ABAP Select data from SAP table /AIF/T_FINF_STR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /AIF/T_FINF_STR
*  INTO TABLE @DATA(IT_/AIF/T_FINF_STR2).
*--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_/AIF/T_FINF_STR INDEX 1 INTO DATA(WA_/AIF/T_FINF_STR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</AIF/T_FINF_STR>-MANDT = 1.
</AIF/T_FINF_STR>-NS = 1.
</AIF/T_FINF_STR>-IFNAME = 1.
</AIF/T_FINF_STR>-IFVERSION = 1.
</AIF/T_FINF_STR>-FILETYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/AIF/T_FINF_STR-CR_LF, sy-vline,
  WA_/AIF/T_FINF_STR-TEXTTYPE, sy-vline,
  WA_/AIF/T_FINF_STR-SEPARATOR, sy-vline,
  WA_/AIF/T_FINF_STR-HEADERLINE, sy-vline,
  WA_/AIF/T_FINF_STR-HEADERFIELDNAMES, sy-vline,
  WA_/AIF/T_FINF_STR-HEADERSTRUCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/AIF/T_FINF_STR 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_/AIF/T_FINF_STR 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_/AIF/T_FINF_STR INTO WA_/AIF/T_FINF_STR.


*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 ROOTS, internal->external for field HEADERSTRUCT
CALL FUNCTION 'CONVERSION_EXIT_ROOTS_OUTPUT'
  EXPORTING
    input =                      WA_/AIF/T_FINF_STR-HEADERSTRUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIF/T_FINF_STR-HEADERSTRUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ROOTS, internal->external for field FOOTERSTRUCT
CALL FUNCTION 'CONVERSION_EXIT_ROOTS_OUTPUT'
  EXPORTING
    input =                      WA_/AIF/T_FINF_STR-FOOTERSTRUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIF/T_FINF_STR-FOOTERSTRUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ROOTS, internal->external for field MAINSTRUCT
CALL FUNCTION 'CONVERSION_EXIT_ROOTS_OUTPUT'
  EXPORTING
    input =                      WA_/AIF/T_FINF_STR-MAINSTRUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIF/T_FINF_STR-MAINSTRUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ROOTS, internal->external for field RECTYPERAW
CALL FUNCTION 'CONVERSION_EXIT_ROOTS_OUTPUT'
  EXPORTING
    input =                      WA_/AIF/T_FINF_STR-RECTYPERAW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/AIF/T_FINF_STR-RECTYPERAW.
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_/AIF/T_FINF_STR_STR, 
MANDT TYPE STRING,
NS TYPE STRING,
IFNAME TYPE STRING,
IFVERSION TYPE STRING,
FILETYPE TYPE STRING,
CR_LF TYPE STRING,
TEXTTYPE TYPE STRING,
SEPARATOR TYPE STRING,
HEADERLINE TYPE STRING,
HEADERFIELDNAMES TYPE STRING,
HEADERSTRUCT TYPE STRING,
FOOTERLINE TYPE STRING,
FOOTERSTRUCT TYPE STRING,
MAINSTRUCT TYPE STRING,
RECTYPEOFFSET TYPE STRING,
RECTYPECHARS TYPE STRING,
DEF_FILENAME TYPE STRING,
LAST_REC_VALUE TYPE STRING,
DDICSTRUCTURE TYPE STRING,
DDICSTRUCTUREXI TYPE STRING,
PROXYCLASSNAMEXI TYPE STRING,
PROXYCLASSNAMECL TYPE STRING,
XILINESTRUCT TYPE STRING,
XILINEFIELD TYPE STRING,
MOVECORRESP TYPE STRING,
DDICSTRUCTURERAW TYPE STRING,
RECTYPERAW TYPE STRING,
FUBA_CHECK TYPE STRING,
FUBA_CHECK_XI TYPE STRING,
FUBA_INIT TYPE STRING,
FUBA_INIT_TRANS TYPE STRING,
COMMITONCE TYPE STRING,
CODEPAGE TYPE STRING,
IGN_CERR TYPE STRING,
REPLACEMENTCHAR TYPE STRING,
MSG_LIFETIME TYPE STRING,
TESTRUN TYPE STRING,
MONITORING TYPE STRING,
POPUP_MONITORING TYPE STRING,
DEBUG_USER TYPE STRING,
KSCHL TYPE STRING,
NASTFUNCTION TYPE STRING,
PROCESSINGTYPE TYPE STRING,
VAR_ASSIGN_TAB TYPE STRING,
SYSTEM_FIELD TYPE STRING,
RFCDEST TYPE STRING,
APPL_ENGINE_ID TYPE STRING,
CUST_NS_APPL TYPE STRING,
CUST_APPL_ENG_ID TYPE STRING,
PERS_ENGINE_ID TYPE STRING,
CUST_NS_PERS TYPE STRING,
CUST_PERS_ENG_ID TYPE STRING,
SEL_ENGINE_ID TYPE STRING,
CUST_NS_SEL TYPE STRING,
CUST_SEL_ENG_ID TYPE STRING,
LOG_ENGINE_ID TYPE STRING,
CUST_NS_LOG TYPE STRING,
CUST_LOG_ENG_ID TYPE STRING,
MESTYP TYPE STRING,
IDOCTP TYPE STRING,
CIMTYP TYPE STRING,
MESCOD TYPE STRING,
MESFCT TYPE STRING,
STATUS TYPE STRING,
END_DATE TYPE STRING,
CLIENT_CONTRL TYPE STRING,
PRE_PROCESSING TYPE STRING,
PRX_METHOD TYPE STRING,
EXTENDED_XML_HDL TYPE STRING,
FAULT_HANDLER TYPE STRING,
PRX_XMLTRANSFORM TYPE STRING,
KEEP_SEGMENTS TYPE STRING,
ALL_EXTENSIONS TYPE STRING,
DIRECTION TYPE STRING,
SERVICE_NAME TYPE STRING,
ENTITY_SET TYPE STRING,
COMPONENT TYPE STRING,
BUSINESS_PROCESS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/AIF/T_FINF_STR_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_/AIF/T_FINF_STR_STR-MANDT sy-vline 
WA_/AIF/T_FINF_STR_STR-NS sy-vline 
WA_/AIF/T_FINF_STR_STR-IFNAME sy-vline 
WA_/AIF/T_FINF_STR_STR-IFVERSION sy-vline 
WA_/AIF/T_FINF_STR_STR-FILETYPE sy-vline 
WA_/AIF/T_FINF_STR_STR-CR_LF sy-vline 
WA_/AIF/T_FINF_STR_STR-TEXTTYPE sy-vline 
WA_/AIF/T_FINF_STR_STR-SEPARATOR sy-vline 
WA_/AIF/T_FINF_STR_STR-HEADERLINE sy-vline 
WA_/AIF/T_FINF_STR_STR-HEADERFIELDNAMES sy-vline 
WA_/AIF/T_FINF_STR_STR-HEADERSTRUCT sy-vline 
WA_/AIF/T_FINF_STR_STR-FOOTERLINE sy-vline 
WA_/AIF/T_FINF_STR_STR-FOOTERSTRUCT sy-vline 
WA_/AIF/T_FINF_STR_STR-MAINSTRUCT sy-vline 
WA_/AIF/T_FINF_STR_STR-RECTYPEOFFSET sy-vline 
WA_/AIF/T_FINF_STR_STR-RECTYPECHARS sy-vline 
WA_/AIF/T_FINF_STR_STR-DEF_FILENAME sy-vline 
WA_/AIF/T_FINF_STR_STR-LAST_REC_VALUE sy-vline 
WA_/AIF/T_FINF_STR_STR-DDICSTRUCTURE sy-vline 
WA_/AIF/T_FINF_STR_STR-DDICSTRUCTUREXI sy-vline 
WA_/AIF/T_FINF_STR_STR-PROXYCLASSNAMEXI sy-vline 
WA_/AIF/T_FINF_STR_STR-PROXYCLASSNAMECL sy-vline 
WA_/AIF/T_FINF_STR_STR-XILINESTRUCT sy-vline 
WA_/AIF/T_FINF_STR_STR-XILINEFIELD sy-vline 
WA_/AIF/T_FINF_STR_STR-MOVECORRESP sy-vline 
WA_/AIF/T_FINF_STR_STR-DDICSTRUCTURERAW sy-vline 
WA_/AIF/T_FINF_STR_STR-RECTYPERAW sy-vline 
WA_/AIF/T_FINF_STR_STR-FUBA_CHECK sy-vline 
WA_/AIF/T_FINF_STR_STR-FUBA_CHECK_XI sy-vline 
WA_/AIF/T_FINF_STR_STR-FUBA_INIT sy-vline 
WA_/AIF/T_FINF_STR_STR-FUBA_INIT_TRANS sy-vline 
WA_/AIF/T_FINF_STR_STR-COMMITONCE sy-vline 
WA_/AIF/T_FINF_STR_STR-CODEPAGE sy-vline 
WA_/AIF/T_FINF_STR_STR-IGN_CERR sy-vline 
WA_/AIF/T_FINF_STR_STR-REPLACEMENTCHAR sy-vline 
WA_/AIF/T_FINF_STR_STR-MSG_LIFETIME sy-vline 
WA_/AIF/T_FINF_STR_STR-TESTRUN sy-vline 
WA_/AIF/T_FINF_STR_STR-MONITORING sy-vline 
WA_/AIF/T_FINF_STR_STR-POPUP_MONITORING sy-vline 
WA_/AIF/T_FINF_STR_STR-DEBUG_USER sy-vline 
WA_/AIF/T_FINF_STR_STR-KSCHL sy-vline 
WA_/AIF/T_FINF_STR_STR-NASTFUNCTION sy-vline 
WA_/AIF/T_FINF_STR_STR-PROCESSINGTYPE sy-vline 
WA_/AIF/T_FINF_STR_STR-VAR_ASSIGN_TAB sy-vline 
WA_/AIF/T_FINF_STR_STR-SYSTEM_FIELD sy-vline 
WA_/AIF/T_FINF_STR_STR-RFCDEST sy-vline 
WA_/AIF/T_FINF_STR_STR-APPL_ENGINE_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_NS_APPL sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_APPL_ENG_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-PERS_ENGINE_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_NS_PERS sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_PERS_ENG_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-SEL_ENGINE_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_NS_SEL sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_SEL_ENG_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-LOG_ENGINE_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_NS_LOG sy-vline 
WA_/AIF/T_FINF_STR_STR-CUST_LOG_ENG_ID sy-vline 
WA_/AIF/T_FINF_STR_STR-MESTYP sy-vline 
WA_/AIF/T_FINF_STR_STR-IDOCTP sy-vline 
WA_/AIF/T_FINF_STR_STR-CIMTYP sy-vline 
WA_/AIF/T_FINF_STR_STR-MESCOD sy-vline 
WA_/AIF/T_FINF_STR_STR-MESFCT sy-vline 
WA_/AIF/T_FINF_STR_STR-STATUS sy-vline 
WA_/AIF/T_FINF_STR_STR-END_DATE sy-vline 
WA_/AIF/T_FINF_STR_STR-CLIENT_CONTRL sy-vline 
WA_/AIF/T_FINF_STR_STR-PRE_PROCESSING sy-vline 
WA_/AIF/T_FINF_STR_STR-PRX_METHOD sy-vline 
WA_/AIF/T_FINF_STR_STR-EXTENDED_XML_HDL sy-vline 
WA_/AIF/T_FINF_STR_STR-FAULT_HANDLER sy-vline 
WA_/AIF/T_FINF_STR_STR-PRX_XMLTRANSFORM sy-vline 
WA_/AIF/T_FINF_STR_STR-KEEP_SEGMENTS sy-vline 
WA_/AIF/T_FINF_STR_STR-ALL_EXTENSIONS sy-vline 
WA_/AIF/T_FINF_STR_STR-DIRECTION sy-vline 
WA_/AIF/T_FINF_STR_STR-SERVICE_NAME sy-vline 
WA_/AIF/T_FINF_STR_STR-ENTITY_SET sy-vline 
WA_/AIF/T_FINF_STR_STR-COMPONENT sy-vline 
WA_/AIF/T_FINF_STR_STR-BUSINESS_PROCESS sy-vline      INTO ld_text SEPARATED BY SPACE.

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