ABAP Select data from SAP table P11_P45_LEVYC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P11_P45_LEVYC 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 P11_P45_LEVYC. 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 P11_P45_LEVYC 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_P11_P45_LEVYC TYPE STANDARD TABLE OF P11_P45_LEVYC,
      WA_P11_P45_LEVYC TYPE P11_P45_LEVYC,
      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: <P11_P45_LEVYC> TYPE P11_P45_LEVYC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P11_P45_LEVYC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P11_P45_LEVYC
  INTO TABLE IT_P11_P45_LEVYC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P11_P45_LEVYC
*  INTO TABLE @DATA(IT_P11_P45_LEVYC2).
*--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_P11_P45_LEVYC INDEX 1 INTO DATA(WA_P11_P45_LEVYC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P11_P45_LEVYC ASSIGNING <P11_P45_LEVYC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P11_P45_LEVYC>-PERNR = 1.
<P11_P45_LEVYC>-ER_NAME = 1.
<P11_P45_LEVYC>-ER_ADR1 = 1.
<P11_P45_LEVYC>-ER_ADR2 = 1.
<P11_P45_LEVYC>-ER_ADR3 = 1.

ENDLOOP.

LOOP AT IT_P11_P45_LEVYC INTO WA_P11_P45_LEVYC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P11_P45_LEVYC-ERNIE, sy-vline,
  WA_P11_P45_LEVYC-EUNIE, sy-vline,
  WA_P11_P45_LEVYC-RSINO, sy-vline,
  WA_P11_P45_LEVYC-CNAME, sy-vline,
  WA_P11_P45_LEVYC-CPHON, sy-vline,
  WA_P11_P45_LEVYC-ACTVE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P11_P45_LEVYC 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_P11_P45_LEVYC 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_P11_P45_LEVYC INTO WA_P11_P45_LEVYC.


*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 EEDOB
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_P11_P45_LEVYC-EEDOB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_P11_P45_LEVYC-EEDOB.
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_P11_P45_LEVYC_STR, 
PERNR TYPE STRING,
ER_NAME TYPE STRING,
ER_ADR1 TYPE STRING,
ER_ADR2 TYPE STRING,
ER_ADR3 TYPE STRING,
ERNIE TYPE STRING,
EUNIE TYPE STRING,
RSINO TYPE STRING,
CNAME TYPE STRING,
CPHON TYPE STRING,
ACTVE TYPE STRING,
ENAME TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
EEDOB TYPE STRING,
GESCH TYPE STRING,
ADDR1 TYPE STRING,
ADDR2 TYPE STRING,
ADDR3 TYPE STRING,
ADDR4 TYPE STRING,
PSTLZ TYPE STRING,
PHIRE TYPE STRING,
FIRE TYPE STRING,
LY_PY TYPE STRING,
LEVYP TYPE STRING,
CEMAIL TYPE STRING,
WAERS TYPE STRING,
F_LY_PY TYPE STRING,
F_LEVYP TYPE STRING,
S_LY_PY TYPE STRING,
S_LEVYP TYPE STRING,
FLEVY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P11_P45_LEVYC_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_P11_P45_LEVYC_STR-PERNR sy-vline 
WA_P11_P45_LEVYC_STR-ER_NAME sy-vline 
WA_P11_P45_LEVYC_STR-ER_ADR1 sy-vline 
WA_P11_P45_LEVYC_STR-ER_ADR2 sy-vline 
WA_P11_P45_LEVYC_STR-ER_ADR3 sy-vline 
WA_P11_P45_LEVYC_STR-ERNIE sy-vline 
WA_P11_P45_LEVYC_STR-EUNIE sy-vline 
WA_P11_P45_LEVYC_STR-RSINO sy-vline 
WA_P11_P45_LEVYC_STR-CNAME sy-vline 
WA_P11_P45_LEVYC_STR-CPHON sy-vline 
WA_P11_P45_LEVYC_STR-ACTVE sy-vline 
WA_P11_P45_LEVYC_STR-ENAME sy-vline 
WA_P11_P45_LEVYC_STR-NACHN sy-vline 
WA_P11_P45_LEVYC_STR-VORNA sy-vline 
WA_P11_P45_LEVYC_STR-EEDOB sy-vline 
WA_P11_P45_LEVYC_STR-GESCH sy-vline 
WA_P11_P45_LEVYC_STR-ADDR1 sy-vline 
WA_P11_P45_LEVYC_STR-ADDR2 sy-vline 
WA_P11_P45_LEVYC_STR-ADDR3 sy-vline 
WA_P11_P45_LEVYC_STR-ADDR4 sy-vline 
WA_P11_P45_LEVYC_STR-PSTLZ sy-vline 
WA_P11_P45_LEVYC_STR-PHIRE sy-vline 
WA_P11_P45_LEVYC_STR-FIRE sy-vline 
WA_P11_P45_LEVYC_STR-LY_PY sy-vline 
WA_P11_P45_LEVYC_STR-LEVYP sy-vline 
WA_P11_P45_LEVYC_STR-CEMAIL sy-vline 
WA_P11_P45_LEVYC_STR-WAERS sy-vline 
WA_P11_P45_LEVYC_STR-F_LY_PY sy-vline 
WA_P11_P45_LEVYC_STR-F_LEVYP sy-vline 
WA_P11_P45_LEVYC_STR-S_LY_PY sy-vline 
WA_P11_P45_LEVYC_STR-S_LEVYP sy-vline 
WA_P11_P45_LEVYC_STR-FLEVY sy-vline      INTO ld_text SEPARATED BY SPACE.

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