How to use memory stream with asbcd.

[loaded]

Hi All,
There is a database that I created using Postgresql, in this database;

Code: Pascal  [Select][+][-]

1. 'DOC BYTEA,'

I have a blob column that I have defined, in this column I intend to store binary data to files.
Using opendialog, I transfer the file I selected to MemoryStream, then the SQL query is set to the parameter value.

Code: Pascal  [Select][+][-]

1.  var
2. fc,fof:TMemoryStream;
3. ....
4. DataModule1.ZQuery_CRecord.SQL.Clear;
5. DataModule1.ZQuery_CRecord.SQL.Add(
6.         ' UPDATE '+ table_name+ ' SET '+
7.         ' DOC '+
8.         '=:DOC WHERE ID=:ID;'
9.         );
10.         DataModule1.ZQuery_CRecord.Params.ParamByName('ID').AsString:=DataModule1.ZQuery_VZ.FieldByName('id').AsString;
11.         DataModule1.ZQuery_CRecord.Params.ParamByName('DOC').LoadFromStream(fc,ftBlob);
12.         DataModule1.ZQuery_CRecord.ExecSQL;  
13.  

I transfer it in the form and save it in the relevant database. No problem, I'm coming here.

But by making a change; This process is not with the sql query, but directly in the field of the sql query;
I want to transfer the memory stream to the

Code: Pascal  [Select][+][-]

1. ZQuery.FieldByName('DOC').AsBCD:=how to use fc;

feature, is it possible?
I would be very grateful if you could help. Regards.