ABAP Select data from SAP table FIAAGENS_FRM_LTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIAAGENS_FRM_LTR
*  INTO TABLE @DATA(IT_FIAAGENS_FRM_LTR2).
*--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_FIAAGENS_FRM_LTR INDEX 1 INTO DATA(WA_FIAAGENS_FRM_LTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIAAGENS_FRM_LTR>-MASTERFIXEDASSET = 1.
<FIAAGENS_FRM_LTR>-FIXEDASSET = 1.
<FIAAGENS_FRM_LTR>-VALIDITYSTARTDATE = 1.
<FIAAGENS_FRM_LTR>-INVENTORY = 1.
<FIAAGENS_FRM_LTR>-FIXEDASSETDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIAAGENS_FRM_LTR-ASSETADDITIONALDESCRIPTION, sy-vline,
  WA_FIAAGENS_FRM_LTR-NATIONALCLASSIFICATION, sy-vline,
  WA_FIAAGENS_FRM_LTR-NATIONALCLASSIFICATIONDESC, sy-vline,
  WA_FIAAGENS_FRM_LTR-ASSETSERIALNUMBER, sy-vline,
  WA_FIAAGENS_FRM_LTR-ACQUISITIONVALUEAMTINCCCRCY, sy-vline,
  WA_FIAAGENS_FRM_LTR-OLDASSETPLANT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIAAGENS_FRM_LTR 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_FIAAGENS_FRM_LTR 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_FIAAGENS_FRM_LTR INTO WA_FIAAGENS_FRM_LTR.


*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 ALPHA, internal->external for field MASTERFIXEDASSET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIAAGENS_FRM_LTR-MASTERFIXEDASSET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAAGENS_FRM_LTR-MASTERFIXEDASSET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FIXEDASSET
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIAAGENS_FRM_LTR-FIXEDASSET
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAAGENS_FRM_LTR-FIXEDASSET.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field ASSETSERIALNUMBER
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_FIAAGENS_FRM_LTR-ASSETSERIALNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAAGENS_FRM_LTR-ASSETSERIALNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ACQUISITIONVALUEAMTINCCCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_FIAAGENS_FRM_LTR-ACQUISITIONVALUEAMTINCCCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAAGENS_FRM_LTR-ACQUISITIONVALUEAMTINCCCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field OLDASSETCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIAAGENS_FRM_LTR-OLDASSETCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAAGENS_FRM_LTR-OLDASSETCOSTCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field NEWASSETCOSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FIAAGENS_FRM_LTR-NEWASSETCOSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAAGENS_FRM_LTR-NEWASSETCOSTCENTER.
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_FIAAGENS_FRM_LTR_STR, 
MASTERFIXEDASSET TYPE STRING,
FIXEDASSET TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
INVENTORY TYPE STRING,
FIXEDASSETDESCRIPTION TYPE STRING,
ASSETADDITIONALDESCRIPTION TYPE STRING,
NATIONALCLASSIFICATION TYPE STRING,
NATIONALCLASSIFICATIONDESC TYPE STRING,
ASSETSERIALNUMBER TYPE STRING,
ACQUISITIONVALUEAMTINCCCRCY TYPE STRING,
OLDASSETPLANT TYPE STRING,
OLDASSETLOCATION TYPE STRING,
NEWASSETPLANT TYPE STRING,
NEWASSETLOCATION TYPE STRING,
OLDASSETCOSTCENTER TYPE STRING,
NEWASSETCOSTCENTER TYPE STRING,
FIXEDASSETFORMNUMBER TYPE STRING,
COMPANYCODECURRENCY_FOR_LINK TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIAAGENS_FRM_LTR_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_FIAAGENS_FRM_LTR_STR-MASTERFIXEDASSET sy-vline 
WA_FIAAGENS_FRM_LTR_STR-FIXEDASSET sy-vline 
WA_FIAAGENS_FRM_LTR_STR-VALIDITYSTARTDATE sy-vline 
WA_FIAAGENS_FRM_LTR_STR-INVENTORY sy-vline 
WA_FIAAGENS_FRM_LTR_STR-FIXEDASSETDESCRIPTION sy-vline 
WA_FIAAGENS_FRM_LTR_STR-ASSETADDITIONALDESCRIPTION sy-vline 
WA_FIAAGENS_FRM_LTR_STR-NATIONALCLASSIFICATION sy-vline 
WA_FIAAGENS_FRM_LTR_STR-NATIONALCLASSIFICATIONDESC sy-vline 
WA_FIAAGENS_FRM_LTR_STR-ASSETSERIALNUMBER sy-vline 
WA_FIAAGENS_FRM_LTR_STR-ACQUISITIONVALUEAMTINCCCRCY sy-vline 
WA_FIAAGENS_FRM_LTR_STR-OLDASSETPLANT sy-vline 
WA_FIAAGENS_FRM_LTR_STR-OLDASSETLOCATION sy-vline 
WA_FIAAGENS_FRM_LTR_STR-NEWASSETPLANT sy-vline 
WA_FIAAGENS_FRM_LTR_STR-NEWASSETLOCATION sy-vline 
WA_FIAAGENS_FRM_LTR_STR-OLDASSETCOSTCENTER sy-vline 
WA_FIAAGENS_FRM_LTR_STR-NEWASSETCOSTCENTER sy-vline 
WA_FIAAGENS_FRM_LTR_STR-FIXEDASSETFORMNUMBER sy-vline 
WA_FIAAGENS_FRM_LTR_STR-COMPANYCODECURRENCY_FOR_LINK sy-vline 
WA_FIAAGENS_FRM_LTR_STR-COMPANYCODE sy-vline 
WA_FIAAGENS_FRM_LTR_STR-COMPANYCODENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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