ABAP Select data from SAP table ISUS_UMC_CM_IR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUS_UMC_CM_IR
*  INTO TABLE @DATA(IT_ISUS_UMC_CM_IR2).
*--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_ISUS_UMC_CM_IR INDEX 1 INTO DATA(WA_ISUS_UMC_CM_IR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUS_UMC_CM_IR>-GUID = 1.
<ISUS_UMC_CM_IR>-TRANSACTION_ID = 1.
<ISUS_UMC_CM_IR>-BP_NUMBER = 1.
<ISUS_UMC_CM_IR>-PROCESS_TYPE = 1.
<ISUS_UMC_CM_IR>-DESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUS_UMC_CM_IR-PREMISE_ID, sy-vline,
  WA_ISUS_UMC_CM_IR-BUAG_ID, sy-vline,
  WA_ISUS_UMC_CM_IR-PRIORITY, sy-vline,
  WA_ISUS_UMC_CM_IR-STATUS, sy-vline,
  WA_ISUS_UMC_CM_IR-TIMESTAMP, sy-vline,
  WA_ISUS_UMC_CM_IR-REASON_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUS_UMC_CM_IR 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_ISUS_UMC_CM_IR 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_ISUS_UMC_CM_IR INTO WA_ISUS_UMC_CM_IR.


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

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

*Conversion exit ALPHA, internal->external for field BUAG_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISUS_UMC_CM_IR-BUAG_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUS_UMC_CM_IR-BUAG_ID.
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_ISUS_UMC_CM_IR_STR, 
GUID TYPE STRING,
TRANSACTION_ID TYPE STRING,
BP_NUMBER TYPE STRING,
PROCESS_TYPE TYPE STRING,
DESCRIPTION TYPE STRING,
PREMISE_ID TYPE STRING,
BUAG_ID TYPE STRING,
PRIORITY TYPE STRING,
STATUS TYPE STRING,
TIMESTAMP TYPE STRING,
REASON_ID TYPE STRING,
REASON TYPE STRING,
CAT_TYPE TYPE STRING,
CODE_GROUP TYPE STRING,
CODE TYPE STRING,
CHANNEL_CODE TYPE STRING,
CAT_1_GUID TYPE STRING,
CAT_2_GUID TYPE STRING,
CAT_3_GUID TYPE STRING,
CAT_1_GUID22 TYPE STRING,
CAT_2_GUID22 TYPE STRING,
CAT_3_GUID22 TYPE STRING,
TEXT_LINES TYPE STRING,
DATE_FROM TYPE STRING,
CREATED_BY TYPE STRING,
TIME_FROM TYPE STRING,
CHANGED_BY TYPE STRING,
STATUS_TXT TYPE STRING,
CHANNEL_TEXT TYPE STRING,
TRANSACTION_TYPE TYPE STRING,
REASON_TEXT TYPE STRING,
PRIORITY_TXT TYPE STRING,
CATEGORY1_DESC TYPE STRING,
CATEGORY2_DESC TYPE STRING,
CATEGORY3_DESC TYPE STRING,
INCOMING_FLAG TYPE STRING,
NOTE_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUS_UMC_CM_IR_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_ISUS_UMC_CM_IR_STR-GUID sy-vline 
WA_ISUS_UMC_CM_IR_STR-TRANSACTION_ID sy-vline 
WA_ISUS_UMC_CM_IR_STR-BP_NUMBER sy-vline 
WA_ISUS_UMC_CM_IR_STR-PROCESS_TYPE sy-vline 
WA_ISUS_UMC_CM_IR_STR-DESCRIPTION sy-vline 
WA_ISUS_UMC_CM_IR_STR-PREMISE_ID sy-vline 
WA_ISUS_UMC_CM_IR_STR-BUAG_ID sy-vline 
WA_ISUS_UMC_CM_IR_STR-PRIORITY sy-vline 
WA_ISUS_UMC_CM_IR_STR-STATUS sy-vline 
WA_ISUS_UMC_CM_IR_STR-TIMESTAMP sy-vline 
WA_ISUS_UMC_CM_IR_STR-REASON_ID sy-vline 
WA_ISUS_UMC_CM_IR_STR-REASON sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_TYPE sy-vline 
WA_ISUS_UMC_CM_IR_STR-CODE_GROUP sy-vline 
WA_ISUS_UMC_CM_IR_STR-CODE sy-vline 
WA_ISUS_UMC_CM_IR_STR-CHANNEL_CODE sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_1_GUID sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_2_GUID sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_3_GUID sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_1_GUID22 sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_2_GUID22 sy-vline 
WA_ISUS_UMC_CM_IR_STR-CAT_3_GUID22 sy-vline 
WA_ISUS_UMC_CM_IR_STR-TEXT_LINES sy-vline 
WA_ISUS_UMC_CM_IR_STR-DATE_FROM sy-vline 
WA_ISUS_UMC_CM_IR_STR-CREATED_BY sy-vline 
WA_ISUS_UMC_CM_IR_STR-TIME_FROM sy-vline 
WA_ISUS_UMC_CM_IR_STR-CHANGED_BY sy-vline 
WA_ISUS_UMC_CM_IR_STR-STATUS_TXT sy-vline 
WA_ISUS_UMC_CM_IR_STR-CHANNEL_TEXT sy-vline 
WA_ISUS_UMC_CM_IR_STR-TRANSACTION_TYPE sy-vline 
WA_ISUS_UMC_CM_IR_STR-REASON_TEXT sy-vline 
WA_ISUS_UMC_CM_IR_STR-PRIORITY_TXT sy-vline 
WA_ISUS_UMC_CM_IR_STR-CATEGORY1_DESC sy-vline 
WA_ISUS_UMC_CM_IR_STR-CATEGORY2_DESC sy-vline 
WA_ISUS_UMC_CM_IR_STR-CATEGORY3_DESC sy-vline 
WA_ISUS_UMC_CM_IR_STR-INCOMING_FLAG sy-vline 
WA_ISUS_UMC_CM_IR_STR-NOTE_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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