ABAP Select data from SAP table P11_P45_R 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_R 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_R. 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_R 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_R TYPE STANDARD TABLE OF P11_P45_R,
      WA_P11_P45_R TYPE P11_P45_R,
      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_R> TYPE P11_P45_R.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P11_P45_R.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P11_P45_R
  INTO TABLE IT_P11_P45_R.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P11_P45_R
*  INTO TABLE @DATA(IT_P11_P45_R2).
*--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_R INDEX 1 INTO DATA(WA_P11_P45_R2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P11_P45_R ASSIGNING <P11_P45_R>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P11_P45_R>-PYTO1 = 1.
<P11_P45_R>-PYTO2 = 1.
<P11_P45_R>-TXTO1 = 1.
<P11_P45_R>-TXTO2 = 1.
<P11_P45_R>-PRTFA = 1.

ENDLOOP.

LOOP AT IT_P11_P45_R INTO WA_P11_P45_R.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P11_P45_R-CUTOF, sy-vline,
  WA_P11_P45_R-PREMP, sy-vline,
  WA_P11_P45_R-ERPRS, sy-vline,
  WA_P11_P45_R-PRTOT, sy-vline,
  WA_P11_P45_R-TXBNF, sy-vline,
  WA_P11_P45_R-TFAFQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P11_P45_R 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_R 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_R INTO WA_P11_P45_R.


*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_P11_P45_R_STR, 
PYTO1 TYPE STRING,
PYTO2 TYPE STRING,
TXTO1 TYPE STRING,
TXTO2 TYPE STRING,
PRTFA TYPE STRING,
CUTOF TYPE STRING,
PREMP TYPE STRING,
ERPRS TYPE STRING,
PRTOT TYPE STRING,
TXBNF TYPE STRING,
TFAFQ TYPE STRING,
PERNO TYPE STRING,
LUMP TYPE STRING,
WTFAS TYPE STRING,
MTFAS TYPE STRING,
WUTOF TYPE STRING,
MUTOF TYPE STRING,
TXTBL TYPE STRING,
REFUN TYPE STRING,
DISW1 TYPE STRING,
DISW2 TYPE STRING,
DISW3 TYPE STRING,
DISW4 TYPE STRING,
SEQNO TYPE STRING,
PAYDT TYPE STRING,
LPT TYPE STRING,
PRSIE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P11_P45_R_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_R_STR-PYTO1 sy-vline 
WA_P11_P45_R_STR-PYTO2 sy-vline 
WA_P11_P45_R_STR-TXTO1 sy-vline 
WA_P11_P45_R_STR-TXTO2 sy-vline 
WA_P11_P45_R_STR-PRTFA sy-vline 
WA_P11_P45_R_STR-CUTOF sy-vline 
WA_P11_P45_R_STR-PREMP sy-vline 
WA_P11_P45_R_STR-ERPRS sy-vline 
WA_P11_P45_R_STR-PRTOT sy-vline 
WA_P11_P45_R_STR-TXBNF sy-vline 
WA_P11_P45_R_STR-TFAFQ sy-vline 
WA_P11_P45_R_STR-PERNO sy-vline 
WA_P11_P45_R_STR-LUMP sy-vline 
WA_P11_P45_R_STR-WTFAS sy-vline 
WA_P11_P45_R_STR-MTFAS sy-vline 
WA_P11_P45_R_STR-WUTOF sy-vline 
WA_P11_P45_R_STR-MUTOF sy-vline 
WA_P11_P45_R_STR-TXTBL sy-vline 
WA_P11_P45_R_STR-REFUN sy-vline 
WA_P11_P45_R_STR-DISW1 sy-vline 
WA_P11_P45_R_STR-DISW2 sy-vline 
WA_P11_P45_R_STR-DISW3 sy-vline 
WA_P11_P45_R_STR-DISW4 sy-vline 
WA_P11_P45_R_STR-SEQNO sy-vline 
WA_P11_P45_R_STR-PAYDT sy-vline 
WA_P11_P45_R_STR-LPT sy-vline 
WA_P11_P45_R_STR-PRSIE sy-vline      INTO ld_text SEPARATED BY SPACE.

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