ABAP Select data from SAP table ANGCCLFN3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ANGCCLFN3 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 ANGCCLFN3. 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 ANGCCLFN3 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_ANGCCLFN3 TYPE STANDARD TABLE OF ANGCCLFN3,
      WA_ANGCCLFN3 TYPE ANGCCLFN3,
      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: <ANGCCLFN3> TYPE ANGCCLFN3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ANGCCLFN3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ANGCCLFN3
  INTO TABLE IT_ANGCCLFN3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ANGCCLFN3
*  INTO TABLE @DATA(IT_ANGCCLFN32).
*--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_ANGCCLFN3 INDEX 1 INTO DATA(WA_ANGCCLFN32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ANGCCLFN3 ASSIGNING <ANGCCLFN3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ANGCCLFN3>-MANDT = 1.
<ANGCCLFN3>-CHANGENUMBER = 1.
<ANGCCLFN3>-CLASSTYPE = 1.
<ANGCCLFN3>-CHARCINTERNALID = 1.
<ANGCCLFN3>-CHARCVALUEPOSITIONNUMBER = 1.

ENDLOOP.

LOOP AT IT_ANGCCLFN3 INTO WA_ANGCCLFN3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ANGCCLFN3-KEYDATE, sy-vline,
  WA_ANGCCLFN3-CHARCVALUEDEPENDENCY, sy-vline,
  WA_ANGCCLFN3-CHARCVALUE, sy-vline,
  WA_ANGCCLFN3-CHARCFROMNUMERICVALUE, sy-vline,
  WA_ANGCCLFN3-CHARCFROMNUMERICVALUEUNIT, sy-vline,
  WA_ANGCCLFN3-CHARCTONUMERICVALUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ANGCCLFN3 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_ANGCCLFN3 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_ANGCCLFN3 INTO WA_ANGCCLFN3.


*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 CUNIT, internal->external for field CHARCFROMNUMERICVALUEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ANGCCLFN3-CHARCFROMNUMERICVALUEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANGCCLFN3-CHARCFROMNUMERICVALUEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CHARCTONUMERICVALUEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ANGCCLFN3-CHARCTONUMERICVALUEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ANGCCLFN3-CHARCTONUMERICVALUEUNIT.
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_ANGCCLFN3_STR, 
MANDT TYPE STRING,
CHANGENUMBER TYPE STRING,
CLASSTYPE TYPE STRING,
CHARCINTERNALID TYPE STRING,
CHARCVALUEPOSITIONNUMBER TYPE STRING,
KEYDATE TYPE STRING,
CHARCVALUEDEPENDENCY TYPE STRING,
CHARCVALUE TYPE STRING,
CHARCFROMNUMERICVALUE TYPE STRING,
CHARCFROMNUMERICVALUEUNIT TYPE STRING,
CHARCTONUMERICVALUE TYPE STRING,
CHARCTONUMERICVALUEUNIT TYPE STRING,
CHARCFROMDECIMALVALUE TYPE STRING,
CHARCTODECIMALVALUE TYPE STRING,
CHARCFROMAMOUNT TYPE STRING,
CHARCTOAMOUNT TYPE STRING,
CURRENCY TYPE STRING,
CHARCFROMDATE TYPE STRING,
CHARCTODATE TYPE STRING,
CHARCFROMTIME TYPE STRING,
CHARCTOTIME TYPE STRING,
CHARACTERISTICAUTHOR TYPE STRING,
CHARCMAINTAUTHGRP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ANGCCLFN3_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_ANGCCLFN3_STR-MANDT sy-vline 
WA_ANGCCLFN3_STR-CHANGENUMBER sy-vline 
WA_ANGCCLFN3_STR-CLASSTYPE sy-vline 
WA_ANGCCLFN3_STR-CHARCINTERNALID sy-vline 
WA_ANGCCLFN3_STR-CHARCVALUEPOSITIONNUMBER sy-vline 
WA_ANGCCLFN3_STR-KEYDATE sy-vline 
WA_ANGCCLFN3_STR-CHARCVALUEDEPENDENCY sy-vline 
WA_ANGCCLFN3_STR-CHARCVALUE sy-vline 
WA_ANGCCLFN3_STR-CHARCFROMNUMERICVALUE sy-vline 
WA_ANGCCLFN3_STR-CHARCFROMNUMERICVALUEUNIT sy-vline 
WA_ANGCCLFN3_STR-CHARCTONUMERICVALUE sy-vline 
WA_ANGCCLFN3_STR-CHARCTONUMERICVALUEUNIT sy-vline 
WA_ANGCCLFN3_STR-CHARCFROMDECIMALVALUE sy-vline 
WA_ANGCCLFN3_STR-CHARCTODECIMALVALUE sy-vline 
WA_ANGCCLFN3_STR-CHARCFROMAMOUNT sy-vline 
WA_ANGCCLFN3_STR-CHARCTOAMOUNT sy-vline 
WA_ANGCCLFN3_STR-CURRENCY sy-vline 
WA_ANGCCLFN3_STR-CHARCFROMDATE sy-vline 
WA_ANGCCLFN3_STR-CHARCTODATE sy-vline 
WA_ANGCCLFN3_STR-CHARCFROMTIME sy-vline 
WA_ANGCCLFN3_STR-CHARCTOTIME sy-vline 
WA_ANGCCLFN3_STR-CHARACTERISTICAUTHOR sy-vline 
WA_ANGCCLFN3_STR-CHARCMAINTAUTHGRP sy-vline      INTO ld_text SEPARATED BY SPACE.

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