ABAP Select data from SAP table CNVCDOPCA_OBJS 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 CNVCDOPCA_OBJS 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 CNVCDOPCA_OBJS. 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 CNVCDOPCA_OBJS 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_CNVCDOPCA_OBJS TYPE STANDARD TABLE OF CNVCDOPCA_OBJS,
      WA_CNVCDOPCA_OBJS TYPE CNVCDOPCA_OBJS,
      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: <CNVCDOPCA_OBJS> TYPE CNVCDOPCA_OBJS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCDOPCA_OBJS
*  INTO TABLE @DATA(IT_CNVCDOPCA_OBJS2).
*--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_CNVCDOPCA_OBJS INDEX 1 INTO DATA(WA_CNVCDOPCA_OBJS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCDOPCA_OBJS>-PROJ_ID = 1.
<CNVCDOPCA_OBJS>-SYSID = 1.
<CNVCDOPCA_OBJS>-OBJ_TYPE = 1.
<CNVCDOPCA_OBJS>-OBJ_NAME = 1.
<CNVCDOPCA_OBJS>-SUB_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCDOPCA_OBJS-SUB_NAME, sy-vline,
  WA_CNVCDOPCA_OBJS-OPERATION, sy-vline,
  WA_CNVCDOPCA_OBJS-OPER_COUNT, sy-vline,
  WA_CNVCDOPCA_OBJS-OPER_NAME, sy-vline,
  WA_CNVCDOPCA_OBJS-OBJ_NAMESPACE, sy-vline,
  WA_CNVCDOPCA_OBJS-DEVCLASS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVCDOPCA_OBJS 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_CNVCDOPCA_OBJS 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_CNVCDOPCA_OBJS INTO WA_CNVCDOPCA_OBJS.


*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 ALPHA, internal->external for field PROJ_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVCDOPCA_OBJS-PROJ_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVCDOPCA_OBJS-PROJ_ID.
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_CNVCDOPCA_OBJS_STR, 
PROJ_ID TYPE STRING,
SYSID TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_NAME TYPE STRING,
SUB_TYPE TYPE STRING,
SUB_NAME TYPE STRING,
OPERATION TYPE STRING,
OPER_COUNT TYPE STRING,
OPER_NAME TYPE STRING,
OBJ_NAMESPACE TYPE STRING,
DEVCLASS TYPE STRING,
DEVCL_TEXT TYPE STRING,
APPL_COMP TYPE STRING,
APPL_COMP_TEXT TYPE STRING,
SUB_TEXT TYPE STRING,
MOD_USER TYPE STRING,
MOD_DATE TYPE STRING,
ACT_TRKORR TYPE STRING,
MOD_TRKORR TYPE STRING,
STD_TRKORR TYPE STRING,
SRCSYSTEM TYPE STRING,
ADDITIONAL_INFO TYPE STRING,
IS_ACCESSED TYPE STRING,
IS_USED TYPE STRING,
BOTTOM_UP_EXEC TYPE STRING,
HAS_EQUAL_VERS TYPE STRING,
HAS_INACTIVE TYPE STRING,
HAS_NO_REF TYPE STRING,
HAS_EQUAL_DOM TYPE STRING,
HAS_SYNTAX_ERROR TYPE STRING,
TRKORR_NR TYPE STRING,
TABLE_COUNT TYPE STRING,
CAUSED_DUMP TYPE STRING,
STATUS TYPE STRING,
PROCESSOR TYPE STRING,
STATUS_TEXT TYPE STRING,
STATUS_USER TYPE STRING,
STATUS_DATE TYPE STRING,
STATUS_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVCDOPCA_OBJS_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_CNVCDOPCA_OBJS_STR-PROJ_ID sy-vline 
WA_CNVCDOPCA_OBJS_STR-SYSID sy-vline 
WA_CNVCDOPCA_OBJS_STR-OBJ_TYPE sy-vline 
WA_CNVCDOPCA_OBJS_STR-OBJ_NAME sy-vline 
WA_CNVCDOPCA_OBJS_STR-SUB_TYPE sy-vline 
WA_CNVCDOPCA_OBJS_STR-SUB_NAME sy-vline 
WA_CNVCDOPCA_OBJS_STR-OPERATION sy-vline 
WA_CNVCDOPCA_OBJS_STR-OPER_COUNT sy-vline 
WA_CNVCDOPCA_OBJS_STR-OPER_NAME sy-vline 
WA_CNVCDOPCA_OBJS_STR-OBJ_NAMESPACE sy-vline 
WA_CNVCDOPCA_OBJS_STR-DEVCLASS sy-vline 
WA_CNVCDOPCA_OBJS_STR-DEVCL_TEXT sy-vline 
WA_CNVCDOPCA_OBJS_STR-APPL_COMP sy-vline 
WA_CNVCDOPCA_OBJS_STR-APPL_COMP_TEXT sy-vline 
WA_CNVCDOPCA_OBJS_STR-SUB_TEXT sy-vline 
WA_CNVCDOPCA_OBJS_STR-MOD_USER sy-vline 
WA_CNVCDOPCA_OBJS_STR-MOD_DATE sy-vline 
WA_CNVCDOPCA_OBJS_STR-ACT_TRKORR sy-vline 
WA_CNVCDOPCA_OBJS_STR-MOD_TRKORR sy-vline 
WA_CNVCDOPCA_OBJS_STR-STD_TRKORR sy-vline 
WA_CNVCDOPCA_OBJS_STR-SRCSYSTEM sy-vline 
WA_CNVCDOPCA_OBJS_STR-ADDITIONAL_INFO sy-vline 
WA_CNVCDOPCA_OBJS_STR-IS_ACCESSED sy-vline 
WA_CNVCDOPCA_OBJS_STR-IS_USED sy-vline 
WA_CNVCDOPCA_OBJS_STR-BOTTOM_UP_EXEC sy-vline 
WA_CNVCDOPCA_OBJS_STR-HAS_EQUAL_VERS sy-vline 
WA_CNVCDOPCA_OBJS_STR-HAS_INACTIVE sy-vline 
WA_CNVCDOPCA_OBJS_STR-HAS_NO_REF sy-vline 
WA_CNVCDOPCA_OBJS_STR-HAS_EQUAL_DOM sy-vline 
WA_CNVCDOPCA_OBJS_STR-HAS_SYNTAX_ERROR sy-vline 
WA_CNVCDOPCA_OBJS_STR-TRKORR_NR sy-vline 
WA_CNVCDOPCA_OBJS_STR-TABLE_COUNT sy-vline 
WA_CNVCDOPCA_OBJS_STR-CAUSED_DUMP sy-vline 
WA_CNVCDOPCA_OBJS_STR-STATUS sy-vline 
WA_CNVCDOPCA_OBJS_STR-PROCESSOR sy-vline 
WA_CNVCDOPCA_OBJS_STR-STATUS_TEXT sy-vline 
WA_CNVCDOPCA_OBJS_STR-STATUS_USER sy-vline 
WA_CNVCDOPCA_OBJS_STR-STATUS_DATE sy-vline 
WA_CNVCDOPCA_OBJS_STR-STATUS_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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