ABAP Select data from SAP table ISCOMMITMENTITEMTP_DETERM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISCOMMITMENTITEMTP_DETERM
*  INTO TABLE @DATA(IT_ISCOMMITMENTITEMTP_DETERM2).
*--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_ISCOMMITMENTITEMTP_DETERM INDEX 1 INTO DATA(WA_ISCOMMITMENTITEMTP_DETERM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISCOMMITMENTITEMTP_DETERM>-COMMITMENTITEMINTERNALID = 1.
<ISCOMMITMENTITEMTP_DETERM>-COMMITMENTITEMSHORTID = 1.
<ISCOMMITMENTITEMTP_DETERM>-COMMITMENTITEMISPOSTINGENABLED = 1.
<ISCOMMITMENTITEMTP_DETERM>-CMTMTITMFINANCIALTRANSACTION = 1.
<ISCOMMITMENTITEMTP_DETERM>-COMMITMENTITEMCATEGORY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISCOMMITMENTITEMTP_DETERM-COMMITMENTITEMTYPE, sy-vline,
  WA_ISCOMMITMENTITEMTP_DETERM-PARENTCOMMITMENTITEM, sy-vline,
  WA_ISCOMMITMENTITEMTP_DETERM-FUNDSCENTER, sy-vline,
  WA_ISCOMMITMENTITEMTP_DETERM-CMTMTITMDEFAULTFUNDSCENTER, sy-vline,
  WA_ISCOMMITMENTITEMTP_DETERM-CMTMTITMCARRYFWDITMCATEGORY, sy-vline,
  WA_ISCOMMITMENTITEMTP_DETERM-COMMITMENTITEMISSTATISTICAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISCOMMITMENTITEMTP_DETERM 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_ISCOMMITMENTITEMTP_DETERM 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_ISCOMMITMENTITEMTP_DETERM INTO WA_ISCOMMITMENTITEMTP_DETERM.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_ISCOMMITMENTITEMTP_DETERM_STR, 
COMMITMENTITEMINTERNALID TYPE STRING,
COMMITMENTITEMSHORTID 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,END OF T_EKKO_STR.
DATA: WA_ISCOMMITMENTITEMTP_DETERM_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_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMINTERNALID sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMSHORTID sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMISPOSTINGENABLED sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-CMTMTITMFINANCIALTRANSACTION sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMCATEGORY sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMTYPE sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-PARENTCOMMITMENTITEM sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-FUNDSCENTER sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-CMTMTITMDEFAULTFUNDSCENTER sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-CMTMTITMCARRYFWDITMCATEGORY sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMISSTATISTICAL sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMAUTHZNGRP sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-CMTMTITEMFINMGMTAREAFORAUTHZN sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-VALIDITYENDDATE sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-VALIDITYSTARTDATE sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMEXPIRATIONDATE sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMNAME sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMDESCRIPTION sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMDESCRIPTION2 sy-vline 
WA_ISCOMMITMENTITEMTP_DETERM_STR-COMMITMENTITEMDESCRIPTION3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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