ABAP Select data from SAP table /TDAG/CPV_REP005 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /TDAG/CPV_REP005 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 /TDAG/CPV_REP005. 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 /TDAG/CPV_REP005 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_/TDAG/CPV_REP005 TYPE STANDARD TABLE OF /TDAG/CPV_REP005,
      WA_/TDAG/CPV_REP005 TYPE /TDAG/CPV_REP005,
      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: </TDAG/CPV_REP005> TYPE /TDAG/CPV_REP005.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/TDAG/CPV_REP005.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /TDAG/CPV_REP005
  INTO TABLE IT_/TDAG/CPV_REP005.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /TDAG/CPV_REP005
*  INTO TABLE @DATA(IT_/TDAG/CPV_REP0052).
*--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_/TDAG/CPV_REP005 INDEX 1 INTO DATA(WA_/TDAG/CPV_REP0052).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/TDAG/CPV_REP005 ASSIGNING </TDAG/CPV_REP005>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</TDAG/CPV_REP005>-CLIENT = 1.
</TDAG/CPV_REP005>-REPNO = 1.
</TDAG/CPV_REP005>-ELEMENTID = 1.
</TDAG/CPV_REP005>-ATTRIBUTE = 1.
</TDAG/CPV_REP005>-INT_ELEMENTNAME = 1.

ENDLOOP.

LOOP AT IT_/TDAG/CPV_REP005 INTO WA_/TDAG/CPV_REP005.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/TDAG/CPV_REP005-SORT, sy-vline,
  WA_/TDAG/CPV_REP005-TYPE, sy-vline,
  WA_/TDAG/CPV_REP005-IDCAT, sy-vline,
  WA_/TDAG/CPV_REP005-IDTYPE, sy-vline,
  WA_/TDAG/CPV_REP005-LANGU, sy-vline,
  WA_/TDAG/CPV_REP005-ESTCAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/TDAG/CPV_REP005 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_/TDAG/CPV_REP005 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_/TDAG/CPV_REP005 INTO WA_/TDAG/CPV_REP005.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_/TDAG/CPV_REP005-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/TDAG/CPV_REP005-LANGU.
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_/TDAG/CPV_REP005_STR, 
CLIENT TYPE STRING,
REPNO TYPE STRING,
ELEMENTID TYPE STRING,
ATTRIBUTE TYPE STRING,
INT_ELEMENTNAME TYPE STRING,
SORT TYPE STRING,
TYPE TYPE STRING,
IDCAT TYPE STRING,
IDTYPE TYPE STRING,
LANGU TYPE STRING,
ESTCAT TYPE STRING,
ATNAM TYPE STRING,
PHRCAT TYPE STRING,
TEXTCAT TYPE STRING,
CONVERT_FUNC TYPE STRING,
EXIT_FUNC TYPE STRING,
CONSTANT TYPE STRING,
MISSING TYPE STRING,
MANDATORY TYPE STRING,
REPNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/TDAG/CPV_REP005_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_/TDAG/CPV_REP005_STR-CLIENT sy-vline 
WA_/TDAG/CPV_REP005_STR-REPNO sy-vline 
WA_/TDAG/CPV_REP005_STR-ELEMENTID sy-vline 
WA_/TDAG/CPV_REP005_STR-ATTRIBUTE sy-vline 
WA_/TDAG/CPV_REP005_STR-INT_ELEMENTNAME sy-vline 
WA_/TDAG/CPV_REP005_STR-SORT sy-vline 
WA_/TDAG/CPV_REP005_STR-TYPE sy-vline 
WA_/TDAG/CPV_REP005_STR-IDCAT sy-vline 
WA_/TDAG/CPV_REP005_STR-IDTYPE sy-vline 
WA_/TDAG/CPV_REP005_STR-LANGU sy-vline 
WA_/TDAG/CPV_REP005_STR-ESTCAT sy-vline 
WA_/TDAG/CPV_REP005_STR-ATNAM sy-vline 
WA_/TDAG/CPV_REP005_STR-PHRCAT sy-vline 
WA_/TDAG/CPV_REP005_STR-TEXTCAT sy-vline 
WA_/TDAG/CPV_REP005_STR-CONVERT_FUNC sy-vline 
WA_/TDAG/CPV_REP005_STR-EXIT_FUNC sy-vline 
WA_/TDAG/CPV_REP005_STR-CONSTANT sy-vline 
WA_/TDAG/CPV_REP005_STR-MISSING sy-vline 
WA_/TDAG/CPV_REP005_STR-MANDATORY sy-vline 
WA_/TDAG/CPV_REP005_STR-REPNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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