ABAP Select data from SAP table /LTB/TR_S_PIFD_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /LTB/TR_S_PIFD_DATA 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 /LTB/TR_S_PIFD_DATA. 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 /LTB/TR_S_PIFD_DATA 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_/LTB/TR_S_PIFD_DATA TYPE STANDARD TABLE OF /LTB/TR_S_PIFD_DATA,
      WA_/LTB/TR_S_PIFD_DATA TYPE /LTB/TR_S_PIFD_DATA,
      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: </LTB/TR_S_PIFD_DATA> TYPE /LTB/TR_S_PIFD_DATA.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /LTB/TR_S_PIFD_DATA
  INTO TABLE IT_/LTB/TR_S_PIFD_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /LTB/TR_S_PIFD_DATA
*  INTO TABLE @DATA(IT_/LTB/TR_S_PIFD_DATA2).
*--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_/LTB/TR_S_PIFD_DATA INDEX 1 INTO DATA(WA_/LTB/TR_S_PIFD_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/LTB/TR_S_PIFD_DATA ASSIGNING </LTB/TR_S_PIFD_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</LTB/TR_S_PIFD_DATA>-ID = 1.
</LTB/TR_S_PIFD_DATA>-SIGNATURE = 1.
</LTB/TR_S_PIFD_DATA>-TR_ID = 1.
</LTB/TR_S_PIFD_DATA>-MODIFIED = 1.
</LTB/TR_S_PIFD_DATA>-IS_LOCKED = 1.

ENDLOOP.

LOOP AT IT_/LTB/TR_S_PIFD_DATA INTO WA_/LTB/TR_S_PIFD_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/LTB/TR_S_PIFD_DATA-SIGNATURE_ELEMENTS, sy-vline,
  WA_/LTB/TR_S_PIFD_DATA-VRNT, sy-vline,
  WA_/LTB/TR_S_PIFD_DATA-TR_ID, sy-vline,
  WA_/LTB/TR_S_PIFD_DATA-MODIFIED, sy-vline,
  WA_/LTB/TR_S_PIFD_DATA-IS_LOCKED, sy-vline,
  WA_/LTB/TR_S_PIFD_DATA-ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/LTB/TR_S_PIFD_DATA 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_/LTB/TR_S_PIFD_DATA 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_/LTB/TR_S_PIFD_DATA INTO WA_/LTB/TR_S_PIFD_DATA.


*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 DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_/LTB/TR_S_PIFD_DATA-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LTB/TR_S_PIFD_DATA-DATATYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_/LTB/TR_S_PIFD_DATA-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LTB/TR_S_PIFD_DATA-DATATYPE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit DTYPE, internal->external for field DATATYPE
CALL FUNCTION 'CONVERSION_EXIT_DTYPE_OUTPUT'
  EXPORTING
    input =                      WA_/LTB/TR_S_PIFD_DATA-DATATYPE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/LTB/TR_S_PIFD_DATA-DATATYPE.
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_/LTB/TR_S_PIFD_DATA_STR, 
ID TYPE STRING,
SIGNATURE TYPE STRING,
TR_ID TYPE STRING,
MODIFIED TYPE STRING,
IS_LOCKED TYPE STRING,
SIGNATURE_ELEMENTS TYPE STRING,
VRNT TYPE STRING,
TR_ID TYPE STRING,
MODIFIED TYPE STRING,
IS_LOCKED TYPE STRING,
ID TYPE STRING,
TYPE TYPE STRING,
RANGE_DATA TYPE STRING,
PIFD_ID TYPE STRING,
REFERENCED_DTEL TYPE STRING,
RFCDEST TYPE STRING,
DATA TYPE STRING,
FCAT TYPE STRING,
ALV_STRING_TAB TYPE STRING,
DATATYPE TYPE STRING,
LENG TYPE STRING,
DECIMALS TYPE STRING,
LOWERCASE TYPE STRING,
OTH_CLNT_DATA TYPE STRING,
VALMAP_DATA TYPE STRING,
ME_ID TYPE STRING,
REFERENCED_DTEL TYPE STRING,
RFCDEST TYPE STRING,
DATA TYPE STRING,
FCAT TYPE STRING,
DATATYPE TYPE STRING,
LENG TYPE STRING,
DECIMALS TYPE STRING,
LOWERCASE TYPE STRING,
OTH_CLNT_DATA TYPE STRING,
FIXEDVALUE_DATA TYPE STRING,
PIFD_ID TYPE STRING,
REFERENCED_DTEL TYPE STRING,
RFCDEST TYPE STRING,
DATA TYPE STRING,
CONFIRMED TYPE STRING,
USE_DEFAULT TYPE STRING,
FCAT TYPE STRING,
ALV_STRING_TAB TYPE STRING,
DATATYPE TYPE STRING,
LENG TYPE STRING,
DECIMALS TYPE STRING,
LOWERCASE TYPE STRING,
OTH_CLNT_DATA TYPE STRING,
DEFAULT_VALUE TYPE STRING,
CODE_DATA TYPE STRING,
LOGICAL_OPERATION_DATA TYPE STRING,
OPERATOR TYPE STRING,
CONDITIONS TYPE STRING,
CONDITION_SET_DATA TYPE STRING,
EXT_VALMAP_DATA TYPE STRING,
ME_ID TYPE STRING,
REFERENCED_DTEL TYPE STRING,
RFCDEST TYPE STRING,
DATA TYPE STRING,
FCAT TYPE STRING,
DB_TABLE TYPE STRING,
USE_DB TYPE STRING,
OTH_CLNT_DATA TYPE STRING,
DC_DB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/LTB/TR_S_PIFD_DATA_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_/LTB/TR_S_PIFD_DATA_STR-ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-SIGNATURE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-TR_ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-MODIFIED sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-IS_LOCKED sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-SIGNATURE_ELEMENTS sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-VRNT sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-TR_ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-MODIFIED sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-IS_LOCKED sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-TYPE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-RANGE_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-PIFD_ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-REFERENCED_DTEL sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-RFCDEST sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-FCAT sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-ALV_STRING_TAB sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATATYPE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LENG sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DECIMALS sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LOWERCASE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-OTH_CLNT_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-VALMAP_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-ME_ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-REFERENCED_DTEL sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-RFCDEST sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-FCAT sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATATYPE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LENG sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DECIMALS sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LOWERCASE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-OTH_CLNT_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-FIXEDVALUE_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-PIFD_ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-REFERENCED_DTEL sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-RFCDEST sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-CONFIRMED sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-USE_DEFAULT sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-FCAT sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-ALV_STRING_TAB sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATATYPE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LENG sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DECIMALS sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LOWERCASE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-OTH_CLNT_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DEFAULT_VALUE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-CODE_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-LOGICAL_OPERATION_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-OPERATOR sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-CONDITIONS sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-CONDITION_SET_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-EXT_VALMAP_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-ME_ID sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-REFERENCED_DTEL sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-RFCDEST sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-FCAT sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DB_TABLE sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-USE_DB sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-OTH_CLNT_DATA sy-vline 
WA_/LTB/TR_S_PIFD_DATA_STR-DC_DB sy-vline      INTO ld_text SEPARATED BY SPACE.

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