ABAP Select data from SAP table FMAPSTAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMAPSTAT
*  INTO TABLE @DATA(IT_FMAPSTAT2).
*--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_FMAPSTAT INDEX 1 INTO DATA(WA_FMAPSTAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMAPSTAT>-MANDT = 1.
<FMAPSTAT>-FIKRS = 1.
<FMAPSTAT>-HIVERS = 1.
<FMAPSTAT>-GJAHR = 1.
<FMAPSTAT>-CTR_OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMAPSTAT-POSIT, sy-vline,
  WA_FMAPSTAT-GEBER, sy-vline,
  WA_FMAPSTAT-DATBIS, sy-vline,
  WA_FMAPSTAT-STSMA, sy-vline,
  WA_FMAPSTAT-DATAB, sy-vline,
  WA_FMAPSTAT-ISTAT1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMAPSTAT 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_FMAPSTAT 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_FMAPSTAT INTO WA_FMAPSTAT.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMAPSTAT-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMAPSTAT-GJAHR.
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_FMAPSTAT_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
HIVERS TYPE STRING,
GJAHR TYPE STRING,
CTR_OBJNR TYPE STRING,
POSIT TYPE STRING,
GEBER TYPE STRING,
DATBIS TYPE STRING,
STSMA TYPE STRING,
DATAB TYPE STRING,
ISTAT1 TYPE STRING,
ISTAT2 TYPE STRING,
ISTAT3 TYPE STRING,
ISTAT4 TYPE STRING,
ISTAT5 TYPE STRING,
ESTAT1 TYPE STRING,
ESTAT2 TYPE STRING,
ESTAT3 TYPE STRING,
ESTAT4 TYPE STRING,
ESTAT5 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMAPSTAT_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_FMAPSTAT_STR-MANDT sy-vline 
WA_FMAPSTAT_STR-FIKRS sy-vline 
WA_FMAPSTAT_STR-HIVERS sy-vline 
WA_FMAPSTAT_STR-GJAHR sy-vline 
WA_FMAPSTAT_STR-CTR_OBJNR sy-vline 
WA_FMAPSTAT_STR-POSIT sy-vline 
WA_FMAPSTAT_STR-GEBER sy-vline 
WA_FMAPSTAT_STR-DATBIS sy-vline 
WA_FMAPSTAT_STR-STSMA sy-vline 
WA_FMAPSTAT_STR-DATAB sy-vline 
WA_FMAPSTAT_STR-ISTAT1 sy-vline 
WA_FMAPSTAT_STR-ISTAT2 sy-vline 
WA_FMAPSTAT_STR-ISTAT3 sy-vline 
WA_FMAPSTAT_STR-ISTAT4 sy-vline 
WA_FMAPSTAT_STR-ISTAT5 sy-vline 
WA_FMAPSTAT_STR-ESTAT1 sy-vline 
WA_FMAPSTAT_STR-ESTAT2 sy-vline 
WA_FMAPSTAT_STR-ESTAT3 sy-vline 
WA_FMAPSTAT_STR-ESTAT4 sy-vline 
WA_FMAPSTAT_STR-ESTAT5 sy-vline      INTO ld_text SEPARATED BY SPACE.

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