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I am using Delphi7 and MyDAC 4.30.0.12 14.04.06 to store sound files in a LONGBLOB field. The code is below:
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q := 'insert into tblsound (dtbegintime,dtendtime,szsector,sFacid,blobsound) ';
q := q + 'VALUES ';
q := q + '(:pdtbegintime,:pdtendtime,:pszsector,:psFacid,:pblobsound) ';
newsoundcommand.SQL.Text := q;
newsoundcommand.ParamByName('psFacid').Asstring := lfacEdit.text;
newsoundcommand.ParamByName('pszsector').Asstring := sectorcombobox1.text;
newsoundcommand.ParamByName('pdtbegintime').Asdatetime := G_StartTime;
newsoundcommand.ParamByName('pdtendtime').Asdatetime := G_EndTime;
newsoundcommand.ParamByName('pblobsound').DataType := ftBlob;
newsoundcommand.ParamByName('pblobsound').LoadFromfile(Mypath + '7Minutes.wma', ftBlob);
newsoundcommand.Execute;

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The 7Minutes.wma file is just over a 1Meg.

This code will Immediatly generate a error EMYSQLException ..."Lost Connection to Mysql server during query".... Socket Error on Write...WASGetLastError Return 10054....

I can use the same code with the file 6Minutes.wma (about 900K) and it works fine.

This code runs after the MySQLConnection is made.

I have set the MAX_ALLOWED_PACKET to 1GB in the MySQL Server and it still does not help


I sure could use some help on this

Thanks

I don't know if MAX_ALLOWED_PACKET 1GB is a valid value, but i'm sure with MAX_ALLOWED_PACKET = 16MB will work.

GHill wrote:I have set the MAX_ALLOWED_PACKET to 1GB in the MySQL Server and it still does not help

Have you checked this parameter if MySQL uses this value (SHOW VARIABLES)?