ABAP Select data from SAP table CNVCMIS_A_20_RES_OUT 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_20_RES_OUT 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_20_RES_OUT. 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_20_RES_OUT 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_20_RES_OUT TYPE STANDARD TABLE OF CNVCMIS_A_20_RES_OUT,
      WA_CNVCMIS_A_20_RES_OUT TYPE CNVCMIS_A_20_RES_OUT,
      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_20_RES_OUT> TYPE CNVCMIS_A_20_RES_OUT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CNVCMIS_A_20_RES_OUT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CNVCMIS_A_20_RES_OUT
  INTO TABLE IT_CNVCMIS_A_20_RES_OUT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCMIS_A_20_RES_OUT
*  INTO TABLE @DATA(IT_CNVCMIS_A_20_RES_OUT2).
*--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_20_RES_OUT INDEX 1 INTO DATA(WA_CNVCMIS_A_20_RES_OUT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNVCMIS_A_20_RES_OUT ASSIGNING <CNVCMIS_A_20_RES_OUT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCMIS_A_20_RES_OUT>-STATUS_ICON = 1.
<CNVCMIS_A_20_RES_OUT>-ICON_NAME = 1.
<CNVCMIS_A_20_RES_OUT>-PACKID = 1.
<CNVCMIS_A_20_RES_OUT>-VERSION = 1.
<CNVCMIS_A_20_RES_OUT>-TABNAME = 1.

ENDLOOP.

LOOP AT IT_CNVCMIS_A_20_RES_OUT INTO WA_CNVCMIS_A_20_RES_OUT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCMIS_A_20_RES_OUT-COUNTER, sy-vline,
  WA_CNVCMIS_A_20_RES_OUT-FIELDNAME, sy-vline,
  WA_CNVCMIS_A_20_RES_OUT-DESTINATION_ID, sy-vline,
  WA_CNVCMIS_A_20_RES_OUT-TECH_KEY, sy-vline,
  WA_CNVCMIS_A_20_RES_OUT-CLEVEL, sy-vline,
  WA_CNVCMIS_A_20_RES_OUT-COMP_STAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVCMIS_A_20_RES_OUT 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_20_RES_OUT 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_20_RES_OUT INTO WA_CNVCMIS_A_20_RES_OUT.


*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_CNVCMIS_A_20_RES_OUT_STR, 
STATUS_ICON TYPE STRING,
ICON_NAME TYPE STRING,
PACKID TYPE STRING,
VERSION TYPE STRING,
TABNAME TYPE STRING,
COUNTER TYPE STRING,
FIELDNAME TYPE STRING,
DESTINATION_ID TYPE STRING,
TECH_KEY TYPE STRING,
CLEVEL TYPE STRING,
COMP_STAT TYPE STRING,
MSGTY TYPE STRING,
TEXT TYPE STRING,
CHG_MSGTY TYPE STRING,
ANNOTATION TYPE STRING,
CHANGED TYPE STRING,
CHGUSER TYPE STRING,
CHGDATE TYPE STRING,
CHGTIME TYPE STRING,
TOTAL TYPE STRING,
IDENTICAL TYPE STRING,
DISCRETE TYPE STRING,
DIFFERENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVCMIS_A_20_RES_OUT_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_20_RES_OUT_STR-STATUS_ICON sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-ICON_NAME sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-PACKID sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-VERSION sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-TABNAME sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-COUNTER sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-FIELDNAME sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-DESTINATION_ID sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-TECH_KEY sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-CLEVEL sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-COMP_STAT sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-MSGTY sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-TEXT sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-CHG_MSGTY sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-ANNOTATION sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-CHANGED sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-CHGUSER sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-CHGDATE sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-CHGTIME sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-TOTAL sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-IDENTICAL sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-DISCRETE sy-vline 
WA_CNVCMIS_A_20_RES_OUT_STR-DIFFERENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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