ABAP Select data from SAP table V_TCATX_COCONV into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_TCATX_COCONV
*  INTO TABLE @DATA(IT_V_TCATX_COCONV2).
*--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_V_TCATX_COCONV INDEX 1 INTO DATA(WA_V_TCATX_COCONV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_TCATX_COCONV>-MANDT = 1.
<V_TCATX_COCONV>-SPRAS = 1.
<V_TCATX_COCONV>-APPL = 1.
<V_TCATX_COCONV>-RECSEN = 1.
<V_TCATX_COCONV>-OBART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_TCATX_COCONV-CO_FIELD, sy-vline,
  WA_V_TCATX_COCONV-APPL_FIELD, sy-vline,
  WA_V_TCATX_COCONV-TABNAME, sy-vline,
  WA_V_TCATX_COCONV-KEY01, sy-vline,
  WA_V_TCATX_COCONV-KEY02, sy-vline,
  WA_V_TCATX_COCONV-KEY03, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_TCATX_COCONV 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_V_TCATX_COCONV 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_V_TCATX_COCONV INTO WA_V_TCATX_COCONV.


*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 SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_V_TCATX_COCONV-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_TCATX_COCONV-SPRAS.
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_V_TCATX_COCONV_STR, 
MANDT TYPE STRING,
SPRAS TYPE STRING,
APPL TYPE STRING,
RECSEN TYPE STRING,
OBART TYPE STRING,
CO_FIELD TYPE STRING,
APPL_FIELD TYPE STRING,
TABNAME TYPE STRING,
KEY01 TYPE STRING,
KEY02 TYPE STRING,
KEY03 TYPE STRING,
KEY04 TYPE STRING,
KEY05 TYPE STRING,
KEY06 TYPE STRING,
KEY07 TYPE STRING,
TXT10 TYPE STRING,
TXT15 TYPE STRING,
TXT20 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_TCATX_COCONV_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_V_TCATX_COCONV_STR-MANDT sy-vline 
WA_V_TCATX_COCONV_STR-SPRAS sy-vline 
WA_V_TCATX_COCONV_STR-APPL sy-vline 
WA_V_TCATX_COCONV_STR-RECSEN sy-vline 
WA_V_TCATX_COCONV_STR-OBART sy-vline 
WA_V_TCATX_COCONV_STR-CO_FIELD sy-vline 
WA_V_TCATX_COCONV_STR-APPL_FIELD sy-vline 
WA_V_TCATX_COCONV_STR-TABNAME sy-vline 
WA_V_TCATX_COCONV_STR-KEY01 sy-vline 
WA_V_TCATX_COCONV_STR-KEY02 sy-vline 
WA_V_TCATX_COCONV_STR-KEY03 sy-vline 
WA_V_TCATX_COCONV_STR-KEY04 sy-vline 
WA_V_TCATX_COCONV_STR-KEY05 sy-vline 
WA_V_TCATX_COCONV_STR-KEY06 sy-vline 
WA_V_TCATX_COCONV_STR-KEY07 sy-vline 
WA_V_TCATX_COCONV_STR-TXT10 sy-vline 
WA_V_TCATX_COCONV_STR-TXT15 sy-vline 
WA_V_TCATX_COCONV_STR-TXT20 sy-vline      INTO ld_text SEPARATED BY SPACE.

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