ABAP Select data from SAP table CNV_21500_PCL2_WY_PBE01EXTRA28 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNV_21500_PCL2_WY_PBE01EXTRA28 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 CNV_21500_PCL2_WY_PBE01EXTRA28. 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 CNV_21500_PCL2_WY_PBE01EXTRA28 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_CNV_21500_PCL2_WY_PBE01EXTRA28 TYPE STANDARD TABLE OF CNV_21500_PCL2_WY_PBE01EXTRA28,
      WA_CNV_21500_PCL2_WY_PBE01EXTRA28 TYPE CNV_21500_PCL2_WY_PBE01EXTRA28,
      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: <CNV_21500_PCL2_WY_PBE01EXTRA28> TYPE CNV_21500_PCL2_WY_PBE01EXTRA28.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNV_21500_PCL2_WY_PBE01EXTRA28.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNV_21500_PCL2_WY_PBE01EXTRA28
  INTO TABLE IT_CNV_21500_PCL2_WY_PBE01EXTRA28.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_21500_PCL2_WY_PBE01EXTRA28
*  INTO TABLE @DATA(IT_CNV_21500_PCL2_WY_PBE01EXTRA282).
*--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_CNV_21500_PCL2_WY_PBE01EXTRA28 INDEX 1 INTO DATA(WA_CNV_21500_PCL2_WY_PBE01EXTRA282).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNV_21500_PCL2_WY_PBE01EXTRA28 ASSIGNING <CNV_21500_PCL2_WY_PBE01EXTRA28>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_21500_PCL2_WY_PBE01EXTRA28>-WERKS = 1.
<CNV_21500_PCL2_WY_PBE01EXTRA28>-BTRTL = 1.
<CNV_21500_PCL2_WY_PBE01EXTRA28>-CUSTOM1 = 1.
<CNV_21500_PCL2_WY_PBE01EXTRA28>-CUSTOM2 = 1.
<CNV_21500_PCL2_WY_PBE01EXTRA28>-CUSTOM3 = 1.

ENDLOOP.

LOOP AT IT_CNV_21500_PCL2_WY_PBE01EXTRA28 INTO WA_CNV_21500_PCL2_WY_PBE01EXTRA28.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_21500_PCL2_WY_PBE01EXTRA28-CUSTOM4, sy-vline,
  WA_CNV_21500_PCL2_WY_PBE01EXTRA28-CUSTOM5, sy-vline,
  WA_CNV_21500_PCL2_WY_PBE01EXTRA28-DEPENSTXT1, sy-vline,
  WA_CNV_21500_PCL2_WY_PBE01EXTRA28-DEPENSTXT2, sy-vline,
  WA_CNV_21500_PCL2_WY_PBE01EXTRA28-DEPENSTXT3, sy-vline,
  WA_CNV_21500_PCL2_WY_PBE01EXTRA28-DEPENSTXT4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_21500_PCL2_WY_PBE01EXTRA28 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_CNV_21500_PCL2_WY_PBE01EXTRA28 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_CNV_21500_PCL2_WY_PBE01EXTRA28 INTO WA_CNV_21500_PCL2_WY_PBE01EXTRA28.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CNV_21500_PCL2_WY_PBE01EXTRA28_STR, 
WERKS TYPE STRING,
BTRTL TYPE STRING,
CUSTOM1 TYPE STRING,
CUSTOM2 TYPE STRING,
CUSTOM3 TYPE STRING,
CUSTOM4 TYPE STRING,
CUSTOM5 TYPE STRING,
DEPENSTXT1 TYPE STRING,
DEPENSTXT2 TYPE STRING,
DEPENSTXT3 TYPE STRING,
DEPENSTXT4 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_21500_PCL2_WY_PBE01EXTRA28_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_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-WERKS sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-BTRTL sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-CUSTOM1 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-CUSTOM2 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-CUSTOM3 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-CUSTOM4 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-CUSTOM5 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-DEPENSTXT1 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-DEPENSTXT2 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-DEPENSTXT3 sy-vline 
WA_CNV_21500_PCL2_WY_PBE01EXTRA28_STR-DEPENSTXT4 sy-vline      INTO ld_text SEPARATED BY SPACE.

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