ABAP Select data from SAP table P05T_KENT_OVW_ALV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P05T_KENT_OVW_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 P05T_KENT_OVW_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 P05T_KENT_OVW_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_P05T_KENT_OVW_ALV TYPE STANDARD TABLE OF P05T_KENT_OVW_ALV,
      WA_P05T_KENT_OVW_ALV TYPE P05T_KENT_OVW_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: <P05T_KENT_OVW_ALV> TYPE P05T_KENT_OVW_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P05T_KENT_OVW_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P05T_KENT_OVW_ALV
  INTO TABLE IT_P05T_KENT_OVW_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P05T_KENT_OVW_ALV
*  INTO TABLE @DATA(IT_P05T_KENT_OVW_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_P05T_KENT_OVW_ALV INDEX 1 INTO DATA(WA_P05T_KENT_OVW_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P05T_KENT_OVW_ALV ASSIGNING <P05T_KENT_OVW_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P05T_KENT_OVW_ALV>-APPL = 1.
<P05T_KENT_OVW_ALV>-APPLTX = 1.
<P05T_KENT_OVW_ALV>-KENT = 1.
<P05T_KENT_OVW_ALV>-KENTXT = 1.
<P05T_KENT_OVW_ALV>-SUMLG = 1.

ENDLOOP.

LOOP AT IT_P05T_KENT_OVW_ALV INTO WA_P05T_KENT_OVW_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P05T_KENT_OVW_ALV-SUMTX, sy-vline,
  WA_P05T_KENT_OVW_ALV-SIGN, sy-vline,
  WA_P05T_KENT_OVW_ALV-LGART, sy-vline,
  WA_P05T_KENT_OVW_ALV-LGTXT, sy-vline,
  WA_P05T_KENT_OVW_ALV-RECHZ, sy-vline,
  WA_P05T_KENT_OVW_ALV-BEGDA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P05T_KENT_OVW_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_P05T_KENT_OVW_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_P05T_KENT_OVW_ALV INTO WA_P05T_KENT_OVW_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.
ENDFORM. 

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

TYPES: BEGIN OF T_P05T_KENT_OVW_ALV_STR, 
APPL TYPE STRING,
APPLTX TYPE STRING,
KENT TYPE STRING,
KENTXT TYPE STRING,
SUMLG TYPE STRING,
SUMTX TYPE STRING,
SIGN TYPE STRING,
LGART TYPE STRING,
LGTXT TYPE STRING,
RECHZ TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
IRSTP TYPE STRING,
IRSTPT TYPE STRING,
SPLIT TYPE STRING,
SPLITT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P05T_KENT_OVW_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_P05T_KENT_OVW_ALV_STR-APPL sy-vline 
WA_P05T_KENT_OVW_ALV_STR-APPLTX sy-vline 
WA_P05T_KENT_OVW_ALV_STR-KENT sy-vline 
WA_P05T_KENT_OVW_ALV_STR-KENTXT sy-vline 
WA_P05T_KENT_OVW_ALV_STR-SUMLG sy-vline 
WA_P05T_KENT_OVW_ALV_STR-SUMTX sy-vline 
WA_P05T_KENT_OVW_ALV_STR-SIGN sy-vline 
WA_P05T_KENT_OVW_ALV_STR-LGART sy-vline 
WA_P05T_KENT_OVW_ALV_STR-LGTXT sy-vline 
WA_P05T_KENT_OVW_ALV_STR-RECHZ sy-vline 
WA_P05T_KENT_OVW_ALV_STR-BEGDA sy-vline 
WA_P05T_KENT_OVW_ALV_STR-ENDDA sy-vline 
WA_P05T_KENT_OVW_ALV_STR-IRSTP sy-vline 
WA_P05T_KENT_OVW_ALV_STR-IRSTPT sy-vline 
WA_P05T_KENT_OVW_ALV_STR-SPLIT sy-vline 
WA_P05T_KENT_OVW_ALV_STR-SPLITT sy-vline      INTO ld_text SEPARATED BY SPACE.

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