ABAP Select data from SAP table P01_KGID_EING into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01_KGID_EING 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 P01_KGID_EING. 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 P01_KGID_EING 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_P01_KGID_EING TYPE STANDARD TABLE OF P01_KGID_EING,
      WA_P01_KGID_EING TYPE P01_KGID_EING,
      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: <P01_KGID_EING> TYPE P01_KGID_EING.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01_KGID_EING.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01_KGID_EING
  INTO TABLE IT_P01_KGID_EING.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01_KGID_EING
*  INTO TABLE @DATA(IT_P01_KGID_EING2).
*--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_P01_KGID_EING INDEX 1 INTO DATA(WA_P01_KGID_EING2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01_KGID_EING ASSIGNING <P01_KGID_EING>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01_KGID_EING>-MANDT = 1.
<P01_KGID_EING>-INGUID = 1.
<P01_KGID_EING>-ANTWNR = 1.
<P01_KGID_EING>-STATUS = 1.
<P01_KGID_EING>-FAMKAS = 1.

ENDLOOP.

LOOP AT IT_P01_KGID_EING INTO WA_P01_KGID_EING.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01_KGID_EING-FACHVS, sy-vline,
  WA_P01_KGID_EING-SIDKIND, sy-vline,
  WA_P01_KGID_EING-GEBKIND, sy-vline,
  WA_P01_KGID_EING-SIDBER, sy-vline,
  WA_P01_KGID_EING-GEBBER, sy-vline,
  WA_P01_KGID_EING-MELDART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01_KGID_EING 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_P01_KGID_EING 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_P01_KGID_EING INTO WA_P01_KGID_EING.


*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 PDATE, internal->external for field GEBKIND
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P01_KGID_EING-GEBKIND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P01_KGID_EING-GEBKIND.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PDATE, internal->external for field GEBBER
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P01_KGID_EING-GEBBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P01_KGID_EING-GEBBER.
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_P01_KGID_EING_STR, 
MANDT TYPE STRING,
INGUID TYPE STRING,
ANTWNR TYPE STRING,
STATUS TYPE STRING,
FAMKAS TYPE STRING,
FACHVS TYPE STRING,
SIDKIND TYPE STRING,
GEBKIND TYPE STRING,
SIDBER TYPE STRING,
GEBBER TYPE STRING,
MELDART TYPE STRING,
ZUZA TYPE STRING,
AKTAB TYPE STRING,
ABARBEITUNGSREIHENFOLGE TYPE STRING,
VONDA TYPE STRING,
BISDA TYPE STRING,
ANTWART TYPE STRING,
NACHNR TYPE STRING,
NACHTXT TYPE STRING,
STDAT TYPE STRING,
STSID TYPE STRING,
FKSTILL TYPE STRING,
FKSTBEG TYPE STRING,
FKSPERR TYPE STRING,
FKSPBEG TYPE STRING,
FKSPEND TYPE STRING,
UFAMKAS TYPE STRING,
UFKNAME TYPE STRING,
UFKMAIL TYPE STRING,
UFKTEL TYPE STRING,
UFKFAX TYPE STRING,
UFKSTR TYPE STRING,
UFKHNR TYPE STRING,
UFKHNRZ TYPE STRING,
UFKPLZ TYPE STRING,
UFKORT TYPE STRING,
UFKPFACH TYPE STRING,
UFACHVS TYPE STRING,
UVONDA TYPE STRING,
UBISDA TYPE STRING,
DATUM TYPE STRING,
UZEIT TYPE STRING,
REPORT TYPE STRING,
EUSER TYPE STRING,
DATEIID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01_KGID_EING_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_P01_KGID_EING_STR-MANDT sy-vline 
WA_P01_KGID_EING_STR-INGUID sy-vline 
WA_P01_KGID_EING_STR-ANTWNR sy-vline 
WA_P01_KGID_EING_STR-STATUS sy-vline 
WA_P01_KGID_EING_STR-FAMKAS sy-vline 
WA_P01_KGID_EING_STR-FACHVS sy-vline 
WA_P01_KGID_EING_STR-SIDKIND sy-vline 
WA_P01_KGID_EING_STR-GEBKIND sy-vline 
WA_P01_KGID_EING_STR-SIDBER sy-vline 
WA_P01_KGID_EING_STR-GEBBER sy-vline 
WA_P01_KGID_EING_STR-MELDART sy-vline 
WA_P01_KGID_EING_STR-ZUZA sy-vline 
WA_P01_KGID_EING_STR-AKTAB sy-vline 
WA_P01_KGID_EING_STR-ABARBEITUNGSREIHENFOLGE sy-vline 
WA_P01_KGID_EING_STR-VONDA sy-vline 
WA_P01_KGID_EING_STR-BISDA sy-vline 
WA_P01_KGID_EING_STR-ANTWART sy-vline 
WA_P01_KGID_EING_STR-NACHNR sy-vline 
WA_P01_KGID_EING_STR-NACHTXT sy-vline 
WA_P01_KGID_EING_STR-STDAT sy-vline 
WA_P01_KGID_EING_STR-STSID sy-vline 
WA_P01_KGID_EING_STR-FKSTILL sy-vline 
WA_P01_KGID_EING_STR-FKSTBEG sy-vline 
WA_P01_KGID_EING_STR-FKSPERR sy-vline 
WA_P01_KGID_EING_STR-FKSPBEG sy-vline 
WA_P01_KGID_EING_STR-FKSPEND sy-vline 
WA_P01_KGID_EING_STR-UFAMKAS sy-vline 
WA_P01_KGID_EING_STR-UFKNAME sy-vline 
WA_P01_KGID_EING_STR-UFKMAIL sy-vline 
WA_P01_KGID_EING_STR-UFKTEL sy-vline 
WA_P01_KGID_EING_STR-UFKFAX sy-vline 
WA_P01_KGID_EING_STR-UFKSTR sy-vline 
WA_P01_KGID_EING_STR-UFKHNR sy-vline 
WA_P01_KGID_EING_STR-UFKHNRZ sy-vline 
WA_P01_KGID_EING_STR-UFKPLZ sy-vline 
WA_P01_KGID_EING_STR-UFKORT sy-vline 
WA_P01_KGID_EING_STR-UFKPFACH sy-vline 
WA_P01_KGID_EING_STR-UFACHVS sy-vline 
WA_P01_KGID_EING_STR-UVONDA sy-vline 
WA_P01_KGID_EING_STR-UBISDA sy-vline 
WA_P01_KGID_EING_STR-DATUM sy-vline 
WA_P01_KGID_EING_STR-UZEIT sy-vline 
WA_P01_KGID_EING_STR-REPORT sy-vline 
WA_P01_KGID_EING_STR-EUSER sy-vline 
WA_P01_KGID_EING_STR-DATEIID sy-vline      INTO ld_text SEPARATED BY SPACE.

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