ABAP Select data from SAP table FRMLS_LIST_COMP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FRMLS_LIST_COMP
*  INTO TABLE @DATA(IT_FRMLS_LIST_COMP2).
*--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_FRMLS_LIST_COMP INDEX 1 INTO DATA(WA_FRMLS_LIST_COMP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FRMLS_LIST_COMP>-MANDT = 1.
<FRMLS_LIST_COMP>-RECN = 1.
<FRMLS_LIST_COMP>-RECNMST = 1.
<FRMLS_LIST_COMP>-RECNROOT = 1.
<FRMLS_LIST_COMP>-AENNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FRMLS_LIST_COMP-VALFR, sy-vline,
  WA_FRMLS_LIST_COMP-VALTO, sy-vline,
  WA_FRMLS_LIST_COMP-LINEMODE, sy-vline,
  WA_FRMLS_LIST_COMP-LOCKMODE, sy-vline,
  WA_FRMLS_LIST_COMP-STATUS, sy-vline,
  WA_FRMLS_LIST_COMP-STATUSCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FRMLS_LIST_COMP 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_FRMLS_LIST_COMP 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_FRMLS_LIST_COMP INTO WA_FRMLS_LIST_COMP.


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

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

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_LIST_COMP-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_LIST_COMP-UNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit SPEC1, internal->external for field SUBID_OUP
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_LIST_COMP-SUBID_OUP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_LIST_COMP-SUBID_OUP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SPEC1, internal->external for field SUBID
CALL FUNCTION 'CONVERSION_EXIT_SPEC1_OUTPUT'
  EXPORTING
    input =                      WA_FRMLS_LIST_COMP-SUBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FRMLS_LIST_COMP-SUBID.
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_FRMLS_LIST_COMP_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
RECNMST TYPE STRING,
RECNROOT TYPE STRING,
AENNR TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
LINEMODE TYPE STRING,
LOCKMODE TYPE STRING,
STATUS TYPE STRING,
STATUSCODE TYPE STRING,
SUBRECN TYPE STRING,
COMPTGT TYPE STRING,
COMPTGT_ERR_FLG TYPE STRING,
OPLOW TYPE STRING,
COMPLOW TYPE STRING,
OPUP TYPE STRING,
COMPUPP TYPE STRING,
UNIT TYPE STRING,
EXCVAL TYPE STRING,
ADDVAL TYPE STRING,
COMPTGT_FLT TYPE STRING,
COMPLOW_FLT TYPE STRING,
COMPUPP_FLT TYPE STRING,
OVR_FACTOR TYPE STRING,
SUBRECN_OUP TYPE STRING,
SUBID_OUP TYPE STRING,
IDENT_OUP TYPE STRING,
SUBID TYPE STRING,
IDENT TYPE STRING,
SUBCAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FRMLS_LIST_COMP_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_FRMLS_LIST_COMP_STR-MANDT sy-vline 
WA_FRMLS_LIST_COMP_STR-RECN sy-vline 
WA_FRMLS_LIST_COMP_STR-RECNMST sy-vline 
WA_FRMLS_LIST_COMP_STR-RECNROOT sy-vline 
WA_FRMLS_LIST_COMP_STR-AENNR sy-vline 
WA_FRMLS_LIST_COMP_STR-VALFR sy-vline 
WA_FRMLS_LIST_COMP_STR-VALTO sy-vline 
WA_FRMLS_LIST_COMP_STR-LINEMODE sy-vline 
WA_FRMLS_LIST_COMP_STR-LOCKMODE sy-vline 
WA_FRMLS_LIST_COMP_STR-STATUS sy-vline 
WA_FRMLS_LIST_COMP_STR-STATUSCODE sy-vline 
WA_FRMLS_LIST_COMP_STR-SUBRECN sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPTGT sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPTGT_ERR_FLG sy-vline 
WA_FRMLS_LIST_COMP_STR-OPLOW sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPLOW sy-vline 
WA_FRMLS_LIST_COMP_STR-OPUP sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPUPP sy-vline 
WA_FRMLS_LIST_COMP_STR-UNIT sy-vline 
WA_FRMLS_LIST_COMP_STR-EXCVAL sy-vline 
WA_FRMLS_LIST_COMP_STR-ADDVAL sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPTGT_FLT sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPLOW_FLT sy-vline 
WA_FRMLS_LIST_COMP_STR-COMPUPP_FLT sy-vline 
WA_FRMLS_LIST_COMP_STR-OVR_FACTOR sy-vline 
WA_FRMLS_LIST_COMP_STR-SUBRECN_OUP sy-vline 
WA_FRMLS_LIST_COMP_STR-SUBID_OUP sy-vline 
WA_FRMLS_LIST_COMP_STR-IDENT_OUP sy-vline 
WA_FRMLS_LIST_COMP_STR-SUBID sy-vline 
WA_FRMLS_LIST_COMP_STR-IDENT sy-vline 
WA_FRMLS_LIST_COMP_STR-SUBCAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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