ABAP Select data from SAP table TNFPSE into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TNFPSE
*  INTO TABLE @DATA(IT_TNFPSE2).
*--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_TNFPSE INDEX 1 INTO DATA(WA_TNFPSE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TNFPSE>-MANDT = 1.
<TNFPSE>-EINRI = 1.
<TNFPSE>-REGEL = 1.
<TNFPSE>-ICDTXT1 = 1.
<TNFPSE>-ICDTXT2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TNFPSE-ICDTXT3, sy-vline,
  WA_TNFPSE-ICPMTXT1, sy-vline,
  WA_TNFPSE-ICPMTXT2, sy-vline,
  WA_TNFPSE-ICPMTXT3, sy-vline,
  WA_TNFPSE-ICDMORE, sy-vline,
  WA_TNFPSE-LEIST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TNFPSE 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_TNFPSE 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_TNFPSE INTO WA_TNFPSE.


*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 ALPHA, internal->external for field EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TNFPSE-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TNFPSE-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LEIST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TNFPSE-LEIST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TNFPSE-LEIST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TARIF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TNFPSE-TARIF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TNFPSE-TARIF.
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_TNFPSE_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
REGEL TYPE STRING,
ICDTXT1 TYPE STRING,
ICDTXT2 TYPE STRING,
ICDTXT3 TYPE STRING,
ICPMTXT1 TYPE STRING,
ICPMTXT2 TYPE STRING,
ICPMTXT3 TYPE STRING,
ICDMORE TYPE STRING,
LEIST TYPE STRING,
FP_SE TYPE STRING,
NO_AGE TYPE STRING,
TARIF TYPE STRING,
GLTVON TYPE STRING,
GLTBIS TYPE STRING,
NOAKT TYPE STRING,
IMENG TYPE STRING,
PERIOD_CHECK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TNFPSE_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_TNFPSE_STR-MANDT sy-vline 
WA_TNFPSE_STR-EINRI sy-vline 
WA_TNFPSE_STR-REGEL sy-vline 
WA_TNFPSE_STR-ICDTXT1 sy-vline 
WA_TNFPSE_STR-ICDTXT2 sy-vline 
WA_TNFPSE_STR-ICDTXT3 sy-vline 
WA_TNFPSE_STR-ICPMTXT1 sy-vline 
WA_TNFPSE_STR-ICPMTXT2 sy-vline 
WA_TNFPSE_STR-ICPMTXT3 sy-vline 
WA_TNFPSE_STR-ICDMORE sy-vline 
WA_TNFPSE_STR-LEIST sy-vline 
WA_TNFPSE_STR-FP_SE sy-vline 
WA_TNFPSE_STR-NO_AGE sy-vline 
WA_TNFPSE_STR-TARIF sy-vline 
WA_TNFPSE_STR-GLTVON sy-vline 
WA_TNFPSE_STR-GLTBIS sy-vline 
WA_TNFPSE_STR-NOAKT sy-vline 
WA_TNFPSE_STR-IMENG sy-vline 
WA_TNFPSE_STR-PERIOD_CHECK sy-vline      INTO ld_text SEPARATED BY SPACE.

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