ABAP Select data from SAP table MSIT_MTYSYNC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSIT_MTYSYNC
*  INTO TABLE @DATA(IT_MSIT_MTYSYNC2).
*--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_MSIT_MTYSYNC INDEX 1 INTO DATA(WA_MSIT_MTYSYNC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSIT_MTYSYNC>-MTY_BASIC = 1.
<MSIT_MTYSYNC>-DATA = 1.
<MSIT_MTYSYNC>-MANDT = 1.
<MSIT_MTYSYNC>-MTART = 1.
<MSIT_MTYSYNC>-MTREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSIT_MTYSYNC-MBREF, sy-vline,
  WA_MSIT_MTYSYNC-FLREF, sy-vline,
  WA_MSIT_MTYSYNC-NUMKI, sy-vline,
  WA_MSIT_MTYSYNC-NUMKE, sy-vline,
  WA_MSIT_MTYSYNC-ENVOP, sy-vline,
  WA_MSIT_MTYSYNC-BSEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSIT_MTYSYNC 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_MSIT_MTYSYNC 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_MSIT_MTYSYNC INTO WA_MSIT_MTYSYNC.


*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_MSIT_MTYSYNC_STR, 
MTY_BASIC TYPE STRING,
DATA TYPE STRING,
MANDT TYPE STRING,
MTART TYPE STRING,
MTREF TYPE STRING,
MBREF TYPE STRING,
FLREF TYPE STRING,
NUMKI TYPE STRING,
NUMKE TYPE STRING,
ENVOP TYPE STRING,
BSEXT TYPE STRING,
BSINT TYPE STRING,
PSTAT TYPE STRING,
KKREF TYPE STRING,
VPRSV TYPE STRING,
KZVPR TYPE STRING,
VMTPO TYPE STRING,
EKALR TYPE STRING,
KZGRP TYPE STRING,
KZKFG TYPE STRING,
BEGRU TYPE STRING,
KZPRC TYPE STRING,
KZPIP TYPE STRING,
PRDRU TYPE STRING,
ARANZ TYPE STRING,
WMAKG TYPE STRING,
IZUST TYPE STRING,
ARDEL TYPE STRING,
KZMPN TYPE STRING,
MSTAE TYPE STRING,
CCHIS TYPE STRING,
CTYPE TYPE STRING,
CLASS TYPE STRING,
CHNEU TYPE STRING,
PROD_TYPE_CODE TYPE STRING,
CONCTD_MATNR TYPE STRING,
VTYPE TYPE STRING,
VNUMKI TYPE STRING,
VNUMKE TYPE STRING,
KZFFF TYPE STRING,
KZRAC TYPE STRING,
UPDATE_TYPE TYPE STRING,
MTY_SHORTTXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSIT_MTYSYNC_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_MSIT_MTYSYNC_STR-MTY_BASIC sy-vline 
WA_MSIT_MTYSYNC_STR-DATA sy-vline 
WA_MSIT_MTYSYNC_STR-MANDT sy-vline 
WA_MSIT_MTYSYNC_STR-MTART sy-vline 
WA_MSIT_MTYSYNC_STR-MTREF sy-vline 
WA_MSIT_MTYSYNC_STR-MBREF sy-vline 
WA_MSIT_MTYSYNC_STR-FLREF sy-vline 
WA_MSIT_MTYSYNC_STR-NUMKI sy-vline 
WA_MSIT_MTYSYNC_STR-NUMKE sy-vline 
WA_MSIT_MTYSYNC_STR-ENVOP sy-vline 
WA_MSIT_MTYSYNC_STR-BSEXT sy-vline 
WA_MSIT_MTYSYNC_STR-BSINT sy-vline 
WA_MSIT_MTYSYNC_STR-PSTAT sy-vline 
WA_MSIT_MTYSYNC_STR-KKREF sy-vline 
WA_MSIT_MTYSYNC_STR-VPRSV sy-vline 
WA_MSIT_MTYSYNC_STR-KZVPR sy-vline 
WA_MSIT_MTYSYNC_STR-VMTPO sy-vline 
WA_MSIT_MTYSYNC_STR-EKALR sy-vline 
WA_MSIT_MTYSYNC_STR-KZGRP sy-vline 
WA_MSIT_MTYSYNC_STR-KZKFG sy-vline 
WA_MSIT_MTYSYNC_STR-BEGRU sy-vline 
WA_MSIT_MTYSYNC_STR-KZPRC sy-vline 
WA_MSIT_MTYSYNC_STR-KZPIP sy-vline 
WA_MSIT_MTYSYNC_STR-PRDRU sy-vline 
WA_MSIT_MTYSYNC_STR-ARANZ sy-vline 
WA_MSIT_MTYSYNC_STR-WMAKG sy-vline 
WA_MSIT_MTYSYNC_STR-IZUST sy-vline 
WA_MSIT_MTYSYNC_STR-ARDEL sy-vline 
WA_MSIT_MTYSYNC_STR-KZMPN sy-vline 
WA_MSIT_MTYSYNC_STR-MSTAE sy-vline 
WA_MSIT_MTYSYNC_STR-CCHIS sy-vline 
WA_MSIT_MTYSYNC_STR-CTYPE sy-vline 
WA_MSIT_MTYSYNC_STR-CLASS sy-vline 
WA_MSIT_MTYSYNC_STR-CHNEU sy-vline 
WA_MSIT_MTYSYNC_STR-PROD_TYPE_CODE sy-vline 
WA_MSIT_MTYSYNC_STR-CONCTD_MATNR sy-vline 
WA_MSIT_MTYSYNC_STR-VTYPE sy-vline 
WA_MSIT_MTYSYNC_STR-VNUMKI sy-vline 
WA_MSIT_MTYSYNC_STR-VNUMKE sy-vline 
WA_MSIT_MTYSYNC_STR-KZFFF sy-vline 
WA_MSIT_MTYSYNC_STR-KZRAC sy-vline 
WA_MSIT_MTYSYNC_STR-UPDATE_TYPE sy-vline 
WA_MSIT_MTYSYNC_STR-MTY_SHORTTXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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