ABAP Select data from SAP table UCMI210 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP UCMI210 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 UCMI210. 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 UCMI210 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_UCMI210 TYPE STANDARD TABLE OF UCMI210,
      WA_UCMI210 TYPE UCMI210,
      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: <UCMI210> TYPE UCMI210.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_UCMI210.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM UCMI210
  INTO TABLE IT_UCMI210.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UCMI210
*  INTO TABLE @DATA(IT_UCMI2102).
*--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_UCMI210 INDEX 1 INTO DATA(WA_UCMI2102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_UCMI210 ASSIGNING <UCMI210>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UCMI210>-MANDT = 1.
<UCMI210>-AREA = 1.
<UCMI210>-ITKEY = 1.
<UCMI210>-SVERSIONTYPE = 1.
<UCMI210>-SVERSION = 1.

ENDLOOP.

LOOP AT IT_UCMI210 INTO WA_UCMI210.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UCMI210-FROMYEAR, sy-vline,
  WA_UCMI210-FROMPERIOD, sy-vline,
  WA_UCMI210-SEQNR, sy-vline,
  WA_UCMI210-ACCID1, sy-vline,
  WA_UCMI210-ACCID2, sy-vline,
  WA_UCMI210-ACCID3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UCMI210 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_UCMI210 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_UCMI210 INTO WA_UCMI210.


*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 SVERSION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_UCMI210-SVERSION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCMI210-SVERSION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FYINV, internal->external for field FROMYEAR
CALL FUNCTION 'CONVERSION_EXIT_FYINV_OUTPUT'
  EXPORTING
    input =                      WA_UCMI210-FROMYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCMI210-FROMYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FPINV, internal->external for field FROMPERIOD
CALL FUNCTION 'CONVERSION_EXIT_FPINV_OUTPUT'
  EXPORTING
    input =                      WA_UCMI210-FROMPERIOD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_UCMI210-FROMPERIOD.
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_UCMI210_STR, 
MANDT TYPE STRING,
AREA TYPE STRING,
ITKEY TYPE STRING,
SVERSIONTYPE TYPE STRING,
SVERSION TYPE STRING,
FROMYEAR TYPE STRING,
FROMPERIOD TYPE STRING,
SEQNR TYPE STRING,
ACCID1 TYPE STRING,
ACCID2 TYPE STRING,
ACCID3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UCMI210_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_UCMI210_STR-MANDT sy-vline 
WA_UCMI210_STR-AREA sy-vline 
WA_UCMI210_STR-ITKEY sy-vline 
WA_UCMI210_STR-SVERSIONTYPE sy-vline 
WA_UCMI210_STR-SVERSION sy-vline 
WA_UCMI210_STR-FROMYEAR sy-vline 
WA_UCMI210_STR-FROMPERIOD sy-vline 
WA_UCMI210_STR-SEQNR sy-vline 
WA_UCMI210_STR-ACCID1 sy-vline 
WA_UCMI210_STR-ACCID2 sy-vline 
WA_UCMI210_STR-ACCID3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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