ABAP Select data from SAP table P01EL_DBKE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01EL_DBKE 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 P01EL_DBKE. 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 P01EL_DBKE 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_P01EL_DBKE TYPE STANDARD TABLE OF P01EL_DBKE,
      WA_P01EL_DBKE TYPE P01EL_DBKE,
      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: <P01EL_DBKE> TYPE P01EL_DBKE.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01EL_DBKE.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01EL_DBKE
  INTO TABLE IT_P01EL_DBKE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01EL_DBKE
*  INTO TABLE @DATA(IT_P01EL_DBKE2).
*--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_P01EL_DBKE INDEX 1 INTO DATA(WA_P01EL_DBKE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01EL_DBKE ASSIGNING <P01EL_DBKE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01EL_DBKE>-MANDT = 1.
<P01EL_DBKE>-GUID = 1.
<P01EL_DBKE>-AVEND = 1.
<P01EL_DBKE>-AVBFR = 1.
<P01EL_DBKE>-AVBFSCHR = 1.

ENDLOOP.

LOOP AT IT_P01EL_DBKE INTO WA_P01EL_DBKE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01EL_DBKE-AVBFURSP, sy-vline,
  WA_P01EL_DBKE-AVBFABSCHL, sy-vline,
  WA_P01EL_DBKE-AVBFABVL, sy-vline,
  WA_P01EL_DBKE-AVBFRL, sy-vline,
  WA_P01EL_DBKE-AVKUEAM, sy-vline,
  WA_P01EL_DBKE-AVUWFWZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01EL_DBKE 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_P01EL_DBKE 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_P01EL_DBKE INTO WA_P01EL_DBKE.


*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_P01EL_DBKE_STR, 
MANDT TYPE STRING,
GUID TYPE STRING,
AVEND TYPE STRING,
AVBFR TYPE STRING,
AVBFSCHR TYPE STRING,
AVBFURSP TYPE STRING,
AVBFABSCHL TYPE STRING,
AVBFABVL TYPE STRING,
AVBFRL TYPE STRING,
AVKUEAM TYPE STRING,
AVUWFWZ TYPE STRING,
AVUWFWZBEG TYPE STRING,
AVUWFWZEND TYPE STRING,
AVLETZTRL TYPE STRING,
AVKUEDU TYPE STRING,
AVKUESCH TYPE STRING,
AVKUEBETR TYPE STRING,
AVKUESCHUKL TYPE STRING,
AVKUEZUST TYPE STRING,
AVKUEAL TYPE STRING,
AVKUEALAM TYPE STRING,
AVAMDAT TYPE STRING,
VWIVER TYPE STRING,
AVKUEZVB TYPE STRING,
SAW TYPE STRING,
SAWPRNA TYPE STRING,
AGKUEAM TYPE STRING,
AGKUEZU TYPE STRING,
KF TYPE STRING,
KFZE TYPE STRING,
KFBZ TYPE STRING,
KA TYPE STRING,
KAU TYPE STRING,
KAUAUG TYPE STRING,
KABGG TYPE STRING,
OKGL TYPE STRING,
OKGLFG TYPE STRING,
AVENLZ TYPE STRING,
AVENLZG TYPE STRING,
BVEGEN TYPE STRING,
BVEGENB TYPE STRING,
AVENUAG TYPE STRING,
BVENUR TYPE STRING,
AVENVL TYPE STRING,
AVENVGB TYPE STRING,
AVENVG TYPE STRING,
ABFMONAT TYPE STRING,
ABFGEZ TYPE STRING,
SAWPRSC TYPE STRING,
KAUAUG_002 TYPE STRING,
AVENLZG_002 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01EL_DBKE_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_P01EL_DBKE_STR-MANDT sy-vline 
WA_P01EL_DBKE_STR-GUID sy-vline 
WA_P01EL_DBKE_STR-AVEND sy-vline 
WA_P01EL_DBKE_STR-AVBFR sy-vline 
WA_P01EL_DBKE_STR-AVBFSCHR sy-vline 
WA_P01EL_DBKE_STR-AVBFURSP sy-vline 
WA_P01EL_DBKE_STR-AVBFABSCHL sy-vline 
WA_P01EL_DBKE_STR-AVBFABVL sy-vline 
WA_P01EL_DBKE_STR-AVBFRL sy-vline 
WA_P01EL_DBKE_STR-AVKUEAM sy-vline 
WA_P01EL_DBKE_STR-AVUWFWZ sy-vline 
WA_P01EL_DBKE_STR-AVUWFWZBEG sy-vline 
WA_P01EL_DBKE_STR-AVUWFWZEND sy-vline 
WA_P01EL_DBKE_STR-AVLETZTRL sy-vline 
WA_P01EL_DBKE_STR-AVKUEDU sy-vline 
WA_P01EL_DBKE_STR-AVKUESCH sy-vline 
WA_P01EL_DBKE_STR-AVKUEBETR sy-vline 
WA_P01EL_DBKE_STR-AVKUESCHUKL sy-vline 
WA_P01EL_DBKE_STR-AVKUEZUST sy-vline 
WA_P01EL_DBKE_STR-AVKUEAL sy-vline 
WA_P01EL_DBKE_STR-AVKUEALAM sy-vline 
WA_P01EL_DBKE_STR-AVAMDAT sy-vline 
WA_P01EL_DBKE_STR-VWIVER sy-vline 
WA_P01EL_DBKE_STR-AVKUEZVB sy-vline 
WA_P01EL_DBKE_STR-SAW sy-vline 
WA_P01EL_DBKE_STR-SAWPRNA sy-vline 
WA_P01EL_DBKE_STR-AGKUEAM sy-vline 
WA_P01EL_DBKE_STR-AGKUEZU sy-vline 
WA_P01EL_DBKE_STR-KF sy-vline 
WA_P01EL_DBKE_STR-KFZE sy-vline 
WA_P01EL_DBKE_STR-KFBZ sy-vline 
WA_P01EL_DBKE_STR-KA sy-vline 
WA_P01EL_DBKE_STR-KAU sy-vline 
WA_P01EL_DBKE_STR-KAUAUG sy-vline 
WA_P01EL_DBKE_STR-KABGG sy-vline 
WA_P01EL_DBKE_STR-OKGL sy-vline 
WA_P01EL_DBKE_STR-OKGLFG sy-vline 
WA_P01EL_DBKE_STR-AVENLZ sy-vline 
WA_P01EL_DBKE_STR-AVENLZG sy-vline 
WA_P01EL_DBKE_STR-BVEGEN sy-vline 
WA_P01EL_DBKE_STR-BVEGENB sy-vline 
WA_P01EL_DBKE_STR-AVENUAG sy-vline 
WA_P01EL_DBKE_STR-BVENUR sy-vline 
WA_P01EL_DBKE_STR-AVENVL sy-vline 
WA_P01EL_DBKE_STR-AVENVGB sy-vline 
WA_P01EL_DBKE_STR-AVENVG sy-vline 
WA_P01EL_DBKE_STR-ABFMONAT sy-vline 
WA_P01EL_DBKE_STR-ABFGEZ sy-vline 
WA_P01EL_DBKE_STR-SAWPRSC sy-vline 
WA_P01EL_DBKE_STR-KAUAUG_002 sy-vline 
WA_P01EL_DBKE_STR-AVENLZG_002 sy-vline      INTO ld_text SEPARATED BY SPACE.

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