ABAP Select data from SAP table PAMS_S_KFZAUST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAMS_S_KFZAUST
*  INTO TABLE @DATA(IT_PAMS_S_KFZAUST2).
*--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_PAMS_S_KFZAUST INDEX 1 INTO DATA(WA_PAMS_S_KFZAUST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAMS_S_KFZAUST>-MERK01T = 1.
<PAMS_S_KFZAUST>-MERK02T = 1.
<PAMS_S_KFZAUST>-MERK03T = 1.
<PAMS_S_KFZAUST>-MERK04T = 1.
<PAMS_S_KFZAUST>-MERK05T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAMS_S_KFZAUST-MERK06T, sy-vline,
  WA_PAMS_S_KFZAUST-MERK07T, sy-vline,
  WA_PAMS_S_KFZAUST-MERK08T, sy-vline,
  WA_PAMS_S_KFZAUST-MERK09T, sy-vline,
  WA_PAMS_S_KFZAUST-MERK10T, sy-vline,
  WA_PAMS_S_KFZAUST-MERK11T, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAMS_S_KFZAUST 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_PAMS_S_KFZAUST 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_PAMS_S_KFZAUST INTO WA_PAMS_S_KFZAUST.


*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_PAMS_S_KFZAUST_STR, 
MERK01T TYPE STRING,
MERK02T TYPE STRING,
MERK03T TYPE STRING,
MERK04T TYPE STRING,
MERK05T TYPE STRING,
MERK06T TYPE STRING,
MERK07T TYPE STRING,
MERK08T TYPE STRING,
MERK09T TYPE STRING,
MERK10T TYPE STRING,
MERK11T TYPE STRING,
MERK12T TYPE STRING,
VHCATT TYPE STRING,
ANZPERT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAMS_S_KFZAUST_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_PAMS_S_KFZAUST_STR-MERK01T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK02T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK03T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK04T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK05T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK06T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK07T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK08T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK09T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK10T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK11T sy-vline 
WA_PAMS_S_KFZAUST_STR-MERK12T sy-vline 
WA_PAMS_S_KFZAUST_STR-VHCATT sy-vline 
WA_PAMS_S_KFZAUST_STR-ANZPERT sy-vline      INTO ld_text SEPARATED BY SPACE.

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