ABAP Select data from SAP table CNVCMIS_A_1_FUNC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CNVCMIS_A_1_FUNC 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 CNVCMIS_A_1_FUNC. 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 CNVCMIS_A_1_FUNC 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_CNVCMIS_A_1_FUNC TYPE STANDARD TABLE OF CNVCMIS_A_1_FUNC,
      WA_CNVCMIS_A_1_FUNC TYPE CNVCMIS_A_1_FUNC,
      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: <CNVCMIS_A_1_FUNC> TYPE CNVCMIS_A_1_FUNC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNVCMIS_A_1_FUNC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNVCMIS_A_1_FUNC
  INTO TABLE IT_CNVCMIS_A_1_FUNC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCMIS_A_1_FUNC
*  INTO TABLE @DATA(IT_CNVCMIS_A_1_FUNC2).
*--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_CNVCMIS_A_1_FUNC INDEX 1 INTO DATA(WA_CNVCMIS_A_1_FUNC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNVCMIS_A_1_FUNC ASSIGNING <CNVCMIS_A_1_FUNC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCMIS_A_1_FUNC>-MANDT = 1.
<CNVCMIS_A_1_FUNC>-PACKID = 1.
<CNVCMIS_A_1_FUNC>-VERSN = 1.
<CNVCMIS_A_1_FUNC>-SYSID = 1.
<CNVCMIS_A_1_FUNC>-AREA = 1.

ENDLOOP.

LOOP AT IT_CNVCMIS_A_1_FUNC INTO WA_CNVCMIS_A_1_FUNC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCMIS_A_1_FUNC-FUNCNAME, sy-vline,
  WA_CNVCMIS_A_1_FUNC-PNAME, sy-vline,
  WA_CNVCMIS_A_1_FUNC-INCLUDE, sy-vline,
  WA_CNVCMIS_A_1_FUNC-FREEDATE, sy-vline,
  WA_CNVCMIS_A_1_FUNC-APPL, sy-vline,
  WA_CNVCMIS_A_1_FUNC-MAND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVCMIS_A_1_FUNC 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_CNVCMIS_A_1_FUNC 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_CNVCMIS_A_1_FUNC INTO WA_CNVCMIS_A_1_FUNC.


*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_CNVCMIS_A_1_FUNC-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVCMIS_A_1_FUNC-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_CNVCMIS_A_1_FUNC_STR, 
MANDT TYPE STRING,
PACKID TYPE STRING,
VERSN TYPE STRING,
SYSID TYPE STRING,
AREA TYPE STRING,
FUNCNAME TYPE STRING,
PNAME TYPE STRING,
INCLUDE TYPE STRING,
FREEDATE TYPE STRING,
APPL TYPE STRING,
MAND TYPE STRING,
FMODE TYPE STRING,
HOST TYPE STRING,
UTASK TYPE STRING,
SPRAS TYPE STRING,
STEXT TYPE STRING,
SCALAR TYPE STRING,
SCALAR2 TYPE STRING,
VERSIONNO TYPE STRING,
SEVERITY TYPE STRING,
PNAME_MAIN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVCMIS_A_1_FUNC_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_CNVCMIS_A_1_FUNC_STR-MANDT sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-PACKID sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-VERSN sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-SYSID sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-AREA sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-FUNCNAME sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-PNAME sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-INCLUDE sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-FREEDATE sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-APPL sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-MAND sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-FMODE sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-HOST sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-UTASK sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-SPRAS sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-STEXT sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-SCALAR sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-SCALAR2 sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-VERSIONNO sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-SEVERITY sy-vline 
WA_CNVCMIS_A_1_FUNC_STR-PNAME_MAIN sy-vline      INTO ld_text SEPARATED BY SPACE.

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