ABAP Select data from SAP table CNVCDMCUCIA_DDREFSTRUC into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCDMCUCIA_DDREFSTRUC
*  INTO TABLE @DATA(IT_CNVCDMCUCIA_DDREFSTRUC2).
*--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_CNVCDMCUCIA_DDREFSTRUC INDEX 1 INTO DATA(WA_CNVCDMCUCIA_DDREFSTRUC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CNVCDMCUCIA_DDREFSTRUC ASSIGNING <CNVCDMCUCIA_DDREFSTRUC>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCDMCUCIA_DDREFSTRUC>-STATE = 1.
<CNVCDMCUCIA_DDREFSTRUC>-BOOL = 1.
<CNVCDMCUCIA_DDREFSTRUC>-SYMBOL = 1.
<CNVCDMCUCIA_DDREFSTRUC>-CLASS = 1.
<CNVCDMCUCIA_DDREFSTRUC>-MODE = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCDMCUCIA_DDREFSTRUC-TRACE, sy-vline,
WA_CNVCDMCUCIA_DDREFSTRUC-FLAG, sy-vline,
WA_CNVCDMCUCIA_DDREFSTRUC-NODIR21, sy-vline,
WA_CNVCDMCUCIA_DDREFSTRUC-STATIST, sy-vline,
WA_CNVCDMCUCIA_DDREFSTRUC-DDFUNC, sy-vline,
WA_CNVCDMCUCIA_DDREFSTRUC-RSDEVICE, sy-vline.
ENDLOOP. *Add any further fields from structure WA_CNVCDMCUCIA_DDREFSTRUC 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_CNVCDMCUCIA_DDREFSTRUC 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_CNVCDMCUCIA_DDREFSTRUC INTO WA_CNVCDMCUCIA_DDREFSTRUC. *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_CNVCDMCUCIA_DDREFSTRUC_STR,
STATE TYPE STRING,
BOOL TYPE STRING,
SYMBOL TYPE STRING,
CLASS TYPE STRING,
MODE TYPE STRING,
TRACE TYPE STRING,
FLAG TYPE STRING,
NODIR21 TYPE STRING,
STATIST TYPE STRING,
DDFUNC TYPE STRING,
RSDEVICE TYPE STRING,
SEVERITY TYPE STRING,
GENBBFUNC TYPE STRING,
CALL_MODE TYPE STRING,
OBJLIST TYPE STRING,
TBATGUSER TYPE STRING,
TBATGOBJEC TYPE STRING,
CNV_ORDER TYPE STRING,
AUTH_CHK TYPE STRING,
LANGUDEP TYPE STRING,
DELALL TYPE STRING,
DELNOREF TYPE STRING,
BUFALLOW TYPE STRING,
BUFFKIND TYPE STRING,
07V_TXT TYPE STRING,
TRANSL TYPE STRING,
TRANSPTXT TYPE STRING,
BUF_INICAT TYPE STRING,
PARA_GRADE TYPE STRING,
DISTRIBUT TYPE STRING,
PROC_CLASS TYPE STRING,
SYNC_CLASS TYPE STRING,
PART_CLASS TYPE STRING,
DBLEN TYPE STRING,
MESSAGE TYPE STRING,
DDDATE TYPE STRING,
DDTIME TYPE STRING,
DDCRUCNT TYPE STRING,
CLI_ADD_TYPE TYPE STRING,
COM_SIZE TYPE STRING,END OF T_EKKO_STR. DATA: WA_CNVCDMCUCIA_DDREFSTRUC_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_CNVCDMCUCIA_DDREFSTRUC_STR-STATE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-BOOL sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-SYMBOL sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-CLASS sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-MODE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-TRACE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-FLAG sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-NODIR21 sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-STATIST sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DDFUNC sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-RSDEVICE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-SEVERITY sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-GENBBFUNC sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-CALL_MODE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-OBJLIST sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-TBATGUSER sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-TBATGOBJEC sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-CNV_ORDER sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-AUTH_CHK sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-LANGUDEP sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DELALL sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DELNOREF sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-BUFALLOW sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-BUFFKIND sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-07V_TXT sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-TRANSL sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-TRANSPTXT sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-BUF_INICAT sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-PARA_GRADE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DISTRIBUT sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-PROC_CLASS sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-SYNC_CLASS sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-PART_CLASS sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DBLEN sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-MESSAGE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DDDATE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DDTIME sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-DDCRUCNT sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-CLI_ADD_TYPE sy-vline
WA_CNVCDMCUCIA_DDREFSTRUC_STR-COM_SIZE sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.