ABAP Select data from SAP table /ISDFPS/FORCER_MIG_MNT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISDFPS/FORCER_MIG_MNT 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 /ISDFPS/FORCER_MIG_MNT. 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 /ISDFPS/FORCER_MIG_MNT 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_/ISDFPS/FORCER_MIG_MNT TYPE STANDARD TABLE OF /ISDFPS/FORCER_MIG_MNT,
      WA_/ISDFPS/FORCER_MIG_MNT TYPE /ISDFPS/FORCER_MIG_MNT,
      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: </ISDFPS/FORCER_MIG_MNT> TYPE /ISDFPS/FORCER_MIG_MNT.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISDFPS/FORCER_MIG_MNT
  INTO TABLE IT_/ISDFPS/FORCER_MIG_MNT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/FORCER_MIG_MNT
*  INTO TABLE @DATA(IT_/ISDFPS/FORCER_MIG_MNT2).
*--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_/ISDFPS/FORCER_MIG_MNT INDEX 1 INTO DATA(WA_/ISDFPS/FORCER_MIG_MNT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISDFPS/FORCER_MIG_MNT ASSIGNING </ISDFPS/FORCER_MIG_MNT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/FORCER_MIG_MNT>-OBJID2 = 1.
</ISDFPS/FORCER_MIG_MNT>-OBJID = 1.
</ISDFPS/FORCER_MIG_MNT>-OTYPE = 1.
</ISDFPS/FORCER_MIG_MNT>-PLVAR = 1.
</ISDFPS/FORCER_MIG_MNT>-STEXT = 1.

ENDLOOP.

LOOP AT IT_/ISDFPS/FORCER_MIG_MNT INTO WA_/ISDFPS/FORCER_MIG_MNT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/FORCER_MIG_MNT-PVS_GUID, sy-vline,
  WA_/ISDFPS/FORCER_MIG_MNT-FORCE_ID, sy-vline,
  WA_/ISDFPS/FORCER_MIG_MNT-RSIGN, sy-vline,
  WA_/ISDFPS/FORCER_MIG_MNT-FORCE_CNT, sy-vline,
  WA_/ISDFPS/FORCER_MIG_MNT-MANDT, sy-vline,
  WA_/ISDFPS/FORCER_MIG_MNT-FRGUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/FORCER_MIG_MNT 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_/ISDFPS/FORCER_MIG_MNT 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_/ISDFPS/FORCER_MIG_MNT INTO WA_/ISDFPS/FORCER_MIG_MNT.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/FORCER_MIG_MNT-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/FORCER_MIG_MNT-LOGSYS.
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_/ISDFPS/FORCER_MIG_MNT_STR, 
OBJID2 TYPE STRING,
OBJID TYPE STRING,
OTYPE TYPE STRING,
PLVAR TYPE STRING,
STEXT TYPE STRING,
PVS_GUID TYPE STRING,
FORCE_ID TYPE STRING,
RSIGN TYPE STRING,
FORCE_CNT TYPE STRING,
MANDT TYPE STRING,
FRGUID TYPE STRING,
FRCNT TYPE STRING,
BEGDA TYPE STRING,
VALID_FROM TYPE STRING,
ENDDA TYPE STRING,
VALID_TO TYPE STRING,
VALID_TIMEZONE TYPE STRING,
ORIGIN_TIMEZONE TYPE STRING,
ISTAT TYPE STRING,
DGUID TYPE STRING,
TIMSTMP TYPE STRING,
CREADAT TYPE STRING,
CREABY TYPE STRING,
CHNGDAT TYPE STRING,
CHNGBY TYPE STRING,
LOGSYS TYPE STRING,
RELAT TYPE STRING,
PRIOX TYPE STRING,
DEFAULT_REL TYPE STRING,
WFLOWDAT TYPE STRING,
WFLOWZT TYPE STRING,
WFLOWZZ TYPE STRING,
DAMAGE_KIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/FORCER_MIG_MNT_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_/ISDFPS/FORCER_MIG_MNT_STR-OBJID2 sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-OBJID sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-OTYPE sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-PLVAR sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-STEXT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-PVS_GUID sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-FORCE_ID sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-RSIGN sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-FORCE_CNT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-MANDT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-FRGUID sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-FRCNT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-BEGDA sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-VALID_FROM sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-ENDDA sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-VALID_TO sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-VALID_TIMEZONE sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-ORIGIN_TIMEZONE sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-ISTAT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-DGUID sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-TIMSTMP sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-CREADAT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-CREABY sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-CHNGDAT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-CHNGBY sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-LOGSYS sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-RELAT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-PRIOX sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-DEFAULT_REL sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-WFLOWDAT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-WFLOWZT sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-WFLOWZZ sy-vline 
WA_/ISDFPS/FORCER_MIG_MNT_STR-DAMAGE_KIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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