ABAP Select data from SAP table TOA_CARA2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TOA_CARA2 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 TOA_CARA2. 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 TOA_CARA2 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_TOA_CARA2 TYPE STANDARD TABLE OF TOA_CARA2,
      WA_TOA_CARA2 TYPE TOA_CARA2,
      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: <TOA_CARA2> TYPE TOA_CARA2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TOA_CARA2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TOA_CARA2
  INTO TABLE IT_TOA_CARA2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TOA_CARA2
*  INTO TABLE @DATA(IT_TOA_CARA22).
*--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_TOA_CARA2 INDEX 1 INTO DATA(WA_TOA_CARA22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TOA_CARA2 ASSIGNING <TOA_CARA2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TOA_CARA2>-UNIT = 1.
<TOA_CARA2>-SIGN = 1.
<TOA_CARA2>-S_PATH = 1.
<TOA_CARA2>-SAP_OBJECT = 1.
<TOA_CARA2>-AR_OBJECT = 1.

ENDLOOP.

LOOP AT IT_TOA_CARA2 INTO WA_TOA_CARA2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TOA_CARA2-ARCHIV_ID, sy-vline,
  WA_TOA_CARA2-DOC_TYPE, sy-vline,
  WA_TOA_CARA2-RPC_HOST, sy-vline,
  WA_TOA_CARA2-RPC_SERVIC, sy-vline,
  WA_TOA_CARA2-INTERFACE, sy-vline,
  WA_TOA_CARA2-MANDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TOA_CARA2 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_TOA_CARA2 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_TOA_CARA2 INTO WA_TOA_CARA2.


*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 SPDEV, internal->external for field DRUCKER
CALL FUNCTION 'CONVERSION_EXIT_SPDEV_OUTPUT'
  EXPORTING
    input =                      WA_TOA_CARA2-DRUCKER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TOA_CARA2-DRUCKER.
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_TOA_CARA2_STR, 
UNIT TYPE STRING,
SIGN TYPE STRING,
S_PATH TYPE STRING,
SAP_OBJECT TYPE STRING,
AR_OBJECT TYPE STRING,
ARCHIV_ID TYPE STRING,
DOC_TYPE TYPE STRING,
RPC_HOST TYPE STRING,
RPC_SERVIC TYPE STRING,
INTERFACE TYPE STRING,
MANDT TYPE STRING,
REPORT TYPE STRING,
INFO TYPE STRING,
TEXT TYPE STRING,
DATUM TYPE STRING,
BENUTZER TYPE STRING,
DRUCKER TYPE STRING,
FORMULAR TYPE STRING,
ARCHIVPATH TYPE STRING,
PROTOCOL TYPE STRING,
VERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TOA_CARA2_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_TOA_CARA2_STR-UNIT sy-vline 
WA_TOA_CARA2_STR-SIGN sy-vline 
WA_TOA_CARA2_STR-S_PATH sy-vline 
WA_TOA_CARA2_STR-SAP_OBJECT sy-vline 
WA_TOA_CARA2_STR-AR_OBJECT sy-vline 
WA_TOA_CARA2_STR-ARCHIV_ID sy-vline 
WA_TOA_CARA2_STR-DOC_TYPE sy-vline 
WA_TOA_CARA2_STR-RPC_HOST sy-vline 
WA_TOA_CARA2_STR-RPC_SERVIC sy-vline 
WA_TOA_CARA2_STR-INTERFACE sy-vline 
WA_TOA_CARA2_STR-MANDT sy-vline 
WA_TOA_CARA2_STR-REPORT sy-vline 
WA_TOA_CARA2_STR-INFO sy-vline 
WA_TOA_CARA2_STR-TEXT sy-vline 
WA_TOA_CARA2_STR-DATUM sy-vline 
WA_TOA_CARA2_STR-BENUTZER sy-vline 
WA_TOA_CARA2_STR-DRUCKER sy-vline 
WA_TOA_CARA2_STR-FORMULAR sy-vline 
WA_TOA_CARA2_STR-ARCHIVPATH sy-vline 
WA_TOA_CARA2_STR-PROTOCOL sy-vline 
WA_TOA_CARA2_STR-VERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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