ABAP Select data from SAP table FOTREQSCRN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FOTREQSCRN
*  INTO TABLE @DATA(IT_FOTREQSCRN2).
*--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_FOTREQSCRN INDEX 1 INTO DATA(WA_FOTREQSCRN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FOTREQSCRN>-XMARK = 1.
<FOTREQSCRN>-RICON = 1.
<FOTREQSCRN>-DECL_TYPE = 1.
<FOTREQSCRN>-TBUKRS = 1.
<FOTREQSCRN>-DECL_CTRY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FOTREQSCRN-DECL_PER, sy-vline,
  WA_FOTREQSCRN-PER_ITVL, sy-vline,
  WA_FOTREQSCRN-RFD_CTRY, sy-vline,
  WA_FOTREQSCRN-MANDT, sy-vline,
  WA_FOTREQSCRN-REQID, sy-vline,
  WA_FOTREQSCRN-DECL_YEAR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FOTREQSCRN 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_FOTREQSCRN 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_FOTREQSCRN INTO WA_FOTREQSCRN.


*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 AC152, internal->external for field RBASE_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FOTREQSCRN-RBASE_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOTREQSCRN-RBASE_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RTX_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FOTREQSCRN-RTX_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOTREQSCRN-RTX_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field RGROSS_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FOTREQSCRN-RGROSS_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FOTREQSCRN-RGROSS_AMT.
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_FOTREQSCRN_STR, 
XMARK TYPE STRING,
RICON TYPE STRING,
DECL_TYPE TYPE STRING,
TBUKRS TYPE STRING,
DECL_CTRY TYPE STRING,
DECL_PER TYPE STRING,
PER_ITVL TYPE STRING,
RFD_CTRY TYPE STRING,
MANDT TYPE STRING,
REQID TYPE STRING,
DECL_YEAR TYPE STRING,
DECL_PER_FROM TYPE STRING,
DECL_PER_TO TYPE STRING,
RBASE_AMT TYPE STRING,
RTX_AMT TYPE STRING,
RGROSS_AMT TYPE STRING,
REP_CURR TYPE STRING,
DECL_LEGID TYPE STRING,
DECL_SENID TYPE STRING,
SENDTSTMP TYPE STRING,
PROTTSTMP TYPE STRING,
CREATSTMP TYPE STRING,
CHANTSTMP TYPE STRING,
USERCREATE TYPE STRING,
USERSENT TYPE STRING,
USERCHANGE TYPE STRING,
DATEREPCONF TYPE STRING,
DATERFDCONF TYPE STRING,
DATETAXASSE TYPE STRING,
REQ_STATUS TYPE STRING,
XIMESSKEY TYPE STRING,
FOT_TDATA TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
AGG_STATUS TYPE STRING,
T_CELLTYPE TYPE STRING,
T_CELLSTYL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FOTREQSCRN_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_FOTREQSCRN_STR-XMARK sy-vline 
WA_FOTREQSCRN_STR-RICON sy-vline 
WA_FOTREQSCRN_STR-DECL_TYPE sy-vline 
WA_FOTREQSCRN_STR-TBUKRS sy-vline 
WA_FOTREQSCRN_STR-DECL_CTRY sy-vline 
WA_FOTREQSCRN_STR-DECL_PER sy-vline 
WA_FOTREQSCRN_STR-PER_ITVL sy-vline 
WA_FOTREQSCRN_STR-RFD_CTRY sy-vline 
WA_FOTREQSCRN_STR-MANDT sy-vline 
WA_FOTREQSCRN_STR-REQID sy-vline 
WA_FOTREQSCRN_STR-DECL_YEAR sy-vline 
WA_FOTREQSCRN_STR-DECL_PER_FROM sy-vline 
WA_FOTREQSCRN_STR-DECL_PER_TO sy-vline 
WA_FOTREQSCRN_STR-RBASE_AMT sy-vline 
WA_FOTREQSCRN_STR-RTX_AMT sy-vline 
WA_FOTREQSCRN_STR-RGROSS_AMT sy-vline 
WA_FOTREQSCRN_STR-REP_CURR sy-vline 
WA_FOTREQSCRN_STR-DECL_LEGID sy-vline 
WA_FOTREQSCRN_STR-DECL_SENID sy-vline 
WA_FOTREQSCRN_STR-SENDTSTMP sy-vline 
WA_FOTREQSCRN_STR-PROTTSTMP sy-vline 
WA_FOTREQSCRN_STR-CREATSTMP sy-vline 
WA_FOTREQSCRN_STR-CHANTSTMP sy-vline 
WA_FOTREQSCRN_STR-USERCREATE sy-vline 
WA_FOTREQSCRN_STR-USERSENT sy-vline 
WA_FOTREQSCRN_STR-USERCHANGE sy-vline 
WA_FOTREQSCRN_STR-DATEREPCONF sy-vline 
WA_FOTREQSCRN_STR-DATERFDCONF sy-vline 
WA_FOTREQSCRN_STR-DATETAXASSE sy-vline 
WA_FOTREQSCRN_STR-REQ_STATUS sy-vline 
WA_FOTREQSCRN_STR-XIMESSKEY sy-vline 
WA_FOTREQSCRN_STR-FOT_TDATA sy-vline 
WA_FOTREQSCRN_STR-CPUDT sy-vline 
WA_FOTREQSCRN_STR-CPUTM sy-vline 
WA_FOTREQSCRN_STR-AGG_STATUS sy-vline 
WA_FOTREQSCRN_STR-T_CELLTYPE sy-vline 
WA_FOTREQSCRN_STR-T_CELLSTYL sy-vline      INTO ld_text SEPARATED BY SPACE.

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