ABAP Select data from SAP table PATTPLOGPTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PATTPLOGPTR
*  INTO TABLE @DATA(IT_PATTPLOGPTR2).
*--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_PATTPLOGPTR INDEX 1 INTO DATA(WA_PATTPLOGPTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PATTPLOGPTR>-PATCH = 1.
<PATTPLOGPTR>-AS4POS = 1.
<PATTPLOGPTR>-TRKORR = 1.
<PATTPLOGPTR>-OWNER = 1.
<PATTPLOGPTR>-SYSNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PATTPLOGPTR-STEP, sy-vline,
  WA_PATTPLOGPTR-RETCODE, sy-vline,
  WA_PATTPLOGPTR-LOGDATE, sy-vline,
  WA_PATTPLOGPTR-LOGTIME, sy-vline,
  WA_PATTPLOGPTR-OSUSER, sy-vline,
  WA_PATTPLOGPTR-HOSTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PATTPLOGPTR 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_PATTPLOGPTR 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_PATTPLOGPTR INTO WA_PATTPLOGPTR.


*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_PATTPLOGPTR_STR, 
PATCH TYPE STRING,
AS4POS TYPE STRING,
TRKORR TYPE STRING,
OWNER TYPE STRING,
SYSNAME TYPE STRING,
STEP TYPE STRING,
RETCODE TYPE STRING,
LOGDATE TYPE STRING,
LOGTIME TYPE STRING,
OSUSER TYPE STRING,
HOSTNAME TYPE STRING,
CLIENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PATTPLOGPTR_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_PATTPLOGPTR_STR-PATCH sy-vline 
WA_PATTPLOGPTR_STR-AS4POS sy-vline 
WA_PATTPLOGPTR_STR-TRKORR sy-vline 
WA_PATTPLOGPTR_STR-OWNER sy-vline 
WA_PATTPLOGPTR_STR-SYSNAME sy-vline 
WA_PATTPLOGPTR_STR-STEP sy-vline 
WA_PATTPLOGPTR_STR-RETCODE sy-vline 
WA_PATTPLOGPTR_STR-LOGDATE sy-vline 
WA_PATTPLOGPTR_STR-LOGTIME sy-vline 
WA_PATTPLOGPTR_STR-OSUSER sy-vline 
WA_PATTPLOGPTR_STR-HOSTNAME sy-vline 
WA_PATTPLOGPTR_STR-CLIENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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