ABAP Select data from SAP table MDC_DETAILS_BPR_MTC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MDC_DETAILS_BPR_MTC 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_DETAILS_BPR_MTC. 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_DETAILS_BPR_MTC 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_DETAILS_BPR_MTC TYPE STANDARD TABLE OF MDC_DETAILS_BPR_MTC,
      WA_MDC_DETAILS_BPR_MTC TYPE MDC_DETAILS_BPR_MTC,
      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_DETAILS_BPR_MTC> TYPE MDC_DETAILS_BPR_MTC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDC_DETAILS_BPR_MTC
*  INTO TABLE @DATA(IT_MDC_DETAILS_BPR_MTC2).
*--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_DETAILS_BPR_MTC INDEX 1 INTO DATA(WA_MDC_DETAILS_BPR_MTC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDC_DETAILS_BPR_MTC>-PROCESS_ID = 1.
<MDC_DETAILS_BPR_MTC>-PROCESS_STEP_NO = 1.
<MDC_DETAILS_BPR_MTC>-SOURCE_SYSTEM = 1.
<MDC_DETAILS_BPR_MTC>-SOURCE_ID = 1.
<MDC_DETAILS_BPR_MTC>-FILTER_STRING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDC_DETAILS_BPR_MTC-MATCH_GROUP_ID, sy-vline,
  WA_MDC_DETAILS_BPR_MTC-BEST_RECORD, sy-vline,
  WA_MDC_DETAILS_BPR_MTC-APPROVAL_STATUS, sy-vline,
  WA_MDC_DETAILS_BPR_MTC-APPROVER, sy-vline,
  WA_MDC_DETAILS_BPR_MTC-APPROVED_AT, sy-vline,
  WA_MDC_DETAILS_BPR_MTC-STATUS_EDITABLE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDC_DETAILS_BPR_MTC 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_DETAILS_BPR_MTC 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_DETAILS_BPR_MTC INTO WA_MDC_DETAILS_BPR_MTC.


*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 PARTNER1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MDC_DETAILS_BPR_MTC-PARTNER1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDC_DETAILS_BPR_MTC-PARTNER1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MDC_DETAILS_BPR_MTC-PARTNER2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDC_DETAILS_BPR_MTC-PARTNER2.
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_MDC_DETAILS_BPR_MTC_STR, 
PROCESS_ID TYPE STRING,
PROCESS_STEP_NO TYPE STRING,
SOURCE_SYSTEM TYPE STRING,
SOURCE_ID TYPE STRING,
FILTER_STRING TYPE STRING,
MATCH_GROUP_ID TYPE STRING,
BEST_RECORD TYPE STRING,
APPROVAL_STATUS TYPE STRING,
APPROVER TYPE STRING,
APPROVED_AT TYPE STRING,
STATUS_EDITABLE TYPE STRING,
GROUP_SIZE TYPE STRING,
GROUP_STATUS TYPE STRING,
MATCH_SCORE TYPE STRING,
MATCH_SCORE_INT TYPE STRING,
MATCH_RULE TYPE STRING,
APPROVAL_STATUS_FIXED TYPE STRING,
ORIGINAL_MATCH_GROUP_ID TYPE STRING,
PREVIOUS_DECISION TYPE STRING,
PREVIOUS_PROCESS_ID TYPE STRING,
PREVIOUS_MATCH_GROUP_ID TYPE STRING,
PREVIOUS_GROUP TYPE STRING,
MATCH_DECISION TYPE STRING,
PARTNER1 TYPE STRING,
PARTNER2 TYPE STRING,
RELTYP TYPE STRING,
RTITL TYPE STRING,
TYPE_1 TYPE STRING,
BPKIND_1 TYPE STRING,
NAME1_1 TYPE STRING,
NAME2_1 TYPE STRING,
BU_SORT1_1 TYPE STRING,
BU_SORT2_1 TYPE STRING,
AUGRP_1 TYPE STRING,
TYPE_2 TYPE STRING,
BPKIND_2 TYPE STRING,
NAME1_2 TYPE STRING,
NAME2_2 TYPE STRING,
BU_SORT1_2 TYPE STRING,
BU_SORT2_2 TYPE STRING,
AUGRP_2 TYPE STRING,
SOURCE_PARTNER1 TYPE STRING,
SOURCE_PARTNER2 TYPE STRING,
RTITL_BP1BP2 TYPE STRING,
DESCRIPTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDC_DETAILS_BPR_MTC_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_DETAILS_BPR_MTC_STR-PROCESS_ID sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PROCESS_STEP_NO sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-SOURCE_SYSTEM sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-SOURCE_ID sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-FILTER_STRING sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-MATCH_GROUP_ID sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BEST_RECORD sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-APPROVAL_STATUS sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-APPROVER sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-APPROVED_AT sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-STATUS_EDITABLE sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-GROUP_SIZE sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-GROUP_STATUS sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-MATCH_SCORE sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-MATCH_SCORE_INT sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-MATCH_RULE sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-APPROVAL_STATUS_FIXED sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-ORIGINAL_MATCH_GROUP_ID sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PREVIOUS_DECISION sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PREVIOUS_PROCESS_ID sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PREVIOUS_MATCH_GROUP_ID sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PREVIOUS_GROUP sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-MATCH_DECISION sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PARTNER1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-PARTNER2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-RELTYP sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-RTITL sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-TYPE_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BPKIND_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-NAME1_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-NAME2_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BU_SORT1_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BU_SORT2_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-AUGRP_1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-TYPE_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BPKIND_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-NAME1_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-NAME2_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BU_SORT1_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-BU_SORT2_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-AUGRP_2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-SOURCE_PARTNER1 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-SOURCE_PARTNER2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-RTITL_BP1BP2 sy-vline 
WA_MDC_DETAILS_BPR_MTC_STR-DESCRIPTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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