ABAP Select data from SAP table P01P_RPISTAD0_ALV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P01P_RPISTAD0_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 P01P_RPISTAD0_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 P01P_RPISTAD0_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_P01P_RPISTAD0_ALV TYPE STANDARD TABLE OF P01P_RPISTAD0_ALV,
      WA_P01P_RPISTAD0_ALV TYPE P01P_RPISTAD0_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: <P01P_RPISTAD0_ALV> TYPE P01P_RPISTAD0_ALV.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P01P_RPISTAD0_ALV.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P01P_RPISTAD0_ALV
  INTO TABLE IT_P01P_RPISTAD0_ALV.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P01P_RPISTAD0_ALV
*  INTO TABLE @DATA(IT_P01P_RPISTAD0_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_P01P_RPISTAD0_ALV INDEX 1 INTO DATA(WA_P01P_RPISTAD0_ALV2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P01P_RPISTAD0_ALV ASSIGNING <P01P_RPISTAD0_ALV>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P01P_RPISTAD0_ALV>-PERNR = 1.
<P01P_RPISTAD0_ALV>-STTAG_UEB = 1.
<P01P_RPISTAD0_ALV>-PERSG = 1.
<P01P_RPISTAD0_ALV>-PERSK = 1.
<P01P_RPISTAD0_ALV>-TRFAR = 1.

ENDLOOP.

LOOP AT IT_P01P_RPISTAD0_ALV INTO WA_P01P_RPISTAD0_ALV.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P01P_RPISTAD0_ALV-TRFGB, sy-vline,
  WA_P01P_RPISTAD0_ALV-TRFGR, sy-vline,
  WA_P01P_RPISTAD0_ALV-TRFST, sy-vline,
  WA_P01P_RPISTAD0_ALV-OTRGR, sy-vline,
  WA_P01P_RPISTAD0_ALV-FALGK, sy-vline,
  WA_P01P_RPISTAD0_ALV-FALGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P01P_RPISTAD0_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_P01P_RPISTAD0_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_P01P_RPISTAD0_ALV INTO WA_P01P_RPISTAD0_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_P01P_RPISTAD0_ALV_STR, 
PERNR TYPE STRING,
STTAG_UEB TYPE STRING,
PERSG TYPE STRING,
PERSK TYPE STRING,
TRFAR TYPE STRING,
TRFGB TYPE STRING,
TRFGR TYPE STRING,
TRFST TYPE STRING,
OTRGR TYPE STRING,
FALGK TYPE STRING,
FALGR TYPE STRING,
AUFST TYPE STRING,
OZBEE TYPE STRING,
OZKOZ TYPE STRING,
OZKON TYPE STRING,
STUFE TYPE STRING,
PERSG_NEU TYPE STRING,
PERSK_NEU TYPE STRING,
TRFAR_NEU TYPE STRING,
TRFGB_NEU TYPE STRING,
TRFGR_NEU TYPE STRING,
TRFST_NEU TYPE STRING,
OZBEE_BAT TYPE STRING,
OZKOZ_BAT TYPE STRING,
OZKON_BAT TYPE STRING,
STUFE_BAT TYPE STRING,
DSAZL TYPE STRING,
SACHN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P01P_RPISTAD0_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_P01P_RPISTAD0_ALV_STR-PERNR sy-vline 
WA_P01P_RPISTAD0_ALV_STR-STTAG_UEB sy-vline 
WA_P01P_RPISTAD0_ALV_STR-PERSG sy-vline 
WA_P01P_RPISTAD0_ALV_STR-PERSK sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFAR sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFGB sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFGR sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFST sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OTRGR sy-vline 
WA_P01P_RPISTAD0_ALV_STR-FALGK sy-vline 
WA_P01P_RPISTAD0_ALV_STR-FALGR sy-vline 
WA_P01P_RPISTAD0_ALV_STR-AUFST sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OZBEE sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OZKOZ sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OZKON sy-vline 
WA_P01P_RPISTAD0_ALV_STR-STUFE sy-vline 
WA_P01P_RPISTAD0_ALV_STR-PERSG_NEU sy-vline 
WA_P01P_RPISTAD0_ALV_STR-PERSK_NEU sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFAR_NEU sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFGB_NEU sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFGR_NEU sy-vline 
WA_P01P_RPISTAD0_ALV_STR-TRFST_NEU sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OZBEE_BAT sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OZKOZ_BAT sy-vline 
WA_P01P_RPISTAD0_ALV_STR-OZKON_BAT sy-vline 
WA_P01P_RPISTAD0_ALV_STR-STUFE_BAT sy-vline 
WA_P01P_RPISTAD0_ALV_STR-DSAZL sy-vline 
WA_P01P_RPISTAD0_ALV_STR-SACHN sy-vline      INTO ld_text SEPARATED BY SPACE.

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