ABAP Select data from SAP table TCURALV3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TCURALV3 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 TCURALV3. 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 TCURALV3 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_TCURALV3 TYPE STANDARD TABLE OF TCURALV3,
      WA_TCURALV3 TYPE TCURALV3,
      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: <TCURALV3> TYPE TCURALV3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TCURALV3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TCURALV3
  INTO TABLE IT_TCURALV3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TCURALV3
*  INTO TABLE @DATA(IT_TCURALV32).
*--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_TCURALV3 INDEX 1 INTO DATA(WA_TCURALV32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TCURALV3 ASSIGNING <TCURALV3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TCURALV3>-WKSET = 1.
<TCURALV3>-KTYP = 1.
<TCURALV3>-FCURR = 1.
<TCURALV3>-TCURR = 1.
<TCURALV3>-FFACT = 1.

ENDLOOP.

LOOP AT IT_TCURALV3 INTO WA_TCURALV3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TCURALV3-TFACT, sy-vline,
  WA_TCURALV3-FDATE, sy-vline,
  WA_TCURALV3-QUOT, sy-vline,
  WA_TCURALV3-QUOTTXT, sy-vline,
  WA_TCURALV3-RELATION, sy-vline,
  WA_TCURALV3-GDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TCURALV3 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_TCURALV3 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_TCURALV3 INTO WA_TCURALV3.


*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_TCURALV3_STR, 
WKSET TYPE STRING,
KTYP TYPE STRING,
FCURR TYPE STRING,
TCURR TYPE STRING,
FFACT TYPE STRING,
TFACT TYPE STRING,
FDATE TYPE STRING,
QUOT TYPE STRING,
QUOTTXT TYPE STRING,
RELATION TYPE STRING,
GDATE TYPE STRING,
RATE TYPE STRING,
RATEC TYPE STRING,
RATEOLD TYPE STRING,
DATEOLD TYPE STRING,
TOLERANCE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TCURALV3_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_TCURALV3_STR-WKSET sy-vline 
WA_TCURALV3_STR-KTYP sy-vline 
WA_TCURALV3_STR-FCURR sy-vline 
WA_TCURALV3_STR-TCURR sy-vline 
WA_TCURALV3_STR-FFACT sy-vline 
WA_TCURALV3_STR-TFACT sy-vline 
WA_TCURALV3_STR-FDATE sy-vline 
WA_TCURALV3_STR-QUOT sy-vline 
WA_TCURALV3_STR-QUOTTXT sy-vline 
WA_TCURALV3_STR-RELATION sy-vline 
WA_TCURALV3_STR-GDATE sy-vline 
WA_TCURALV3_STR-RATE sy-vline 
WA_TCURALV3_STR-RATEC sy-vline 
WA_TCURALV3_STR-RATEOLD sy-vline 
WA_TCURALV3_STR-DATEOLD sy-vline 
WA_TCURALV3_STR-TOLERANCE sy-vline      INTO ld_text SEPARATED BY SPACE.

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