ABAP Select data from SAP table FMCA_ADDITEM_PARMS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMCA_ADDITEM_PARMS
*  INTO TABLE @DATA(IT_FMCA_ADDITEM_PARMS2).
*--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_FMCA_ADDITEM_PARMS INDEX 1 INTO DATA(WA_FMCA_ADDITEM_PARMS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMCA_ADDITEM_PARMS>-P001 = 1.
<FMCA_ADDITEM_PARMS>-P002 = 1.
<FMCA_ADDITEM_PARMS>-P003 = 1.
<FMCA_ADDITEM_PARMS>-P004 = 1.
<FMCA_ADDITEM_PARMS>-P005 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMCA_ADDITEM_PARMS-P006, sy-vline,
  WA_FMCA_ADDITEM_PARMS-P007, sy-vline,
  WA_FMCA_ADDITEM_PARMS-P008, sy-vline,
  WA_FMCA_ADDITEM_PARMS-P009, sy-vline,
  WA_FMCA_ADDITEM_PARMS-P010, sy-vline,
  WA_FMCA_ADDITEM_PARMS-P011, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMCA_ADDITEM_PARMS 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_FMCA_ADDITEM_PARMS 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_FMCA_ADDITEM_PARMS INTO WA_FMCA_ADDITEM_PARMS.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FMCA_ADDITEM_PARMS_STR, 
P001 TYPE STRING,
P002 TYPE STRING,
P003 TYPE STRING,
P004 TYPE STRING,
P005 TYPE STRING,
P006 TYPE STRING,
P007 TYPE STRING,
P008 TYPE STRING,
P009 TYPE STRING,
P010 TYPE STRING,
P011 TYPE STRING,
P012 TYPE STRING,
P013 TYPE STRING,
P014 TYPE STRING,
P015 TYPE STRING,
P016 TYPE STRING,
P017 TYPE STRING,
P018 TYPE STRING,
P019 TYPE STRING,
P020 TYPE STRING,
P021 TYPE STRING,
P022 TYPE STRING,
P023 TYPE STRING,
P024 TYPE STRING,
P025 TYPE STRING,
P026 TYPE STRING,
P027 TYPE STRING,
P028 TYPE STRING,
P029 TYPE STRING,
P030 TYPE STRING,
P031 TYPE STRING,
P032 TYPE STRING,
P033 TYPE STRING,
P034 TYPE STRING,
P035 TYPE STRING,
P036 TYPE STRING,
P037 TYPE STRING,
P038 TYPE STRING,
P039 TYPE STRING,
P040 TYPE STRING,
P041 TYPE STRING,
P042 TYPE STRING,
P043 TYPE STRING,
P044 TYPE STRING,
P045 TYPE STRING,
P046 TYPE STRING,
P047 TYPE STRING,
P048 TYPE STRING,
P049 TYPE STRING,
P050 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMCA_ADDITEM_PARMS_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_FMCA_ADDITEM_PARMS_STR-P001 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P002 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P003 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P004 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P005 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P006 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P007 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P008 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P009 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P010 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P011 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P012 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P013 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P014 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P015 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P016 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P017 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P018 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P019 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P020 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P021 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P022 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P023 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P024 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P025 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P026 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P027 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P028 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P029 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P030 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P031 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P032 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P033 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P034 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P035 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P036 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P037 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P038 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P039 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P040 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P041 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P042 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P043 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P044 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P045 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P046 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P047 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P048 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P049 sy-vline 
WA_FMCA_ADDITEM_PARMS_STR-P050 sy-vline      INTO ld_text SEPARATED BY SPACE.

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