ABAP Select data from SAP table ICOMMITEMTP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICOMMITEMTP
*  INTO TABLE @DATA(IT_ICOMMITEMTP2).
*--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_ICOMMITEMTP INDEX 1 INTO DATA(WA_ICOMMITEMTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICOMMITEMTP>-MANDT = 1.
<ICOMMITEMTP>-FINANCIALMANAGEMENTAREA = 1.
<ICOMMITEMTP>-FINMGMTAREAFISCALYEAR = 1.
<ICOMMITEMTP>-COMMITMENTITEM = 1.
<ICOMMITEMTP>-FINANCIALMANAGEMENTAREAFOREDIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICOMMITEMTP-COMMITMENTITEMFOREDIT, sy-vline,
  WA_ICOMMITEMTP-FINMGMTAREAFISCALYEARFOREDIT, sy-vline,
  WA_ICOMMITEMTP-COMMITMENTITEMINTERNALID, sy-vline,
  WA_ICOMMITEMTP-COMMITMENTITEMSHORTID, sy-vline,
  WA_ICOMMITEMTP-COMMITMENTITEMINTERNALNAME, sy-vline,
  WA_ICOMMITEMTP-COMMITMENTITEMISPOSTINGENABLED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICOMMITEMTP 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_ICOMMITEMTP 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_ICOMMITEMTP INTO WA_ICOMMITEMTP.


*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 GJAHR, internal->external for field FINMGMTAREAFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ICOMMITEMTP-FINMGMTAREAFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOMMITEMTP-FINMGMTAREAFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_ICOMMITEMTP-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOMMITEMTP-COMMITMENTITEM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field COMMITMENTITEMFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_ICOMMITEMTP-COMMITMENTITEMFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOMMITEMTP-COMMITMENTITEMFOREDIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FINMGMTAREAFISCALYEARFOREDIT
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ICOMMITEMTP-FINMGMTAREAFISCALYEARFOREDIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ICOMMITEMTP-FINMGMTAREAFISCALYEARFOREDIT.
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_ICOMMITEMTP_STR, 
MANDT TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
FINMGMTAREAFISCALYEAR TYPE STRING,
COMMITMENTITEM TYPE STRING,
FINANCIALMANAGEMENTAREAFOREDIT TYPE STRING,
COMMITMENTITEMFOREDIT TYPE STRING,
FINMGMTAREAFISCALYEARFOREDIT TYPE STRING,
COMMITMENTITEMINTERNALID TYPE STRING,
COMMITMENTITEMSHORTID TYPE STRING,
COMMITMENTITEMINTERNALNAME TYPE STRING,
COMMITMENTITEMISPOSTINGENABLED TYPE STRING,
CMTMTITMFINANCIALTRANSACTION TYPE STRING,
COMMITMENTITEMCATEGORY TYPE STRING,
COMMITMENTITEMTYPE TYPE STRING,
PARENTCOMMITMENTITEM TYPE STRING,
FUNDSCENTER TYPE STRING,
CMTMTITMDEFAULTFUNDSCENTER TYPE STRING,
CMTMTITMCARRYFWDITMCATEGORY TYPE STRING,
COMMITMENTITEMISSTATISTICAL TYPE STRING,
COMMITMENTITEMAUTHZNGRP TYPE STRING,
CMTMTITEMFINMGMTAREAFORAUTHZN TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
COMMITMENTITEMEXPIRATIONDATE TYPE STRING,
COMMITMENTITEMNAME TYPE STRING,
COMMITMENTITEMDESCRIPTION TYPE STRING,
COMMITMENTITEMDESCRIPTION2 TYPE STRING,
COMMITMENTITEMDESCRIPTION3 TYPE STRING,
CREATIONDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICOMMITEMTP_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_ICOMMITEMTP_STR-MANDT sy-vline 
WA_ICOMMITEMTP_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_ICOMMITEMTP_STR-FINMGMTAREAFISCALYEAR sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEM sy-vline 
WA_ICOMMITEMTP_STR-FINANCIALMANAGEMENTAREAFOREDIT sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMFOREDIT sy-vline 
WA_ICOMMITEMTP_STR-FINMGMTAREAFISCALYEARFOREDIT sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMINTERNALID sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMSHORTID sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMINTERNALNAME sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMISPOSTINGENABLED sy-vline 
WA_ICOMMITEMTP_STR-CMTMTITMFINANCIALTRANSACTION sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMCATEGORY sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMTYPE sy-vline 
WA_ICOMMITEMTP_STR-PARENTCOMMITMENTITEM sy-vline 
WA_ICOMMITEMTP_STR-FUNDSCENTER sy-vline 
WA_ICOMMITEMTP_STR-CMTMTITMDEFAULTFUNDSCENTER sy-vline 
WA_ICOMMITEMTP_STR-CMTMTITMCARRYFWDITMCATEGORY sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMISSTATISTICAL sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMAUTHZNGRP sy-vline 
WA_ICOMMITEMTP_STR-CMTMTITEMFINMGMTAREAFORAUTHZN sy-vline 
WA_ICOMMITEMTP_STR-VALIDITYENDDATE sy-vline 
WA_ICOMMITEMTP_STR-VALIDITYSTARTDATE sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMEXPIRATIONDATE sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMNAME sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMDESCRIPTION sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMDESCRIPTION2 sy-vline 
WA_ICOMMITEMTP_STR-COMMITMENTITEMDESCRIPTION3 sy-vline 
WA_ICOMMITEMTP_STR-CREATIONDATE sy-vline 
WA_ICOMMITEMTP_STR-CREATEDBYUSER sy-vline      INTO ld_text SEPARATED BY SPACE.

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