ABAP Select data from SAP table /ISIDEX/EIDENTMATRIX_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ISIDEX/EIDENTMATRIX_DATA 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 /ISIDEX/EIDENTMATRIX_DATA. 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 /ISIDEX/EIDENTMATRIX_DATA 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_/ISIDEX/EIDENTMATRIX_DATA TYPE STANDARD TABLE OF /ISIDEX/EIDENTMATRIX_DATA,
      WA_/ISIDEX/EIDENTMATRIX_DATA TYPE /ISIDEX/EIDENTMATRIX_DATA,
      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: </ISIDEX/EIDENTMATRIX_DATA> TYPE /ISIDEX/EIDENTMATRIX_DATA.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ISIDEX/EIDENTMATRIX_DATA
  INTO TABLE IT_/ISIDEX/EIDENTMATRIX_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISIDEX/EIDENTMATRIX_DATA
*  INTO TABLE @DATA(IT_/ISIDEX/EIDENTMATRIX_DATA2).
*--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_/ISIDEX/EIDENTMATRIX_DATA INDEX 1 INTO DATA(WA_/ISIDEX/EIDENTMATRIX_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ISIDEX/EIDENTMATRIX_DATA ASSIGNING </ISIDEX/EIDENTMATRIX_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISIDEX/EIDENTMATRIX_DATA>-INT_UI = 1.
</ISIDEX/EIDENTMATRIX_DATA>-EXT_UI = 1.
</ISIDEX/EIDENTMATRIX_DATA>-NAME1 = 1.
</ISIDEX/EIDENTMATRIX_DATA>-NAME2 = 1.
</ISIDEX/EIDENTMATRIX_DATA>-STREET = 1.

ENDLOOP.

LOOP AT IT_/ISIDEX/EIDENTMATRIX_DATA INTO WA_/ISIDEX/EIDENTMATRIX_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISIDEX/EIDENTMATRIX_DATA-HOUSENR, sy-vline,
  WA_/ISIDEX/EIDENTMATRIX_DATA-HOUSENREXT, sy-vline,
  WA_/ISIDEX/EIDENTMATRIX_DATA-POSTCODE, sy-vline,
  WA_/ISIDEX/EIDENTMATRIX_DATA-CITY, sy-vline,
  WA_/ISIDEX/EIDENTMATRIX_DATA-FLOOR, sy-vline,
  WA_/ISIDEX/EIDENTMATRIX_DATA-ROOMNUMBER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISIDEX/EIDENTMATRIX_DATA 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_/ISIDEX/EIDENTMATRIX_DATA 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_/ISIDEX/EIDENTMATRIX_DATA INTO WA_/ISIDEX/EIDENTMATRIX_DATA.


*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 GERNR, internal->external for field METERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_/ISIDEX/EIDENTMATRIX_DATA-METERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISIDEX/EIDENTMATRIX_DATA-METERNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISIDEX/EIDENTMATRIX_DATA-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISIDEX/EIDENTMATRIX_DATA-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field VERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ISIDEX/EIDENTMATRIX_DATA-VERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISIDEX/EIDENTMATRIX_DATA-VERTRAG.
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_/ISIDEX/EIDENTMATRIX_DATA_STR, 
INT_UI TYPE STRING,
EXT_UI TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STREET TYPE STRING,
HOUSENR TYPE STRING,
HOUSENREXT TYPE STRING,
POSTCODE TYPE STRING,
CITY TYPE STRING,
FLOOR TYPE STRING,
ROOMNUMBER TYPE STRING,
METERNR TYPE STRING,
EQUNR TYPE STRING,
MATNR TYPE STRING,
BU_PARTNER TYPE STRING,
BU_AUGRP TYPE STRING,
VERTRAG TYPE STRING,
SPARTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISIDEX/EIDENTMATRIX_DATA_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_/ISIDEX/EIDENTMATRIX_DATA_STR-INT_UI sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-EXT_UI sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-NAME1 sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-NAME2 sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-STREET sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-HOUSENR sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-HOUSENREXT sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-POSTCODE sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-CITY sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-FLOOR sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-ROOMNUMBER sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-METERNR sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-EQUNR sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-MATNR sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-BU_PARTNER sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-BU_AUGRP sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-VERTRAG sy-vline 
WA_/ISIDEX/EIDENTMATRIX_DATA_STR-SPARTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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