ABAP Select data from SAP table /PF1/IV_TTYP_FLD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /PF1/IV_TTYP_FLD 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 /PF1/IV_TTYP_FLD. 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 /PF1/IV_TTYP_FLD 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_/PF1/IV_TTYP_FLD TYPE STANDARD TABLE OF /PF1/IV_TTYP_FLD,
      WA_/PF1/IV_TTYP_FLD TYPE /PF1/IV_TTYP_FLD,
      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: </PF1/IV_TTYP_FLD> TYPE /PF1/IV_TTYP_FLD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/PF1/IV_TTYP_FLD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /PF1/IV_TTYP_FLD
  INTO TABLE IT_/PF1/IV_TTYP_FLD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PF1/IV_TTYP_FLD
*  INTO TABLE @DATA(IT_/PF1/IV_TTYP_FLD2).
*--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_/PF1/IV_TTYP_FLD INDEX 1 INTO DATA(WA_/PF1/IV_TTYP_FLD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/PF1/IV_TTYP_FLD ASSIGNING </PF1/IV_TTYP_FLD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PF1/IV_TTYP_FLD>-MANDT = 1.
</PF1/IV_TTYP_FLD>-CLEARING_AREA = 1.
</PF1/IV_TTYP_FLD>-TRANS_TYPE = 1.
</PF1/IV_TTYP_FLD>-FCT_TYPE = 1.
</PF1/IV_TTYP_FLD>-FIELD_GROUP = 1.

ENDLOOP.

LOOP AT IT_/PF1/IV_TTYP_FLD INTO WA_/PF1/IV_TTYP_FLD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PF1/IV_TTYP_FLD-OBJECT_CATEGORY, sy-vline,
  WA_/PF1/IV_TTYP_FLD-OBJECT_FIELDNAME, sy-vline,
  WA_/PF1/IV_TTYP_FLD-PI_KIND, sy-vline,
  WA_/PF1/IV_TTYP_FLD-FLG_IS_CREDIT, sy-vline,
  WA_/PF1/IV_TTYP_FLD-FLG_HOLDER, sy-vline,
  WA_/PF1/IV_TTYP_FLD-TTGR_EV, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PF1/IV_TTYP_FLD 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_/PF1/IV_TTYP_FLD 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_/PF1/IV_TTYP_FLD INTO WA_/PF1/IV_TTYP_FLD.


*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_/PF1/IV_TTYP_FLD_STR, 
MANDT TYPE STRING,
CLEARING_AREA TYPE STRING,
TRANS_TYPE TYPE STRING,
FCT_TYPE TYPE STRING,
FIELD_GROUP TYPE STRING,
OBJECT_CATEGORY TYPE STRING,
OBJECT_FIELDNAME TYPE STRING,
PI_KIND TYPE STRING,
FLG_IS_CREDIT TYPE STRING,
FLG_HOLDER TYPE STRING,
TTGR_EV TYPE STRING,
TTGR_RCP_SPLIT TYPE STRING,
AMT_LIMIT TYPE STRING,
AMT_LIMIT_CUR TYPE STRING,
VALID TYPE STRING,
FLG_NO_RETURN TYPE STRING,
FLG_MAN_MNT TYPE STRING,
FORM_TEMPLATE TYPE STRING,
FLG_CHARGE_CALC TYPE STRING,
FLG_MANDATORY TYPE STRING,
FLG_DEFAULT TYPE STRING,
FLG_VALIDATION TYPE STRING,
FLG_CONVERSION TYPE STRING,
FLG_SENSITIVE TYPE STRING,
VALIDATION_REGEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PF1/IV_TTYP_FLD_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_/PF1/IV_TTYP_FLD_STR-MANDT sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-CLEARING_AREA sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-TRANS_TYPE sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FCT_TYPE sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FIELD_GROUP sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-OBJECT_CATEGORY sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-OBJECT_FIELDNAME sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-PI_KIND sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_IS_CREDIT sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_HOLDER sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-TTGR_EV sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-TTGR_RCP_SPLIT sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-AMT_LIMIT sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-AMT_LIMIT_CUR sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-VALID sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_NO_RETURN sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_MAN_MNT sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FORM_TEMPLATE sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_CHARGE_CALC sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_MANDATORY sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_DEFAULT sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_VALIDATION sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_CONVERSION sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-FLG_SENSITIVE sy-vline 
WA_/PF1/IV_TTYP_FLD_STR-VALIDATION_REGEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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