ABAP Select data from SAP table TF162 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TF162 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 TF162. 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 TF162 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_TF162 TYPE STANDARD TABLE OF TF162,
      WA_TF162 TYPE TF162,
      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: <TF162> TYPE TF162.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TF162.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TF162
  INTO TABLE IT_TF162.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TF162
*  INTO TABLE @DATA(IT_TF1622).
*--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_TF162 INDEX 1 INTO DATA(WA_TF1622).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TF162 ASSIGNING <TF162>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TF162>-MANDT = 1.
<TF162>-DIMEN = 1.
<TF162>-BUNIT = 1.
<TF162>-NAME1 = 1.
<TF162>-NAME2 = 1.

ENDLOOP.

LOOP AT IT_TF162 INTO WA_TF162.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TF162-STRET, sy-vline,
  WA_TF162-POBOX, sy-vline,
  WA_TF162-CITY, sy-vline,
  WA_TF162-ZIPC1, sy-vline,
  WA_TF162-ZIPC2, sy-vline,
  WA_TF162-TELFN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TF162 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_TF162 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_TF162 INTO WA_TF162.


*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.

*Conversion exit AFIMC, internal->external for field BUNIT
CALL FUNCTION 'CONVERSION_EXIT_AFIMC_OUTPUT'
  EXPORTING
    input =                      WA_TF162-BUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TF162-BUNIT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TF162_STR, 
MANDT TYPE STRING,
DIMEN TYPE STRING,
BUNIT TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STRET TYPE STRING,
POBOX TYPE STRING,
CITY TYPE STRING,
ZIPC1 TYPE STRING,
ZIPC2 TYPE STRING,
TELFN TYPE STRING,
TEFAX TYPE STRING,
TELEX TYPE STRING,
CNTRY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TF162_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_TF162_STR-MANDT sy-vline 
WA_TF162_STR-DIMEN sy-vline 
WA_TF162_STR-BUNIT sy-vline 
WA_TF162_STR-NAME1 sy-vline 
WA_TF162_STR-NAME2 sy-vline 
WA_TF162_STR-STRET sy-vline 
WA_TF162_STR-POBOX sy-vline 
WA_TF162_STR-CITY sy-vline 
WA_TF162_STR-ZIPC1 sy-vline 
WA_TF162_STR-ZIPC2 sy-vline 
WA_TF162_STR-TELFN sy-vline 
WA_TF162_STR-TEFAX sy-vline 
WA_TF162_STR-TELEX sy-vline 
WA_TF162_STR-CNTRY sy-vline      INTO ld_text SEPARATED BY SPACE.

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