ABAP Select data from SAP table ITCCA into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ITCCA 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 ITCCA. 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 ITCCA 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_ITCCA TYPE STANDARD TABLE OF ITCCA,
      WA_ITCCA TYPE ITCCA,
      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: <ITCCA> TYPE ITCCA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITCCA
*  INTO TABLE @DATA(IT_ITCCA2).
*--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_ITCCA INDEX 1 INTO DATA(WA_ITCCA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITCCA>-TDETYPE = 1.
<ITCCA>-TDWTYPE = 1.
<ITCCA>-TDFREE = 1.
<ITCCA>-TDNEW = 1.
<ITCCA>-TDTXTIND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITCCA-TDWININD, sy-vline,
  WA_ITCCA-TDEVTIND, sy-vline,
  WA_ITCCA-TDSUCC, sy-vline,
  WA_ITCCA-TDPRED, sy-vline,
  WA_ITCCA-TDSCANSTAT, sy-vline,
  WA_ITCCA-TDFROMLINE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITCCA 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_ITCCA 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_ITCCA INTO WA_ITCCA.


*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_ITCCA_STR, 
TDETYPE TYPE STRING,
TDWTYPE TYPE STRING,
TDFREE TYPE STRING,
TDNEW TYPE STRING,
TDTXTIND TYPE STRING,
TDWININD TYPE STRING,
TDEVTIND TYPE STRING,
TDSUCC TYPE STRING,
TDPRED TYPE STRING,
TDSCANSTAT TYPE STRING,
TDFROMLINE TYPE STRING,
TDCURLINE TYPE STRING,
TDTOLINE TYPE STRING,
TDPOS TYPE STRING,
TDMAXPOS TYPE STRING,
TDLPOS TYPE STRING,
TDLMAXPOS TYPE STRING,
TDVARTOP TYPE STRING,
TDRAW TYPE STRING,
TDACTIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITCCA_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_ITCCA_STR-TDETYPE sy-vline 
WA_ITCCA_STR-TDWTYPE sy-vline 
WA_ITCCA_STR-TDFREE sy-vline 
WA_ITCCA_STR-TDNEW sy-vline 
WA_ITCCA_STR-TDTXTIND sy-vline 
WA_ITCCA_STR-TDWININD sy-vline 
WA_ITCCA_STR-TDEVTIND sy-vline 
WA_ITCCA_STR-TDSUCC sy-vline 
WA_ITCCA_STR-TDPRED sy-vline 
WA_ITCCA_STR-TDSCANSTAT sy-vline 
WA_ITCCA_STR-TDFROMLINE sy-vline 
WA_ITCCA_STR-TDCURLINE sy-vline 
WA_ITCCA_STR-TDTOLINE sy-vline 
WA_ITCCA_STR-TDPOS sy-vline 
WA_ITCCA_STR-TDMAXPOS sy-vline 
WA_ITCCA_STR-TDLPOS sy-vline 
WA_ITCCA_STR-TDLMAXPOS sy-vline 
WA_ITCCA_STR-TDVARTOP sy-vline 
WA_ITCCA_STR-TDRAW sy-vline 
WA_ITCCA_STR-TDACTIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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