ABAP Select data from SAP table P18_PS_S0730 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P18_PS_S0730 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 P18_PS_S0730. 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 P18_PS_S0730 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_P18_PS_S0730 TYPE STANDARD TABLE OF P18_PS_S0730,
      WA_P18_PS_S0730 TYPE P18_PS_S0730,
      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: <P18_PS_S0730> TYPE P18_PS_S0730.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P18_PS_S0730.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P18_PS_S0730
  INTO TABLE IT_P18_PS_S0730.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P18_PS_S0730
*  INTO TABLE @DATA(IT_P18_PS_S07302).
*--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_P18_PS_S0730 INDEX 1 INTO DATA(WA_P18_PS_S07302).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P18_PS_S0730 ASSIGNING <P18_PS_S0730>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P18_PS_S0730>-BEGDA = 1.
<P18_PS_S0730>-ENDDA = 1.
<P18_PS_S0730>-ROKY = 1.
<P18_PS_S0730>-DNY = 1.
<P18_PS_S0730>-CITAT = 1.

ENDLOOP.

LOOP AT IT_P18_PS_S0730 INTO WA_P18_PS_S0730.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P18_PS_S0730-JMENO, sy-vline,
  WA_P18_PS_S0730-TEXT1, sy-vline,
  WA_P18_PS_S0730-TEXT2, sy-vline,
  WA_P18_PS_S0730-KATEG, sy-vline,
  WA_P18_PS_S0730-BETRG, sy-vline,
  WA_P18_PS_S0730-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P18_PS_S0730 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_P18_PS_S0730 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_P18_PS_S0730 INTO WA_P18_PS_S0730.


*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_P18_PS_S0730_STR, 
BEGDA TYPE STRING,
ENDDA TYPE STRING,
ROKY TYPE STRING,
DNY TYPE STRING,
CITAT TYPE STRING,
JMENO TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
KATEG TYPE STRING,
BETRG TYPE STRING,
WAERS TYPE STRING,
DATUM TYPE STRING,
DOKLD TYPE STRING,
OVERU TYPE STRING,
SCSKU TYPE STRING,
MANUA TYPE STRING,
NEZAM TYPE STRING,
ZAPHO TYPE STRING,
ZFKSP TYPE STRING,
PVBP TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P18_PS_S0730_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_P18_PS_S0730_STR-BEGDA sy-vline 
WA_P18_PS_S0730_STR-ENDDA sy-vline 
WA_P18_PS_S0730_STR-ROKY sy-vline 
WA_P18_PS_S0730_STR-DNY sy-vline 
WA_P18_PS_S0730_STR-CITAT sy-vline 
WA_P18_PS_S0730_STR-JMENO sy-vline 
WA_P18_PS_S0730_STR-TEXT1 sy-vline 
WA_P18_PS_S0730_STR-TEXT2 sy-vline 
WA_P18_PS_S0730_STR-KATEG sy-vline 
WA_P18_PS_S0730_STR-BETRG sy-vline 
WA_P18_PS_S0730_STR-WAERS sy-vline 
WA_P18_PS_S0730_STR-DATUM sy-vline 
WA_P18_PS_S0730_STR-DOKLD sy-vline 
WA_P18_PS_S0730_STR-OVERU sy-vline 
WA_P18_PS_S0730_STR-SCSKU sy-vline 
WA_P18_PS_S0730_STR-MANUA sy-vline 
WA_P18_PS_S0730_STR-NEZAM sy-vline 
WA_P18_PS_S0730_STR-ZAPHO sy-vline 
WA_P18_PS_S0730_STR-ZFKSP sy-vline 
WA_P18_PS_S0730_STR-PVBP sy-vline 
WA_P18_PS_S0730_STR-FLAG1 sy-vline 
WA_P18_PS_S0730_STR-FLAG2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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