Zeoslib Portal

I have no idea to do .
my solution:
1、add a bool field to table default false.
2、read the bool field first.if true then zquery.property.add('OldBLOB=true').if false do nothing.
3、read the blobdata
4、save the blob to a file
5、update the field use the file and change the bool field to true.

MARK
My pool english...hehe...i will contact you on MSN.
wwywt.

emm.. i found may be the problem is caused by an ansistring convert to a string. see my test demo in delphi2010. function StreamToString(mStream: TStream): AnsiString; var I: Integer; begin Result := ''; if not Assigned(mStream) then Exit; SetLength(Result, mStream.Size); for I := 0 to Pred(mStream....

i found the same function encodingstring get the different result between delphi2007 and delphi2010 . i think it maybe the reson of cause write old data error. i'm still try to solve it. if i have a solution i will post to here.

i think if we can found a functionin delphi2010 which result is the same with the function Encodingstring. then we can solve the problem of write old vision blob data. function EncodeString(Value: string): string; var I: Integer; SrcLength, DestLength: Integer; SrcBuffer, DestBuffer: PAnsiChar; begi...

i have solve the problem of reading old vision of blob data. it need test.it's my code; ZDbcSqLiteResultSet.pas TZSQLiteResultSet = class(TZAbstractResultSet) private FInfo:TStrings; public constructor Create(PlainDriver: IZSQLitePlainDriver; Statement: IZStatement; SQL: string; Handle: Psqlite; Stm...

i get the same problem
my data blob written with delphi2007
now i must read it with delphi2010...

I got the same problem
blob field write by a zlib old version and delphi2007
now i want to read this data with zlib7 and delphi2010
how can i do ?

first sorry for my english I'M A Chinese i have a database created on delphi2007 with zeoslib i saved an icon file in then 'Icon' field(blob). when i try to read then icon field with delphi2010+zeoslib 7.0 i got a error. this is my code: procedure TForm1.ReadClick(Sender: TObject); begin ZConnection...