ABAP Select data from SAP table CNVA_CCD_ANA_SHD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVA_CCD_ANA_SHD
*  INTO TABLE @DATA(IT_CNVA_CCD_ANA_SHD2).
*--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_CNVA_CCD_ANA_SHD INDEX 1 INTO DATA(WA_CNVA_CCD_ANA_SHD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVA_CCD_ANA_SHD>-MANDT = 1.
<CNVA_CCD_ANA_SHD>-ANALYSISID = 1.
<CNVA_CCD_ANA_SHD>-PCLPACKID = 1.
<CNVA_CCD_ANA_SHD>-DESCR = 1.
<CNVA_CCD_ANA_SHD>-RFC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVA_CCD_ANA_SHD-SYSID, sy-vline,
  WA_CNVA_CCD_ANA_SHD-CLIENT, sy-vline,
  WA_CNVA_CCD_ANA_SHD-CREATEDBY, sy-vline,
  WA_CNVA_CCD_ANA_SHD-CREATEDATE, sy-vline,
  WA_CNVA_CCD_ANA_SHD-CREATETIME, sy-vline,
  WA_CNVA_CCD_ANA_SHD-CHANGEDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVA_CCD_ANA_SHD 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_CNVA_CCD_ANA_SHD 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_CNVA_CCD_ANA_SHD INTO WA_CNVA_CCD_ANA_SHD.


*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_CNVA_CCD_ANA_SHD_STR, 
MANDT TYPE STRING,
ANALYSISID TYPE STRING,
PCLPACKID TYPE STRING,
DESCR TYPE STRING,
RFC TYPE STRING,
SYSID TYPE STRING,
CLIENT TYPE STRING,
CREATEDBY TYPE STRING,
CREATEDATE TYPE STRING,
CREATETIME TYPE STRING,
CHANGEDATE TYPE STRING,
CHANGETIME TYPE STRING,
STEP_GUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVA_CCD_ANA_SHD_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_CNVA_CCD_ANA_SHD_STR-MANDT sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-ANALYSISID sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-PCLPACKID sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-DESCR sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-RFC sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-SYSID sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-CLIENT sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-CREATEDBY sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-CREATEDATE sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-CREATETIME sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-CHANGEDATE sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-CHANGETIME sy-vline 
WA_CNVA_CCD_ANA_SHD_STR-STEP_GUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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