ABAP Select data from SAP table FMSHD0400 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMSHD0400 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 FMSHD0400. 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 FMSHD0400 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_FMSHD0400 TYPE STANDARD TABLE OF FMSHD0400,
      WA_FMSHD0400 TYPE FMSHD0400,
      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: <FMSHD0400> TYPE FMSHD0400.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FMSHD0400.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FMSHD0400
  INTO TABLE IT_FMSHD0400.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMSHD0400
*  INTO TABLE @DATA(IT_FMSHD04002).
*--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_FMSHD0400 INDEX 1 INTO DATA(WA_FMSHD04002).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FMSHD0400 ASSIGNING <FMSHD0400>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMSHD0400>-STARTDATEFEBEP = 1.
<FMSHD0400>-ENDDATEFEBEP = 1.
<FMSHD0400>-STARTDATEBSID = 1.
<FMSHD0400>-ENDDATEBSID = 1.
<FMSHD0400>-NAMESKNA1 = 1.

ENDLOOP.

LOOP AT IT_FMSHD0400 INTO WA_FMSHD0400.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMSHD0400-STRASSEKNA1, sy-vline,
  WA_FMSHD0400-PLZKNA1, sy-vline,
  WA_FMSHD0400-ORTKNA1, sy-vline,
  WA_FMSHD0400-KUNNRKNA1, sy-vline,
  WA_FMSHD0400-CLEARVZ1, sy-vline,
  WA_FMSHD0400-CLEARVZ2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMSHD0400 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_FMSHD0400 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_FMSHD0400 INTO WA_FMSHD0400.


*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 KUNNRKNA1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMSHD0400-KUNNRKNA1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMSHD0400-KUNNRKNA1.
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_FMSHD0400_STR, 
STARTDATEFEBEP TYPE STRING,
ENDDATEFEBEP TYPE STRING,
STARTDATEBSID TYPE STRING,
ENDDATEBSID TYPE STRING,
NAMESKNA1 TYPE STRING,
STRASSEKNA1 TYPE STRING,
PLZKNA1 TYPE STRING,
ORTKNA1 TYPE STRING,
KUNNRKNA1 TYPE STRING,
CLEARVZ1 TYPE STRING,
CLEARVZ2 TYPE STRING,
CLEARVZ3 TYPE STRING,
CLEARVZ4 TYPE STRING,
CLEARVZ5 TYPE STRING,
BUKRS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMSHD0400_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_FMSHD0400_STR-STARTDATEFEBEP sy-vline 
WA_FMSHD0400_STR-ENDDATEFEBEP sy-vline 
WA_FMSHD0400_STR-STARTDATEBSID sy-vline 
WA_FMSHD0400_STR-ENDDATEBSID sy-vline 
WA_FMSHD0400_STR-NAMESKNA1 sy-vline 
WA_FMSHD0400_STR-STRASSEKNA1 sy-vline 
WA_FMSHD0400_STR-PLZKNA1 sy-vline 
WA_FMSHD0400_STR-ORTKNA1 sy-vline 
WA_FMSHD0400_STR-KUNNRKNA1 sy-vline 
WA_FMSHD0400_STR-CLEARVZ1 sy-vline 
WA_FMSHD0400_STR-CLEARVZ2 sy-vline 
WA_FMSHD0400_STR-CLEARVZ3 sy-vline 
WA_FMSHD0400_STR-CLEARVZ4 sy-vline 
WA_FMSHD0400_STR-CLEARVZ5 sy-vline 
WA_FMSHD0400_STR-BUKRS sy-vline      INTO ld_text SEPARATED BY SPACE.

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