ABAP Select data from SAP table FMMIMDOCFLOW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMMIMDOCFLOW
*  INTO TABLE @DATA(IT_FMMIMDOCFLOW2).
*--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_FMMIMDOCFLOW INDEX 1 INTO DATA(WA_FMMIMDOCFLOW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMMIMDOCFLOW>-MANDT = 1.
<FMMIMDOCFLOW>-MATERIALDOCUMENT = 1.
<FMMIMDOCFLOW>-MATERIALDOCUMENTYEAR = 1.
<FMMIMDOCFLOW>-MATERIALDOCUMENTITEM = 1.
<FMMIMDOCFLOW>-ITEMCATEGORYGROUP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMMIMDOCFLOW-ITEMCATEGORY, sy-vline,
  WA_FMMIMDOCFLOW-REFERENCEDOCUMENT, sy-vline,
  WA_FMMIMDOCFLOW-REFERENCEDOCUMENTITEM, sy-vline,
  WA_FMMIMDOCFLOW-COMPANYCODE, sy-vline,
  WA_FMMIMDOCFLOW-DOCUMENTYEAR, sy-vline,
  WA_FMMIMDOCFLOW-GOODSMOVEMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMMIMDOCFLOW 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_FMMIMDOCFLOW 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_FMMIMDOCFLOW INTO WA_FMMIMDOCFLOW.


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

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

*Conversion exit GJAHR, internal->external for field DOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMMIMDOCFLOW-DOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMMIMDOCFLOW-DOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field REVERSEDMATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FMMIMDOCFLOW-REVERSEDMATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMMIMDOCFLOW-REVERSEDMATERIALDOCUMENTYEAR.
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_FMMIMDOCFLOW_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
ITEMCATEGORYGROUP TYPE STRING,
ITEMCATEGORY TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTITEM TYPE STRING,
COMPANYCODE TYPE STRING,
DOCUMENTYEAR TYPE STRING,
GOODSMOVEMENTTYPE TYPE STRING,
INVENTORYSPECIALSTOCKTYPE TYPE STRING,
GOODMOVEMENTREFDOCTYPE TYPE STRING,
ORDERTYPE TYPE STRING,
CONSUMPTIONPOSTING TYPE STRING,
REVERSEDMATERIALDOCUMENT TYPE STRING,
REVERSEDMATERIALDOCUMENTYEAR TYPE STRING,
REVERSEDMATERIALDOCUMENTITEM TYPE STRING,
GOODSMOVEMENTTYPELONGNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMMIMDOCFLOW_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_FMMIMDOCFLOW_STR-MANDT sy-vline 
WA_FMMIMDOCFLOW_STR-MATERIALDOCUMENT sy-vline 
WA_FMMIMDOCFLOW_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_FMMIMDOCFLOW_STR-MATERIALDOCUMENTITEM sy-vline 
WA_FMMIMDOCFLOW_STR-ITEMCATEGORYGROUP sy-vline 
WA_FMMIMDOCFLOW_STR-ITEMCATEGORY sy-vline 
WA_FMMIMDOCFLOW_STR-REFERENCEDOCUMENT sy-vline 
WA_FMMIMDOCFLOW_STR-REFERENCEDOCUMENTITEM sy-vline 
WA_FMMIMDOCFLOW_STR-COMPANYCODE sy-vline 
WA_FMMIMDOCFLOW_STR-DOCUMENTYEAR sy-vline 
WA_FMMIMDOCFLOW_STR-GOODSMOVEMENTTYPE sy-vline 
WA_FMMIMDOCFLOW_STR-INVENTORYSPECIALSTOCKTYPE sy-vline 
WA_FMMIMDOCFLOW_STR-GOODMOVEMENTREFDOCTYPE sy-vline 
WA_FMMIMDOCFLOW_STR-ORDERTYPE sy-vline 
WA_FMMIMDOCFLOW_STR-CONSUMPTIONPOSTING sy-vline 
WA_FMMIMDOCFLOW_STR-REVERSEDMATERIALDOCUMENT sy-vline 
WA_FMMIMDOCFLOW_STR-REVERSEDMATERIALDOCUMENTYEAR sy-vline 
WA_FMMIMDOCFLOW_STR-REVERSEDMATERIALDOCUMENTITEM sy-vline 
WA_FMMIMDOCFLOW_STR-GOODSMOVEMENTTYPELONGNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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