whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1541)

Database (90)
Files (137)
Forms (107)
Graphic (114)
IDE (21)
Indy (5)
Internet / LAN (130)
IntraWeb (0)
Math (76)
Misc (126)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (266)
VCL (242)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

42 Visitors Online


 
...read a BlobStream with TADOQuery from an AccessDB?
Autor: peppa
[ Print tip ]  

Tip Rating (6):  
     


function GetBlobStream(Query: TADOQuery): TMemoryStream;
begin
  
result := TMemoryStream.Create;

  // You must connect to AccessDB first.
  // See: Query.Connection, TADOConection or Query.ConnectString

  // Send SQL command
  
Query.Active := False;
  Query.SQL.Clear;
  // data is my row and email the table
  
Query.SQL.Append('SELECT data FROM email WHERE id=1');
  Query.Active := True;

  Result.LoadFromStream(Query.CreateBlobStream(Query.FieldByName('Data'), bmRead));
end;

 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners