ABAP Select data from SAP table PTBUF_V3S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTBUF_V3S 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 PTBUF_V3S. 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 PTBUF_V3S 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_PTBUF_V3S TYPE STANDARD TABLE OF PTBUF_V3S,
      WA_PTBUF_V3S TYPE PTBUF_V3S,
      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: <PTBUF_V3S> TYPE PTBUF_V3S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTBUF_V3S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTBUF_V3S
  INTO TABLE IT_PTBUF_V3S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTBUF_V3S
*  INTO TABLE @DATA(IT_PTBUF_V3S2).
*--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_PTBUF_V3S INDEX 1 INTO DATA(WA_PTBUF_V3S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTBUF_V3S ASSIGNING <PTBUF_V3S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTBUF_V3S>-SEQNO = 1.
<PTBUF_V3S>-VATYP = 1.
<PTBUF_V3S>-VAWDY = 1.
<PTBUF_V3S>-VAHDD = 1.
<PTBUF_V3S>-VAHDB = 1.

ENDLOOP.

LOOP AT IT_PTBUF_V3S INTO WA_PTBUF_V3S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTBUF_V3S-VAHDA, sy-vline,
  WA_PTBUF_V3S-VATMC, sy-vline,
  WA_PTBUF_V3S-VADPC, sy-vline,
  WA_PTBUF_V3S-VATTY, sy-vline,
  WA_PTBUF_V3S-BEGTM, sy-vline,
  WA_PTBUF_V3S-ENDTM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTBUF_V3S 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_PTBUF_V3S 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_PTBUF_V3S INTO WA_PTBUF_V3S.


*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_PTBUF_V3S_STR, 
SEQNO TYPE STRING,
VATYP TYPE STRING,
VAWDY TYPE STRING,
VAHDD TYPE STRING,
VAHDB TYPE STRING,
VAHDA TYPE STRING,
VATMC TYPE STRING,
VADPC TYPE STRING,
VATTY TYPE STRING,
BEGTM TYPE STRING,
ENDTM TYPE STRING,
HRSLO TYPE STRING,
HRSLS TYPE STRING,
HRSHI TYPE STRING,
HRSHS TYPE STRING,
COTYP TYPE STRING,
COINT TYPE STRING,
EXITA TYPE STRING,
EXITR TYPE STRING,
LGMUL TYPE STRING,
LGART TYPE STRING,
INUMB TYPE STRING,
EXRUL TYPE STRING,
EXGWT TYPE STRING,
NOSPL TYPE STRING,
HRSMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTBUF_V3S_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_PTBUF_V3S_STR-SEQNO sy-vline 
WA_PTBUF_V3S_STR-VATYP sy-vline 
WA_PTBUF_V3S_STR-VAWDY sy-vline 
WA_PTBUF_V3S_STR-VAHDD sy-vline 
WA_PTBUF_V3S_STR-VAHDB sy-vline 
WA_PTBUF_V3S_STR-VAHDA sy-vline 
WA_PTBUF_V3S_STR-VATMC sy-vline 
WA_PTBUF_V3S_STR-VADPC sy-vline 
WA_PTBUF_V3S_STR-VATTY sy-vline 
WA_PTBUF_V3S_STR-BEGTM sy-vline 
WA_PTBUF_V3S_STR-ENDTM sy-vline 
WA_PTBUF_V3S_STR-HRSLO sy-vline 
WA_PTBUF_V3S_STR-HRSLS sy-vline 
WA_PTBUF_V3S_STR-HRSHI sy-vline 
WA_PTBUF_V3S_STR-HRSHS sy-vline 
WA_PTBUF_V3S_STR-COTYP sy-vline 
WA_PTBUF_V3S_STR-COINT sy-vline 
WA_PTBUF_V3S_STR-EXITA sy-vline 
WA_PTBUF_V3S_STR-EXITR sy-vline 
WA_PTBUF_V3S_STR-LGMUL sy-vline 
WA_PTBUF_V3S_STR-LGART sy-vline 
WA_PTBUF_V3S_STR-INUMB sy-vline 
WA_PTBUF_V3S_STR-EXRUL sy-vline 
WA_PTBUF_V3S_STR-EXGWT sy-vline 
WA_PTBUF_V3S_STR-NOSPL sy-vline 
WA_PTBUF_V3S_STR-HRSMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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