ABAP Select data from SAP table FMCY_S_GTDATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCY_S_GTDATA
*  INTO TABLE @DATA(IT_FMCY_S_GTDATA2).
*--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_FMCY_S_GTDATA INDEX 1 INTO DATA(WA_FMCY_S_GTDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCY_S_GTDATA>-INCLUDE = 1.
<FMCY_S_GTDATA>-MANDT = 1.
<FMCY_S_GTDATA>-KOKRS = 1.
<FMCY_S_GTDATA>-QVERSN = 1.
<FMCY_S_GTDATA>-QGJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCY_S_GTDATA-KSTAR, sy-vline,
  WA_FMCY_S_GTDATA-OBJNR, sy-vline,
  WA_FMCY_S_GTDATA-FIKRS, sy-vline,
  WA_FMCY_S_GTDATA-ZVERSN, sy-vline,
  WA_FMCY_S_GTDATA-ZGJAHR, sy-vline,
  WA_FMCY_S_GTDATA-FM_OBJNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCY_S_GTDATA 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_FMCY_S_GTDATA 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_FMCY_S_GTDATA INTO WA_FMCY_S_GTDATA.


*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 QVERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMCY_S_GTDATA-QVERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCY_S_GTDATA-QVERSN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field QGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMCY_S_GTDATA-QGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCY_S_GTDATA-QGJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field ZGJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMCY_S_GTDATA-ZGJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCY_S_GTDATA-ZGJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field GNJHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMCY_S_GTDATA-GNJHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMCY_S_GTDATA-GNJHR.
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_FMCY_S_GTDATA_STR, 
INCLUDE TYPE STRING,
MANDT TYPE STRING,
KOKRS TYPE STRING,
QVERSN TYPE STRING,
QGJAHR TYPE STRING,
KSTAR TYPE STRING,
OBJNR TYPE STRING,
FIKRS TYPE STRING,
ZVERSN TYPE STRING,
ZGJAHR TYPE STRING,
FM_OBJNR TYPE STRING,
BUDCAT TYPE STRING,
VALTYPE TYPE STRING,
BUDTYPE TYPE STRING,
RPMAX TYPE STRING,
RTCUR TYPE STRING,
TSL01 TYPE STRING,
TSL02 TYPE STRING,
TSL03 TYPE STRING,
TSL04 TYPE STRING,
TSL05 TYPE STRING,
TSL06 TYPE STRING,
TSL07 TYPE STRING,
TSL08 TYPE STRING,
TSL09 TYPE STRING,
TSL10 TYPE STRING,
TSL11 TYPE STRING,
TSL12 TYPE STRING,
TSL13 TYPE STRING,
TSL14 TYPE STRING,
TSL15 TYPE STRING,
TSL16 TYPE STRING,
HSL01 TYPE STRING,
HSL02 TYPE STRING,
HSL03 TYPE STRING,
HSL04 TYPE STRING,
HSL05 TYPE STRING,
HSL06 TYPE STRING,
HSL07 TYPE STRING,
HSL08 TYPE STRING,
HSL09 TYPE STRING,
HSL10 TYPE STRING,
HSL11 TYPE STRING,
HSL12 TYPE STRING,
HSL13 TYPE STRING,
HSL14 TYPE STRING,
HSL15 TYPE STRING,
HSL16 TYPE STRING,
GNJHR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCY_S_GTDATA_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_FMCY_S_GTDATA_STR-INCLUDE sy-vline 
WA_FMCY_S_GTDATA_STR-MANDT sy-vline 
WA_FMCY_S_GTDATA_STR-KOKRS sy-vline 
WA_FMCY_S_GTDATA_STR-QVERSN sy-vline 
WA_FMCY_S_GTDATA_STR-QGJAHR sy-vline 
WA_FMCY_S_GTDATA_STR-KSTAR sy-vline 
WA_FMCY_S_GTDATA_STR-OBJNR sy-vline 
WA_FMCY_S_GTDATA_STR-FIKRS sy-vline 
WA_FMCY_S_GTDATA_STR-ZVERSN sy-vline 
WA_FMCY_S_GTDATA_STR-ZGJAHR sy-vline 
WA_FMCY_S_GTDATA_STR-FM_OBJNR sy-vline 
WA_FMCY_S_GTDATA_STR-BUDCAT sy-vline 
WA_FMCY_S_GTDATA_STR-VALTYPE sy-vline 
WA_FMCY_S_GTDATA_STR-BUDTYPE sy-vline 
WA_FMCY_S_GTDATA_STR-RPMAX sy-vline 
WA_FMCY_S_GTDATA_STR-RTCUR sy-vline 
WA_FMCY_S_GTDATA_STR-TSL01 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL02 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL03 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL04 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL05 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL06 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL07 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL08 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL09 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL10 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL11 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL12 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL13 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL14 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL15 sy-vline 
WA_FMCY_S_GTDATA_STR-TSL16 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL01 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL02 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL03 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL04 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL05 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL06 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL07 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL08 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL09 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL10 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL11 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL12 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL13 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL14 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL15 sy-vline 
WA_FMCY_S_GTDATA_STR-HSL16 sy-vline 
WA_FMCY_S_GTDATA_STR-GNJHR sy-vline      INTO ld_text SEPARATED BY SPACE.

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