blob of sql server

i use a dbimage item in delphi to insert into a image data in sql server, but it always tell me the "invalid blob length",

what's the problem

ws1999
ws1999Asked:
Who is Participating?
 
Mohammed NasmanSoftware DeveloperCommented:
if you are using the BDE to connect to sql server

1) go to the BDE Admin
2) click in your alias(sql server)
3) change the blob size to be more than 32kb, use value bigger than the image that u want to store in the database

if you still have problems, for storing images in database, use the Stream, specially if you are store not bitmap images (like jpg)

I made a simple project for storing images in the database, using the stream, I test it with oracle, paradox, ms access, without any change of the code

I post it in old question
http://www.experts-exchange.com/jsp/qShow.jsp?ta=delphi&qid=20145695

Best regards
Mohammed Nasman
0
 
jswebyCommented:
FAQ4271B

Question:
How come I'm getting the error "Invalid Blob Length" when
trying to post a blob to an ODBC datasource when the blob is greater than 1000000 bytes?

Answer:
This is a current limitation of the BDE ODBC driver. Native drivers do not have this limitation.


J.
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ws1999Author Commented:
hello mansman

still when i save jpg file ,the program will tell me "bitmap image invalid", it seems only bitmap can be saved here is my code:

if OpenPictureDialog1.Execute then
  with Table1 do
begin
  //Button1.Enabled := false;
  FileStream := TFileStream.Create(OpenPictureDialog1.FileName, fmOpenRead);
  Table1.Edit;
  BlobStream := TBlobStream(CreateBlobStream(FieldByName('ThumbImage'), bmWrite));
  BlobStream.Seek(0,soFromBeginning);
  BlobStream.Truncate;
  BlobStream.CopyFrom(FileStream,FileStream.Size);
  FileStream.Free;
  BlobStream.Free;
  Table1.Post;
  //ReadPicFromDB;
  //Button1.Enabled := True;
end;

what will be the problem?

worried ws1999

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Mohammed NasmanSoftware DeveloperCommented:
send me email, and  i will send you the full project
i tried it with oracle database, access, and paradox without any modification, just change the alias
send me email at nasman@mogaza.org
0
 
ws1999Author Commented:
wu_song@sohu.com
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ws1999:

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community support moderator

2/8
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MoondancerCommented:
Finalized
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