ABAP Select data from SAP table ESH_U_COMMIT_ITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_U_COMMIT_ITM
*  INTO TABLE @DATA(IT_ESH_U_COMMIT_ITM2).
*--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_ESH_U_COMMIT_ITM INDEX 1 INTO DATA(WA_ESH_U_COMMIT_ITM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_U_COMMIT_ITM-CMTMTITMFINANCIALTRANSACTION, sy-vline,
  WA_ESH_U_COMMIT_ITM-CMTMTITMFINTRANSACTIONTEXT, sy-vline,
  WA_ESH_U_COMMIT_ITM-CMTMTITMISPOSTINGENABLEDNAME, sy-vline,
  WA_ESH_U_COMMIT_ITM-COMMITMENTITEMAUTHZNGRP, sy-vline,
  WA_ESH_U_COMMIT_ITM-COMMITMENTITEMCATEGORY, sy-vline,
  WA_ESH_U_COMMIT_ITM-COMMITMENTITEMCATEGORYNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_U_COMMIT_ITM 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_ESH_U_COMMIT_ITM 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_ESH_U_COMMIT_ITM INTO WA_ESH_U_COMMIT_ITM.


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

*Conversion exit GJAHR, internal->external for field FINMGMTAREAFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ESH_U_COMMIT_ITM-FINMGMTAREAFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_U_COMMIT_ITM-FINMGMTAREAFISCALYEAR.
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_ESH_U_COMMIT_ITM_STR, 
MANDT TYPE STRING,
COMMITMENTITEM TYPE STRING,
FINANCIALMANAGEMENTAREA TYPE STRING,
FINMGMTAREAFISCALYEAR TYPE STRING,
CMTMTITMDEFAULTFUNDSCENTER TYPE STRING,
CMTMTITMFINANCIALTRANSACTION TYPE STRING,
CMTMTITMFINTRANSACTIONTEXT TYPE STRING,
CMTMTITMISPOSTINGENABLEDNAME TYPE STRING,
COMMITMENTITEMAUTHZNGRP TYPE STRING,
COMMITMENTITEMCATEGORY TYPE STRING,
COMMITMENTITEMCATEGORYNAME TYPE STRING,
COMMITMENTITEMEXPIRATIONDATE TYPE STRING,
COMMITMENTITEMISPOSTINGENABLED TYPE STRING,
COMMITMENTITEMISSTATISTICAL TYPE STRING,
COMMITMENTITEMNAME TYPE STRING,
COMMITMENTITEMTYPE TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATE TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_U_COMMIT_ITM_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_ESH_U_COMMIT_ITM_STR-MANDT sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEM sy-vline 
WA_ESH_U_COMMIT_ITM_STR-FINANCIALMANAGEMENTAREA sy-vline 
WA_ESH_U_COMMIT_ITM_STR-FINMGMTAREAFISCALYEAR sy-vline 
WA_ESH_U_COMMIT_ITM_STR-CMTMTITMDEFAULTFUNDSCENTER sy-vline 
WA_ESH_U_COMMIT_ITM_STR-CMTMTITMFINANCIALTRANSACTION sy-vline 
WA_ESH_U_COMMIT_ITM_STR-CMTMTITMFINTRANSACTIONTEXT sy-vline 
WA_ESH_U_COMMIT_ITM_STR-CMTMTITMISPOSTINGENABLEDNAME sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMAUTHZNGRP sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMCATEGORY sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMCATEGORYNAME sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMEXPIRATIONDATE sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMISPOSTINGENABLED sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMISSTATISTICAL sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMNAME sy-vline 
WA_ESH_U_COMMIT_ITM_STR-COMMITMENTITEMTYPE sy-vline 
WA_ESH_U_COMMIT_ITM_STR-CREATEDBYUSER sy-vline 
WA_ESH_U_COMMIT_ITM_STR-CREATIONDATE sy-vline 
WA_ESH_U_COMMIT_ITM_STR-VALIDITYENDDATE sy-vline 
WA_ESH_U_COMMIT_ITM_STR-VALIDITYSTARTDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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