ABAP Select data from SAP table FMSHD_GRID into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMSHD_GRID
*  INTO TABLE @DATA(IT_FMSHD_GRID2).
*--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_FMSHD_GRID INDEX 1 INTO DATA(WA_FMSHD_GRID2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMSHD_GRID>-MANDT = 1.
<FMSHD_GRID>-KUKEY = 1.
<FMSHD_GRID>-ESNUM = 1.
<FMSHD_GRID>-BUKRS = 1.
<FMSHD_GRID>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMSHD_GRID-GJAHR, sy-vline,
  WA_FMSHD_GRID-BUZEI, sy-vline,
  WA_FMSHD_GRID-KGRUND, sy-vline,
  WA_FMSHD_GRID-KGRUNDTEXT, sy-vline,
  WA_FMSHD_GRID-ACTUSER, sy-vline,
  WA_FMSHD_GRID-STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMSHD_GRID 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_FMSHD_GRID 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_FMSHD_GRID INTO WA_FMSHD_GRID.


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

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

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

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

*Conversion exit GJAHR, internal->external for field SEQ_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMSHD_GRID-SEQ_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSHD_GRID-SEQ_GJAHR.
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_FMSHD_GRID_STR, 
MANDT TYPE STRING,
KUKEY TYPE STRING,
ESNUM TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
KGRUND TYPE STRING,
KGRUNDTEXT TYPE STRING,
ACTUSER TYPE STRING,
STATUS TYPE STRING,
KUNNR TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
DMBTR TYPE STRING,
HWAER TYPE STRING,
SHKZG TYPE STRING,
AZNUM TYPE STRING,
AZDAT TYPE STRING,
HBKID TYPE STRING,
HKTID TYPE STRING,
PARTN TYPE STRING,
PAKTO TYPE STRING,
PABLZ TYPE STRING,
CLEARVZ TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
LASTCHANGER TYPE STRING,
RESUBMITDT TYPE STRING,
LONGTEXTEXIST TYPE STRING,
LONGTEXTGUID TYPE STRING,
SEQ_BUKRS TYPE STRING,
SEQ_BELNR TYPE STRING,
SEQ_GJAHR TYPE STRING,
KURZTEXT TYPE STRING,
CELLTAB TYPE STRING,
LINECOLOR TYPE STRING,
DIRTYFLAG TYPE STRING,
ICON_ACTUSER TYPE STRING,
ICON_STATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMSHD_GRID_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_FMSHD_GRID_STR-MANDT sy-vline 
WA_FMSHD_GRID_STR-KUKEY sy-vline 
WA_FMSHD_GRID_STR-ESNUM sy-vline 
WA_FMSHD_GRID_STR-BUKRS sy-vline 
WA_FMSHD_GRID_STR-BELNR sy-vline 
WA_FMSHD_GRID_STR-GJAHR sy-vline 
WA_FMSHD_GRID_STR-BUZEI sy-vline 
WA_FMSHD_GRID_STR-KGRUND sy-vline 
WA_FMSHD_GRID_STR-KGRUNDTEXT sy-vline 
WA_FMSHD_GRID_STR-ACTUSER sy-vline 
WA_FMSHD_GRID_STR-STATUS sy-vline 
WA_FMSHD_GRID_STR-KUNNR sy-vline 
WA_FMSHD_GRID_STR-BLART sy-vline 
WA_FMSHD_GRID_STR-BLDAT sy-vline 
WA_FMSHD_GRID_STR-BUDAT sy-vline 
WA_FMSHD_GRID_STR-DMBTR sy-vline 
WA_FMSHD_GRID_STR-HWAER sy-vline 
WA_FMSHD_GRID_STR-SHKZG sy-vline 
WA_FMSHD_GRID_STR-AZNUM sy-vline 
WA_FMSHD_GRID_STR-AZDAT sy-vline 
WA_FMSHD_GRID_STR-HBKID sy-vline 
WA_FMSHD_GRID_STR-HKTID sy-vline 
WA_FMSHD_GRID_STR-PARTN sy-vline 
WA_FMSHD_GRID_STR-PAKTO sy-vline 
WA_FMSHD_GRID_STR-PABLZ sy-vline 
WA_FMSHD_GRID_STR-CLEARVZ sy-vline 
WA_FMSHD_GRID_STR-XBLNR sy-vline 
WA_FMSHD_GRID_STR-ZUONR sy-vline 
WA_FMSHD_GRID_STR-LASTCHANGER sy-vline 
WA_FMSHD_GRID_STR-RESUBMITDT sy-vline 
WA_FMSHD_GRID_STR-LONGTEXTEXIST sy-vline 
WA_FMSHD_GRID_STR-LONGTEXTGUID sy-vline 
WA_FMSHD_GRID_STR-SEQ_BUKRS sy-vline 
WA_FMSHD_GRID_STR-SEQ_BELNR sy-vline 
WA_FMSHD_GRID_STR-SEQ_GJAHR sy-vline 
WA_FMSHD_GRID_STR-KURZTEXT sy-vline 
WA_FMSHD_GRID_STR-CELLTAB sy-vline 
WA_FMSHD_GRID_STR-LINECOLOR sy-vline 
WA_FMSHD_GRID_STR-DIRTYFLAG sy-vline 
WA_FMSHD_GRID_STR-ICON_ACTUSER sy-vline 
WA_FMSHD_GRID_STR-ICON_STATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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