ABAP Select data from SAP table MDC_SETUP_MTCIM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDC_SETUP_MTCIM
*  INTO TABLE @DATA(IT_MDC_SETUP_MTCIM2).
*--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_MDC_SETUP_MTCIM INDEX 1 INTO DATA(WA_MDC_SETUP_MTCIM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDC_SETUP_MTCIM>-SETUP_ID = 1.
<MDC_SETUP_MTCIM>-PARALLEL_PROCS = 1.
<MDC_SETUP_MTCIM>-QUEUE_PREFIX = 1.
<MDC_SETUP_MTCIM>-MTCIMA = 1.
<MDC_SETUP_MTCIM>-THRESHOLD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDC_SETUP_MTCIM-MISSINGSECDATA, sy-vline,
  WA_MDC_SETUP_MTCIM-MISSINGSTRTYPE, sy-vline,
  WA_MDC_SETUP_MTCIM-DIFFSTRTYPES, sy-vline,
  WA_MDC_SETUP_MTCIM-MISSINGDIRCTNL, sy-vline,
  WA_MDC_SETUP_MTCIM-DIFFERENTDIRCTNL, sy-vline,
  WA_MDC_SETUP_MTCIM-TYPEMATCHING, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDC_SETUP_MTCIM 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_MDC_SETUP_MTCIM 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_MDC_SETUP_MTCIM INTO WA_MDC_SETUP_MTCIM.


*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_MDC_SETUP_MTCIM_STR, 
SETUP_ID TYPE STRING,
PARALLEL_PROCS TYPE STRING,
QUEUE_PREFIX TYPE STRING,
MTCIMA TYPE STRING,
THRESHOLD TYPE STRING,
MISSINGSECDATA TYPE STRING,
MISSINGSTRTYPE TYPE STRING,
DIFFSTRTYPES TYPE STRING,
MISSINGDIRCTNL TYPE STRING,
DIFFERENTDIRCTNL TYPE STRING,
TYPEMATCHING TYPE STRING,
ID_MODE TYPE STRING,
ID_COUNTRY TYPE STRING,
MTCIMC TYPE STRING,
MTCIMF TYPE STRING,
THRESHOLD TYPE STRING,
FIRMINITIALS TYPE STRING,
SHORTENFIRMNAMES TYPE STRING,
ABBREVIATEDWORDS TYPE STRING,
NUMBERS TYPE STRING,
TYPEMATCHING TYPE STRING,
DOMAIN_CLEANSE TYPE STRING,
MTCIMP TYPE STRING,
THRESHOLD TYPE STRING,
FIRSTNAMEINITIAL TYPE STRING,
CMPNDFIRSTNAMES TYPE STRING,
FIRSTTOMIDNAMES TYPE STRING,
NAMEVARIATIONS TYPE STRING,
LASTNAMEINITIAL TYPE STRING,
CMPNDLASTNAMES TYPE STRING,
MISSINGPOSTNAME TYPE STRING,
TYPEMATCHING TYPE STRING,
DOMAIN_CLEANSE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDC_SETUP_MTCIM_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_MDC_SETUP_MTCIM_STR-SETUP_ID sy-vline 
WA_MDC_SETUP_MTCIM_STR-PARALLEL_PROCS sy-vline 
WA_MDC_SETUP_MTCIM_STR-QUEUE_PREFIX sy-vline 
WA_MDC_SETUP_MTCIM_STR-MTCIMA sy-vline 
WA_MDC_SETUP_MTCIM_STR-THRESHOLD sy-vline 
WA_MDC_SETUP_MTCIM_STR-MISSINGSECDATA sy-vline 
WA_MDC_SETUP_MTCIM_STR-MISSINGSTRTYPE sy-vline 
WA_MDC_SETUP_MTCIM_STR-DIFFSTRTYPES sy-vline 
WA_MDC_SETUP_MTCIM_STR-MISSINGDIRCTNL sy-vline 
WA_MDC_SETUP_MTCIM_STR-DIFFERENTDIRCTNL sy-vline 
WA_MDC_SETUP_MTCIM_STR-TYPEMATCHING sy-vline 
WA_MDC_SETUP_MTCIM_STR-ID_MODE sy-vline 
WA_MDC_SETUP_MTCIM_STR-ID_COUNTRY sy-vline 
WA_MDC_SETUP_MTCIM_STR-MTCIMC sy-vline 
WA_MDC_SETUP_MTCIM_STR-MTCIMF sy-vline 
WA_MDC_SETUP_MTCIM_STR-THRESHOLD sy-vline 
WA_MDC_SETUP_MTCIM_STR-FIRMINITIALS sy-vline 
WA_MDC_SETUP_MTCIM_STR-SHORTENFIRMNAMES sy-vline 
WA_MDC_SETUP_MTCIM_STR-ABBREVIATEDWORDS sy-vline 
WA_MDC_SETUP_MTCIM_STR-NUMBERS sy-vline 
WA_MDC_SETUP_MTCIM_STR-TYPEMATCHING sy-vline 
WA_MDC_SETUP_MTCIM_STR-DOMAIN_CLEANSE sy-vline 
WA_MDC_SETUP_MTCIM_STR-MTCIMP sy-vline 
WA_MDC_SETUP_MTCIM_STR-THRESHOLD sy-vline 
WA_MDC_SETUP_MTCIM_STR-FIRSTNAMEINITIAL sy-vline 
WA_MDC_SETUP_MTCIM_STR-CMPNDFIRSTNAMES sy-vline 
WA_MDC_SETUP_MTCIM_STR-FIRSTTOMIDNAMES sy-vline 
WA_MDC_SETUP_MTCIM_STR-NAMEVARIATIONS sy-vline 
WA_MDC_SETUP_MTCIM_STR-LASTNAMEINITIAL sy-vline 
WA_MDC_SETUP_MTCIM_STR-CMPNDLASTNAMES sy-vline 
WA_MDC_SETUP_MTCIM_STR-MISSINGPOSTNAME sy-vline 
WA_MDC_SETUP_MTCIM_STR-TYPEMATCHING sy-vline 
WA_MDC_SETUP_MTCIM_STR-DOMAIN_CLEANSE sy-vline      INTO ld_text SEPARATED BY SPACE.

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