ABAP Select data from SAP table CNVCDMC_SAITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCDMC_SAITEM
*  INTO TABLE @DATA(IT_CNVCDMC_SAITEM2).
*--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_CNVCDMC_SAITEM INDEX 1 INTO DATA(WA_CNVCDMC_SAITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCDMC_SAITEM>-TYPE = 1.
<CNVCDMC_SAITEM>-ID = 1.
<CNVCDMC_SAITEM>-EXT_ID = 1.
<CNVCDMC_SAITEM>-URL_TYPE = 1.
<CNVCDMC_SAITEM>-NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCDMC_SAITEM-SPRAS, sy-vline,
  WA_CNVCDMC_SAITEM-NODE_TYPE, sy-vline,
  WA_CNVCDMC_SAITEM-NODE_ID, sy-vline,
  WA_CNVCDMC_SAITEM-TREE_ID, sy-vline,
  WA_CNVCDMC_SAITEM-FORCE_PLUS, sy-vline,
  WA_CNVCDMC_SAITEM-LOG_STR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVCDMC_SAITEM 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_CNVCDMC_SAITEM 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_CNVCDMC_SAITEM INTO WA_CNVCDMC_SAITEM.


*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_CNVCDMC_SAITEM-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVCDMC_SAITEM-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROJECT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CNVCDMC_SAITEM-PROJECT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CNVCDMC_SAITEM-PROJECT_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_CNVCDMC_SAITEM_STR, 
TYPE TYPE STRING,
ID TYPE STRING,
EXT_ID TYPE STRING,
URL_TYPE TYPE STRING,
NAME TYPE STRING,
SPRAS TYPE STRING,
NODE_TYPE TYPE STRING,
NODE_ID TYPE STRING,
TREE_ID TYPE STRING,
FORCE_PLUS TYPE STRING,
LOG_STR TYPE STRING,
COMPONENT TYPE STRING,
SYSTEMINST TYPE STRING,
PRDVERSFR TYPE STRING,
PRDVERSTO TYPE STRING,
IN_SCOPE TYPE STRING,
IS_DEFAULT TYPE STRING,
COPY_NODE TYPE STRING,
COPY_TREE TYPE STRING,
COPNODFRST TYPE STRING,
COPTREFRST TYPE STRING,
CNODFRST_L TYPE STRING,
CNODFRST_N TYPE STRING,
ORIGIN TYPE STRING,
DLOCKFLAG TYPE STRING,
COPREFFLG TYPE STRING,
AREA_ID TYPE STRING,
AREA_NAME TYPE STRING,
KEYFUN_ID TYPE STRING,
KEYFUNNAME TYPE STRING,
PROC_GROUP_ID TYPE STRING,
SUPPORT TYPE STRING,
PRIO TYPE STRING,
NODE TYPE STRING,
INPCHK_ID TYPE STRING,
SKEY TYPE STRING,
PRODUCT TYPE STRING,
COMPHANDLE TYPE STRING,
GLATT TYPE STRING,
IGNORE_GLATT TYPE STRING,
TEMPHANDLE TYPE STRING,
GLATTCHNGD TYPE STRING,
REF_GUID TYPE STRING,
REF_NAME TYPE STRING,
CONFIG_ID TYPE STRING,
ATTR_STATUS_1 TYPE STRING,
ATTR_STATUS_2 TYPE STRING,
ATTR_LOG_ID TYPE STRING,
ATTR_USER TYPE STRING,
ATTR_USER_2 TYPE STRING,
ATTR_DATE TYPE STRING,
ATTR_TIME TYPE STRING,
ATTR_STATUS_3 TYPE STRING,
PRODUCT_INSTANCE TYPE STRING,
OLD_COMPONENT TYPE STRING,
SCRTEXT TYPE STRING,
DESCRIPT TYPE STRING,
COPYHANDLE TYPE STRING,
PROJECT_ID TYPE STRING,
TEMPLATES TYPE STRING,
DIR_OBJNO TYPE STRING,
DIR_DATA_HANDLE TYPE STRING,
DIR_STATUS TYPE STRING,
DIR_PROCESSINGTYPE TYPE STRING,
DIR_AVAILABILITY TYPE STRING,
DIR_INHERIT_STATUS TYPE STRING,
DIR_PROCESSTYPE TYPE STRING,
BIZC_CHANGED TYPE STRING,
CNODFRST_L_CHECK_IN TYPE STRING,
CNODFRST_N_CHECK_IN TYPE STRING,
ORIGIN_CHECK_IN TYPE STRING,
CHECK_IN_NEW_OBJECT TYPE STRING,
SOURCE_LC TYPE STRING,
TARGET_LC TYPE STRING,
IF_TYPE TYPE STRING,
IF_TECH TYPE STRING,
INDUSTRY_FLAG TYPE STRING,
STRUCT_STATUS TYPE STRING,
PROJ_BPR_LINK TYPE STRING,
BPR_SORT1 TYPE STRING,
BF_NODE_TYPE TYPE STRING,
BF_HANDLE TYPE STRING,
TC_TARGET_COMP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVCDMC_SAITEM_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_CNVCDMC_SAITEM_STR-TYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-ID sy-vline 
WA_CNVCDMC_SAITEM_STR-EXT_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-URL_TYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-NAME sy-vline 
WA_CNVCDMC_SAITEM_STR-SPRAS sy-vline 
WA_CNVCDMC_SAITEM_STR-NODE_TYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-NODE_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-TREE_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-FORCE_PLUS sy-vline 
WA_CNVCDMC_SAITEM_STR-LOG_STR sy-vline 
WA_CNVCDMC_SAITEM_STR-COMPONENT sy-vline 
WA_CNVCDMC_SAITEM_STR-SYSTEMINST sy-vline 
WA_CNVCDMC_SAITEM_STR-PRDVERSFR sy-vline 
WA_CNVCDMC_SAITEM_STR-PRDVERSTO sy-vline 
WA_CNVCDMC_SAITEM_STR-IN_SCOPE sy-vline 
WA_CNVCDMC_SAITEM_STR-IS_DEFAULT sy-vline 
WA_CNVCDMC_SAITEM_STR-COPY_NODE sy-vline 
WA_CNVCDMC_SAITEM_STR-COPY_TREE sy-vline 
WA_CNVCDMC_SAITEM_STR-COPNODFRST sy-vline 
WA_CNVCDMC_SAITEM_STR-COPTREFRST sy-vline 
WA_CNVCDMC_SAITEM_STR-CNODFRST_L sy-vline 
WA_CNVCDMC_SAITEM_STR-CNODFRST_N sy-vline 
WA_CNVCDMC_SAITEM_STR-ORIGIN sy-vline 
WA_CNVCDMC_SAITEM_STR-DLOCKFLAG sy-vline 
WA_CNVCDMC_SAITEM_STR-COPREFFLG sy-vline 
WA_CNVCDMC_SAITEM_STR-AREA_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-AREA_NAME sy-vline 
WA_CNVCDMC_SAITEM_STR-KEYFUN_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-KEYFUNNAME sy-vline 
WA_CNVCDMC_SAITEM_STR-PROC_GROUP_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-SUPPORT sy-vline 
WA_CNVCDMC_SAITEM_STR-PRIO sy-vline 
WA_CNVCDMC_SAITEM_STR-NODE sy-vline 
WA_CNVCDMC_SAITEM_STR-INPCHK_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-SKEY sy-vline 
WA_CNVCDMC_SAITEM_STR-PRODUCT sy-vline 
WA_CNVCDMC_SAITEM_STR-COMPHANDLE sy-vline 
WA_CNVCDMC_SAITEM_STR-GLATT sy-vline 
WA_CNVCDMC_SAITEM_STR-IGNORE_GLATT sy-vline 
WA_CNVCDMC_SAITEM_STR-TEMPHANDLE sy-vline 
WA_CNVCDMC_SAITEM_STR-GLATTCHNGD sy-vline 
WA_CNVCDMC_SAITEM_STR-REF_GUID sy-vline 
WA_CNVCDMC_SAITEM_STR-REF_NAME sy-vline 
WA_CNVCDMC_SAITEM_STR-CONFIG_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_STATUS_1 sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_STATUS_2 sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_LOG_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_USER sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_USER_2 sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_DATE sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_TIME sy-vline 
WA_CNVCDMC_SAITEM_STR-ATTR_STATUS_3 sy-vline 
WA_CNVCDMC_SAITEM_STR-PRODUCT_INSTANCE sy-vline 
WA_CNVCDMC_SAITEM_STR-OLD_COMPONENT sy-vline 
WA_CNVCDMC_SAITEM_STR-SCRTEXT sy-vline 
WA_CNVCDMC_SAITEM_STR-DESCRIPT sy-vline 
WA_CNVCDMC_SAITEM_STR-COPYHANDLE sy-vline 
WA_CNVCDMC_SAITEM_STR-PROJECT_ID sy-vline 
WA_CNVCDMC_SAITEM_STR-TEMPLATES sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_OBJNO sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_DATA_HANDLE sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_STATUS sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_PROCESSINGTYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_AVAILABILITY sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_INHERIT_STATUS sy-vline 
WA_CNVCDMC_SAITEM_STR-DIR_PROCESSTYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-BIZC_CHANGED sy-vline 
WA_CNVCDMC_SAITEM_STR-CNODFRST_L_CHECK_IN sy-vline 
WA_CNVCDMC_SAITEM_STR-CNODFRST_N_CHECK_IN sy-vline 
WA_CNVCDMC_SAITEM_STR-ORIGIN_CHECK_IN sy-vline 
WA_CNVCDMC_SAITEM_STR-CHECK_IN_NEW_OBJECT sy-vline 
WA_CNVCDMC_SAITEM_STR-SOURCE_LC sy-vline 
WA_CNVCDMC_SAITEM_STR-TARGET_LC sy-vline 
WA_CNVCDMC_SAITEM_STR-IF_TYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-IF_TECH sy-vline 
WA_CNVCDMC_SAITEM_STR-INDUSTRY_FLAG sy-vline 
WA_CNVCDMC_SAITEM_STR-STRUCT_STATUS sy-vline 
WA_CNVCDMC_SAITEM_STR-PROJ_BPR_LINK sy-vline 
WA_CNVCDMC_SAITEM_STR-BPR_SORT1 sy-vline 
WA_CNVCDMC_SAITEM_STR-BF_NODE_TYPE sy-vline 
WA_CNVCDMC_SAITEM_STR-BF_HANDLE sy-vline 
WA_CNVCDMC_SAITEM_STR-TC_TARGET_COMP sy-vline      INTO ld_text SEPARATED BY SPACE.

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