ABAP Select data from SAP table DMEE_MCSH_IF_TYPE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DMEE_MCSH_IF_TYPE
*  INTO TABLE @DATA(IT_DMEE_MCSH_IF_TYPE2).
*--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_DMEE_MCSH_IF_TYPE INDEX 1 INTO DATA(WA_DMEE_MCSH_IF_TYPE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DMEE_MCSH_IF_TYPE>-DMEE_MCSH_UMSATZ = 1.
<DMEE_MCSH_IF_TYPE>-BANKY = 1.
<DMEE_MCSH_IF_TYPE>-KTONR = 1.
<DMEE_MCSH_IF_TYPE>-AZNUM = 1.
<DMEE_MCSH_IF_TYPE>-VALUT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DMEE_MCSH_IF_TYPE-PRIMA, sy-vline,
  WA_DMEE_MCSH_IF_TYPE-VWZ01, sy-vline,
  WA_DMEE_MCSH_IF_TYPE-BUTXT, sy-vline,
  WA_DMEE_MCSH_IF_TYPE-UZEIT, sy-vline,
  WA_DMEE_MCSH_IF_TYPE-TSCHL, sy-vline,
  WA_DMEE_MCSH_IF_TYPE-SCHNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DMEE_MCSH_IF_TYPE 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_DMEE_MCSH_IF_TYPE 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_DMEE_MCSH_IF_TYPE INTO WA_DMEE_MCSH_IF_TYPE.


*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_DMEE_MCSH_IF_TYPE_STR, 
DMEE_MCSH_UMSATZ TYPE STRING,
BANKY TYPE STRING,
KTONR TYPE STRING,
AZNUM TYPE STRING,
VALUT TYPE STRING,
PRIMA TYPE STRING,
VWZ01 TYPE STRING,
BUTXT TYPE STRING,
UZEIT TYPE STRING,
TSCHL TYPE STRING,
SCHNR TYPE STRING,
WRBTR TYPE STRING,
SAMPO TYPE STRING,
FOLGS TYPE STRING,
BUDAT TYPE STRING,
ZINF1 TYPE STRING,
ZINF2 TYPE STRING,
VWZ02 TYPE STRING,
VWZ03 TYPE STRING,
VWZ04 TYPE STRING,
VWZ05 TYPE STRING,
VWZ06 TYPE STRING,
VWZ07 TYPE STRING,
VWZ08 TYPE STRING,
VWZ09 TYPE STRING,
VWZ10 TYPE STRING,
VWZ11 TYPE STRING,
VWZ12 TYPE STRING,
VWZ13 TYPE STRING,
VWZ14 TYPE STRING,
AUFG1 TYPE STRING,
AUFG2 TYPE STRING,
AGBNK TYPE STRING,
AGKTO TYPE STRING,
GCODE TYPE STRING,
STORN TYPE STRING,
FWAER TYPE STRING,
FWBTR TYPE STRING,
DMEE_RELNUM TYPE STRING,
DMEE_MCSH_AUSZUG TYPE STRING,
BANKY TYPE STRING,
KTONR TYPE STRING,
AZNUM TYPE STRING,
AZDAT TYPE STRING,
WAERS TYPE STRING,
SSALD TYPE STRING,
SUMSO TYPE STRING,
SUMHA TYPE STRING,
ESALD TYPE STRING,
INHAB TYPE STRING,
KTOBZ TYPE STRING,
BLAUF TYPE STRING,
ELAUF TYPE STRING,
HZINS TYPE STRING,
KOART TYPE STRING,
KTOKL TYPE STRING,
UPDAT TYPE STRING,
ANZUM TYPE STRING,
DMEE_RELNUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DMEE_MCSH_IF_TYPE_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_DMEE_MCSH_IF_TYPE_STR-DMEE_MCSH_UMSATZ sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-BANKY sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-KTONR sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AZNUM sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VALUT sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-PRIMA sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ01 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-BUTXT sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-UZEIT sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-TSCHL sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-SCHNR sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-WRBTR sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-SAMPO sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-FOLGS sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-BUDAT sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-ZINF1 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-ZINF2 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ02 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ03 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ04 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ05 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ06 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ07 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ08 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ09 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ10 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ11 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ12 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ13 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-VWZ14 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AUFG1 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AUFG2 sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AGBNK sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AGKTO sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-GCODE sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-STORN sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-FWAER sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-FWBTR sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-DMEE_RELNUM sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-DMEE_MCSH_AUSZUG sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-BANKY sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-KTONR sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AZNUM sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-AZDAT sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-WAERS sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-SSALD sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-SUMSO sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-SUMHA sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-ESALD sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-INHAB sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-KTOBZ sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-BLAUF sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-ELAUF sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-HZINS sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-KOART sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-KTOKL sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-UPDAT sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-ANZUM sy-vline 
WA_DMEE_MCSH_IF_TYPE_STR-DMEE_RELNUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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