ABAP Select data from SAP table FMPERIOBTR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMPERIOBTR
*  INTO TABLE @DATA(IT_FMPERIOBTR2).
*--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_FMPERIOBTR INDEX 1 INTO DATA(WA_FMPERIOBTR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMPERIOBTR>-P01 = 1.
<FMPERIOBTR>-P02 = 1.
<FMPERIOBTR>-P03 = 1.
<FMPERIOBTR>-P04 = 1.
<FMPERIOBTR>-P05 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMPERIOBTR-P06, sy-vline,
  WA_FMPERIOBTR-P07, sy-vline,
  WA_FMPERIOBTR-P08, sy-vline,
  WA_FMPERIOBTR-P09, sy-vline,
  WA_FMPERIOBTR-P10, sy-vline,
  WA_FMPERIOBTR-P11, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMPERIOBTR 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_FMPERIOBTR 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_FMPERIOBTR INTO WA_FMPERIOBTR.


*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_FMPERIOBTR_STR, 
P01 TYPE STRING,
P02 TYPE STRING,
P03 TYPE STRING,
P04 TYPE STRING,
P05 TYPE STRING,
P06 TYPE STRING,
P07 TYPE STRING,
P08 TYPE STRING,
P09 TYPE STRING,
P10 TYPE STRING,
P11 TYPE STRING,
P12 TYPE STRING,
P13 TYPE STRING,
P14 TYPE STRING,
P15 TYPE STRING,
P16 TYPE STRING,
PVT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMPERIOBTR_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_FMPERIOBTR_STR-P01 sy-vline 
WA_FMPERIOBTR_STR-P02 sy-vline 
WA_FMPERIOBTR_STR-P03 sy-vline 
WA_FMPERIOBTR_STR-P04 sy-vline 
WA_FMPERIOBTR_STR-P05 sy-vline 
WA_FMPERIOBTR_STR-P06 sy-vline 
WA_FMPERIOBTR_STR-P07 sy-vline 
WA_FMPERIOBTR_STR-P08 sy-vline 
WA_FMPERIOBTR_STR-P09 sy-vline 
WA_FMPERIOBTR_STR-P10 sy-vline 
WA_FMPERIOBTR_STR-P11 sy-vline 
WA_FMPERIOBTR_STR-P12 sy-vline 
WA_FMPERIOBTR_STR-P13 sy-vline 
WA_FMPERIOBTR_STR-P14 sy-vline 
WA_FMPERIOBTR_STR-P15 sy-vline 
WA_FMPERIOBTR_STR-P16 sy-vline 
WA_FMPERIOBTR_STR-PVT sy-vline      INTO ld_text SEPARATED BY SPACE.

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