ABAP Select data from SAP table TFRS_INFO_HISTORY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFRS_INFO_HISTORY
*  INTO TABLE @DATA(IT_TFRS_INFO_HISTORY2).
*--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_TFRS_INFO_HISTORY INDEX 1 INTO DATA(WA_TFRS_INFO_HISTORY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFRS_INFO_HISTORY>-MOD = 1.
<TFRS_INFO_HISTORY>-PHYSID = 1.
<TFRS_INFO_HISTORY>-LOGIDX = 1.
<TFRS_INFO_HISTORY>-PREFFAMILY = 1.
<TFRS_INFO_HISTORY>-PREFSUBFAMILY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFRS_INFO_HISTORY-FAMILY, sy-vline,
  WA_TFRS_INFO_HISTORY-SUBFAMILY, sy-vline,
  WA_TFRS_INFO_HISTORY-PSFAMILY, sy-vline,
  WA_TFRS_INFO_HISTORY-PSNAME, sy-vline,
  WA_TFRS_INFO_HISTORY-PANOSE1, sy-vline,
  WA_TFRS_INFO_HISTORY-BOLD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFRS_INFO_HISTORY 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_TFRS_INFO_HISTORY 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_TFRS_INFO_HISTORY INTO WA_TFRS_INFO_HISTORY.


*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_TFRS_INFO_HISTORY_STR, 
MOD TYPE STRING,
PHYSID TYPE STRING,
LOGIDX TYPE STRING,
PREFFAMILY TYPE STRING,
PREFSUBFAMILY TYPE STRING,
FAMILY TYPE STRING,
SUBFAMILY TYPE STRING,
PSFAMILY TYPE STRING,
PSNAME TYPE STRING,
PANOSE1 TYPE STRING,
BOLD TYPE STRING,
ITALIC TYPE STRING,
STYLE TYPE STRING,
VARIANT TYPE STRING,
OPTSIZE TYPE STRING,
WEIGHT TYPE STRING,
STRETCH TYPE STRING,
ACTIVE TYPE STRING,
ITALICANGLE TYPE STRING,
FIXEDPITCH TYPE STRING,
SERIF TYPE STRING,
FLAVOR TYPE STRING,
GLYPHNAMES TYPE STRING,
ENCODING TYPE STRING,
FULLNAME TYPE STRING,
VERSION TYPE STRING,
VENDORID TYPE STRING,
VENDOR TYPE STRING,
COPYRIGHT TYPE STRING,
FSSELECTION TYPE STRING,
UNITSPEREM TYPE STRING,
XMIN TYPE STRING,
YMIN TYPE STRING,
XMAX TYPE STRING,
YMAX TYPE STRING,
ASCENDER TYPE STRING,
DESCENDER TYPE STRING,
FSTYPE TYPE STRING,
XHEIGHT TYPE STRING,
CAPHEIGHT TYPE STRING,
UNICODERANGE TYPE STRING,
UNAME TYPE STRING,
TIMESTMP TYPE STRING,
SYSID TYPE STRING,
SAPRL TYPE STRING,
CREATED_BY_SAP TYPE STRING,
ADDITIONAL_INFO TYPE STRING,
CDAT_DATE TYPE STRING,
CDAT_TIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFRS_INFO_HISTORY_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_TFRS_INFO_HISTORY_STR-MOD sy-vline 
WA_TFRS_INFO_HISTORY_STR-PHYSID sy-vline 
WA_TFRS_INFO_HISTORY_STR-LOGIDX sy-vline 
WA_TFRS_INFO_HISTORY_STR-PREFFAMILY sy-vline 
WA_TFRS_INFO_HISTORY_STR-PREFSUBFAMILY sy-vline 
WA_TFRS_INFO_HISTORY_STR-FAMILY sy-vline 
WA_TFRS_INFO_HISTORY_STR-SUBFAMILY sy-vline 
WA_TFRS_INFO_HISTORY_STR-PSFAMILY sy-vline 
WA_TFRS_INFO_HISTORY_STR-PSNAME sy-vline 
WA_TFRS_INFO_HISTORY_STR-PANOSE1 sy-vline 
WA_TFRS_INFO_HISTORY_STR-BOLD sy-vline 
WA_TFRS_INFO_HISTORY_STR-ITALIC sy-vline 
WA_TFRS_INFO_HISTORY_STR-STYLE sy-vline 
WA_TFRS_INFO_HISTORY_STR-VARIANT sy-vline 
WA_TFRS_INFO_HISTORY_STR-OPTSIZE sy-vline 
WA_TFRS_INFO_HISTORY_STR-WEIGHT sy-vline 
WA_TFRS_INFO_HISTORY_STR-STRETCH sy-vline 
WA_TFRS_INFO_HISTORY_STR-ACTIVE sy-vline 
WA_TFRS_INFO_HISTORY_STR-ITALICANGLE sy-vline 
WA_TFRS_INFO_HISTORY_STR-FIXEDPITCH sy-vline 
WA_TFRS_INFO_HISTORY_STR-SERIF sy-vline 
WA_TFRS_INFO_HISTORY_STR-FLAVOR sy-vline 
WA_TFRS_INFO_HISTORY_STR-GLYPHNAMES sy-vline 
WA_TFRS_INFO_HISTORY_STR-ENCODING sy-vline 
WA_TFRS_INFO_HISTORY_STR-FULLNAME sy-vline 
WA_TFRS_INFO_HISTORY_STR-VERSION sy-vline 
WA_TFRS_INFO_HISTORY_STR-VENDORID sy-vline 
WA_TFRS_INFO_HISTORY_STR-VENDOR sy-vline 
WA_TFRS_INFO_HISTORY_STR-COPYRIGHT sy-vline 
WA_TFRS_INFO_HISTORY_STR-FSSELECTION sy-vline 
WA_TFRS_INFO_HISTORY_STR-UNITSPEREM sy-vline 
WA_TFRS_INFO_HISTORY_STR-XMIN sy-vline 
WA_TFRS_INFO_HISTORY_STR-YMIN sy-vline 
WA_TFRS_INFO_HISTORY_STR-XMAX sy-vline 
WA_TFRS_INFO_HISTORY_STR-YMAX sy-vline 
WA_TFRS_INFO_HISTORY_STR-ASCENDER sy-vline 
WA_TFRS_INFO_HISTORY_STR-DESCENDER sy-vline 
WA_TFRS_INFO_HISTORY_STR-FSTYPE sy-vline 
WA_TFRS_INFO_HISTORY_STR-XHEIGHT sy-vline 
WA_TFRS_INFO_HISTORY_STR-CAPHEIGHT sy-vline 
WA_TFRS_INFO_HISTORY_STR-UNICODERANGE sy-vline 
WA_TFRS_INFO_HISTORY_STR-UNAME sy-vline 
WA_TFRS_INFO_HISTORY_STR-TIMESTMP sy-vline 
WA_TFRS_INFO_HISTORY_STR-SYSID sy-vline 
WA_TFRS_INFO_HISTORY_STR-SAPRL sy-vline 
WA_TFRS_INFO_HISTORY_STR-CREATED_BY_SAP sy-vline 
WA_TFRS_INFO_HISTORY_STR-ADDITIONAL_INFO sy-vline 
WA_TFRS_INFO_HISTORY_STR-CDAT_DATE sy-vline 
WA_TFRS_INFO_HISTORY_STR-CDAT_TIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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