ABAP Select data from SAP table FCL_STR_AMTPOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FCL_STR_AMTPOS
*  INTO TABLE @DATA(IT_FCL_STR_AMTPOS2).
*--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_FCL_STR_AMTPOS INDEX 1 INTO DATA(WA_FCL_STR_AMTPOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FCL_STR_AMTPOS>-O_IRUNIT = 1.
<FCL_STR_AMTPOS>-A_AMT = 1.
<FCL_STR_AMTPOS>-A_AMTMIN = 1.
<FCL_STR_AMTPOS>-A_AMTMAX = 1.
<FCL_STR_AMTPOS>-A_AMTTRIV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FCL_STR_AMTPOS-A_AMTLIMAMT_CD_LOW, sy-vline,
  WA_FCL_STR_AMTPOS-A_AMTLIMAMT_CD_UP, sy-vline,
  WA_FCL_STR_AMTPOS-A_AMTLIMAMT_LOW, sy-vline,
  WA_FCL_STR_AMTPOS-A_AMTLIMAMT_UP, sy-vline,
  WA_FCL_STR_AMTPOS-N_COUNTLIM_LOW, sy-vline,
  WA_FCL_STR_AMTPOS-N_COUNTLIM_UP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FCL_STR_AMTPOS 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_FCL_STR_AMTPOS 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_FCL_STR_AMTPOS INTO WA_FCL_STR_AMTPOS.


*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_FCL_STR_AMTPOS_STR, 
O_IRUNIT TYPE STRING,
A_AMT TYPE STRING,
A_AMTMIN TYPE STRING,
A_AMTMAX TYPE STRING,
A_AMTTRIV TYPE STRING,
A_AMTLIMAMT_CD_LOW TYPE STRING,
A_AMTLIMAMT_CD_UP TYPE STRING,
A_AMTLIMAMT_LOW TYPE STRING,
A_AMTLIMAMT_UP TYPE STRING,
N_COUNTLIM_LOW TYPE STRING,
N_COUNTLIM_UP TYPE STRING,
N_DIVISOR TYPE STRING,
I_FORMULA TYPE STRING,
F_FORMULA_APPL TYPE STRING,
A_ADDAMT TYPE STRING,
A_ADDAMTLIM TYPE STRING,
N_FX_RATE TYPE STRING,
O_AMTLIM_REF TYPE STRING,
C_AMT_POST TYPE STRING,
O_WAIVETOFROM TYPE STRING,
O_WAIVEPRD TYPE STRING,
O_REF_EV_FORMULA TYPE STRING,
O_PERCDAY TYPE STRING,
N_FREECOUNT_POS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FCL_STR_AMTPOS_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_FCL_STR_AMTPOS_STR-O_IRUNIT sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMT sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTMIN sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTMAX sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTTRIV sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTLIMAMT_CD_LOW sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTLIMAMT_CD_UP sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTLIMAMT_LOW sy-vline 
WA_FCL_STR_AMTPOS_STR-A_AMTLIMAMT_UP sy-vline 
WA_FCL_STR_AMTPOS_STR-N_COUNTLIM_LOW sy-vline 
WA_FCL_STR_AMTPOS_STR-N_COUNTLIM_UP sy-vline 
WA_FCL_STR_AMTPOS_STR-N_DIVISOR sy-vline 
WA_FCL_STR_AMTPOS_STR-I_FORMULA sy-vline 
WA_FCL_STR_AMTPOS_STR-F_FORMULA_APPL sy-vline 
WA_FCL_STR_AMTPOS_STR-A_ADDAMT sy-vline 
WA_FCL_STR_AMTPOS_STR-A_ADDAMTLIM sy-vline 
WA_FCL_STR_AMTPOS_STR-N_FX_RATE sy-vline 
WA_FCL_STR_AMTPOS_STR-O_AMTLIM_REF sy-vline 
WA_FCL_STR_AMTPOS_STR-C_AMT_POST sy-vline 
WA_FCL_STR_AMTPOS_STR-O_WAIVETOFROM sy-vline 
WA_FCL_STR_AMTPOS_STR-O_WAIVEPRD sy-vline 
WA_FCL_STR_AMTPOS_STR-O_REF_EV_FORMULA sy-vline 
WA_FCL_STR_AMTPOS_STR-O_PERCDAY sy-vline 
WA_FCL_STR_AMTPOS_STR-N_FREECOUNT_POS sy-vline      INTO ld_text SEPARATED BY SPACE.

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