKBED_TAB_STR, 
MANDT TYPE STRING,
BEDID TYPE STRING,
BEDZL TYPE STRING,
CANUM TYPE STRING,
INDEX TYPE STRING,
FUNKTION1 TYPE STRING,
FUNKTION2 TYPE STRING,
FUNKTION3 TYPE STRING,
FUNKTION4 TYPE STRING,
ARBID TYPE STRING,
DESTGRUPPE TYPE STRING,
DESTKOMBI TYPE STRING,
EPANF TYPE STRING,
EPANZ TYPE STRING,
EPEND TYPE STRING,
EPENZ TYPE STRING,
VGW01 TYPE STRING,
VGE01 TYPE STRING,
VGW02 TYPE STRING,
VGE02 TYPE STRING,
VGW03 TYPE STRING,
VGE03 TYPE STRING,
VGW04 TYPE STRING,
VGE04 TYPE STRING,
VGW05 TYPE STRING,
VGE05 TYPE STRING,
VGW06 TYPE STRING,
VGE06 TYPE STRING,
DAUNE TYPE STRING,
DAUNO TYPE STRING,
ARBEH TYPE STRING,
ARBEI TYPE STRING,
VGW_VALID TYPE STRING,
CY_SEQNRV TYPE STRING,
SEQ_VALID TYPE STRING,
KAPID TYPE STRING,
PERNR TYPE STRING,
OTYPE TYPE STRING,
ROW_NUMBER TYPE STRING,
CHART_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CYKBED_TAB_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_CYKBED_TAB_STR-MANDT sy-vline 
WA_CYKBED_TAB_STR-BEDID sy-vline 
WA_CYKBED_TAB_STR-BEDZL sy-vline 
WA_CYKBED_TAB_STR-CANUM sy-vline 
WA_CYKBED_TAB_STR-INDEX sy-vline 
WA_CYKBED_TAB_STR-FUNKTION1 sy-vline 
WA_CYKBED_TAB_STR-FUNKTION2 sy-vline 
WA_CYKBED_TAB_STR-FUNKTION3 sy-vline 
WA_CYKBED_TAB_STR-FUNKTION4 sy-vline 
WA_CYKBED_TAB_STR-ARBID sy-vline 
WA_CYKBED_TAB_STR-DESTGRUPPE sy-vline 
WA_CYKBED_TAB_STR-DESTKOMBI sy-vline 
WA_CYKBED_TAB_STR-EPANF sy-vline 
WA_CYKBED_TAB_STR-EPANZ sy-vline 
WA_CYKBED_TAB_STR-EPEND sy-vline 
WA_CYKBED_TAB_STR-EPENZ sy-vline 
WA_CYKBED_TAB_STR-VGW01 sy-vline 
WA_CYKBED_TAB_STR-VGE01 sy-vline 
WA_CYKBED_TAB_STR-VGW02 sy-vline 
WA_CYKBED_TAB_STR-VGE02 sy-vline 
WA_CYKBED_TAB_STR-VGW03 sy-vline 
WA_CYKBED_TAB_STR-VGE03 sy-vline 
WA_CYKBED_TAB_STR-VGW04 sy-vline 
WA_CYKBED_TAB_STR-VGE04 sy-vline 
WA_CYKBED_TAB_STR-VGW05 sy-vline 
WA_CYKBED_TAB_STR-VGE05 sy-vline 
WA_CYKBED_TAB_STR-VGW06 sy-vline 
WA_CYKBED_TAB_STR-VGE06 sy-vline 
WA_CYKBED_TAB_STR-DAUNE sy-vline 
WA_CYKBED_TAB_STR-DAUNO sy-vline 
WA_CYKBED_TAB_STR-ARBEH sy-vline 
WA_CYKBED_TAB_STR-ARBEI sy-vline 
WA_CYKBED_TAB_STR-VGW_VALID sy-vline 
WA_CYKBED_TAB_STR-CY_SEQNRV sy-vline 
WA_CYKBED_TAB_STR-SEQ_VALID sy-vline 
WA_CYKBED_TAB_STR-KAPID sy-vline 
WA_CYKBED_TAB_STR-PERNR sy-vline 
WA_CYKBED_TAB_STR-OTYPE sy-vline 
WA_CYKBED_TAB_STR-ROW_NUMBER sy-vline 
WA_CYKBED_TAB_STR-CHART_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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