ABAP Select data from SAP table ITCITMELEMENRCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITCITMELEMENRCD
*  INTO TABLE @DATA(IT_ITCITMELEMENRCD2).
*--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_ITCITMELEMENRCD INDEX 1 INTO DATA(WA_ITCITMELEMENRCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITCITMELEMENRCD>-MANDT = 1.
<ITCITMELEMENRCD>-TRANSPCHARGEITEMELEMENTUUID = 1.
<ITCITMELEMENRCD>-TRANSPORTATIONCHARGESOBJUUID = 1.
<ITCITMELEMENRCD>-TRANSPCHARGEITEMUUID = 1.
<ITCITMELEMENRCD>-TRANSPCHARGECALCSHEETLINENMBR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITCITMELEMENRCD-TRANSPCHARGEINSTRNTYPE, sy-vline,
  WA_ITCITMELEMENRCD-TRANSPCHARGETYPE, sy-vline,
  WA_ITCITMELEMENRCD-TRANSPCHARGESUBCATEGORY, sy-vline,
  WA_ITCITMELEMENRCD-TRANSPCHARGECATEGORY, sy-vline,
  WA_ITCITMELEMENRCD-TRANSPCHARGECALCRESLNBASE, sy-vline,
  WA_ITCITMELEMENRCD-TRANSPCHARGEITMELMNTCALCDTETME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITCITMELEMENRCD 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_ITCITMELEMENRCD 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_ITCITMELEMENRCD INTO WA_ITCITMELEMENRCD.


*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 TRANSPCHARGECALCSHEETLINENMBR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITCITMELEMENRCD-TRANSPCHARGECALCSHEETLINENMBR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITCITMELEMENRCD-TRANSPCHARGECALCSHEETLINENMBR.
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_ITCITMELEMENRCD_STR, 
MANDT TYPE STRING,
TRANSPCHARGEITEMELEMENTUUID TYPE STRING,
TRANSPORTATIONCHARGESOBJUUID TYPE STRING,
TRANSPCHARGEITEMUUID TYPE STRING,
TRANSPCHARGECALCSHEETLINENMBR TYPE STRING,
TRANSPCHARGEINSTRNTYPE TYPE STRING,
TRANSPCHARGETYPE TYPE STRING,
TRANSPCHARGESUBCATEGORY TYPE STRING,
TRANSPCHARGECATEGORY TYPE STRING,
TRANSPCHARGECALCRESLNBASE TYPE STRING,
TRANSPCHARGEITMELMNTCALCDTETME TYPE STRING,
TRANSPCHARGEISINACTIVE TYPE STRING,
TRANSPCHARGECALCDAMOUNT TYPE STRING,
TRANSPCHARGECALCDAMOUNTCRCY TYPE STRING,
CREDITAMOUNT TYPE STRING,
CREDITAMOUNTCURRENCY TYPE STRING,
INVOICEDAMOUNT TYPE STRING,
INVOICEDAMOUNTCURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITCITMELEMENRCD_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_ITCITMELEMENRCD_STR-MANDT sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGEITEMELEMENTUUID sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPORTATIONCHARGESOBJUUID sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGEITEMUUID sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGECALCSHEETLINENMBR sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGEINSTRNTYPE sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGETYPE sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGESUBCATEGORY sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGECATEGORY sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGECALCRESLNBASE sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGEITMELMNTCALCDTETME sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGEISINACTIVE sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGECALCDAMOUNT sy-vline 
WA_ITCITMELEMENRCD_STR-TRANSPCHARGECALCDAMOUNTCRCY sy-vline 
WA_ITCITMELEMENRCD_STR-CREDITAMOUNT sy-vline 
WA_ITCITMELEMENRCD_STR-CREDITAMOUNTCURRENCY sy-vline 
WA_ITCITMELEMENRCD_STR-INVOICEDAMOUNT sy-vline 
WA_ITCITMELEMENRCD_STR-INVOICEDAMOUNTCURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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