Problem saving file to MySQL - Database Discussion Boards

jschell24-Jul-12 7:16

24-Jul-12 7:16

Based on your other responses.

You have the following code
1. SQL
2. Calling code.

In a previous statement it appears that you cannot modify 2.

So that means you MUST modify 1 such that it returns the value that you want.

Thus for example you can structure a stored proc such that if there are no results, which you check for, then you return zero. (That means you write the code to do just that.)

SET NOCOUNT

Member 348763223-Jul-12 22:15

Member 3487632

23-Jul-12 22:15

How to do SET NOCOUNT ON at database level or at server level

Thanks in advance

Re: SET NOCOUNT

Wayne Gaylard23-Jul-12 23:06

Wayne Gaylard

23-Jul-12 23:06

There is no option to turn this on for a particular database on the server. You can turn this off for the whole server <var>Properties > Connections > No Count checkbox</var>.

When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman

Re: SET NOCOUNT

Member 348763223-Jul-12 23:09

Member 3487632

23-Jul-12 23:09

Hi Even then rows effected i'm getting -1 in select statement .

What i'm observing is that when i put SET NOCOUNT ON before sql statement even then it is returning -1. I guess it shud return 0 .

I'm having sql server 2005 . Please help.
Thanks

Increasing the session existing time in sql server

yousefshokati20-Jul-12 22:29

yousefshokati

20-Jul-12 22:29

Hi .
I want to know how can i increase the session existence time in SQL server. I have a software that uses a connection to SQL server . when it remains idle for some minutes then the new session will be created to SQL server from the application side . This produces me me a big problem . Because i use the connection_Id for auditing the user . in my login table i have applicationID that refers to connection_Id in sys.dm_exec_connections .
when the software authenticates the user , It updates the connection_ID in login table and through this column i can get my user's username in my triggers .
here is the problem
when my software becomes idle , then another connection_id is created and i can not trace my user because i can not reach my user in logins table
this is my login table

CREATE TABLE [dbo].[Logins](
	[LoginUser] [nvarchar](50) NOT NULL ,
	[Password] [nvarchar](50) NOT NULL,
	[IsDefaultPassword] [int] NULL,
	[AppID] [uniqueidentifier] NULL,
 CONSTRAINT [PK_Logins] PRIMARY KEY CLUSTERED 
(
	[LoginUser] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

and this is my authenticate procedure

CREATE PROCEDURE [dbo].[Authenticate] (@username nvarchar(30) , @password nvarchar(30))
AS
   declare @Authenticated int 
    set @Authenticated = 0
 
   
   select  @Authenticated = 1  
   from Logins l
   where l.LoginUser =@username and l.Password =@password 
   
   if @Authenticated = 1 
     begin;
        declare @AppID uniqueidentifier 
        select @AppID=p.connection_id from sys.dm_exec_connections p 
        where p.session_id = @@SPID 
        update Logins 
        set AppID = @AppID 
        where Logins.LoginUser = @username and Logins.Password = @password
     end; 

   select @Authenticated ,@AppID

Re: Increasing the session existing time in sql server

Eddy Vluggen21-Jul-12 7:57

Eddy Vluggen

21-Jul-12 7:57

yousefshokati wrote:
when my software becomes idle , then another connection_id is created

Easiest way out is to not create a new connection, but re-use the existing one. Otherwise, keep the Id around in a variable after your first connect, and pass it as a param on the idle-connection.

Bastard Programmer from Hell Suspicious | :suss:

if you can't read my code, try converting it here[^]

Re: Increasing the session existing time in sql server

jschell21-Jul-12 11:46

jschell

21-Jul-12 11:46

yousefshokati wrote:
This produces me me a big problem

Increasing session timeout so you can track users is unlikely to ever be a good idea.

As one example exactly what do you think is going to happen to your system if a 'user' goes on vacation for two weeks but that user remains logged in?

Also it appears that you are attempting to manage permissions by user rather than role. And that is going to become a problem with more than a couple of users.

Problem saving file to MySQL

Jassim Rahma20-Jul-12 21:27

Jassim Rahma

20-Jul-12 21:27

I am using this code to save file to MySQL but when I try to open the file after saving it I get an error saying:

Word was unable to read this document. It may be corrupt.

here is the code to write:

file_name = Path.GetFileName(uploadResume.PostedFile.FileName);
file_extension = Path.GetExtension(uploadResume.PostedFile.FileName);

switch (file_extension)
{
case ".pdf": document_type = "application/pdf"; break;
case ".doc": document_type = "application/vnd.ms-word"; break;
case ".docx": document_type = "application/vnd.ms-word"; break;
case ".gif": document_type = "image/gif"; break;
case ".png": document_type = "image/png"; break;
case ".jpg": document_type = "image/jpg"; break;
case ".jpeg": document_type = "image/jpg"; break;
}

// calculate size of file;
int file_size = uploadResume.PostedFile.ContentLength;

// create array to read the file into it;
byte[] document_binary = new byte[file_size];
uploadResume.PostedFile.InputStream.Read(document_binary, 0, file_size);

and then passing it as parameters:

sql_command.Parameters.AddWithValue("param_resume_format", document_type).MySqlDbType = MySqlDbType.VarChar;
sql_command.Parameters.Add("param_resume_data", MySqlDbType.Blob, file_size).Value = document_binary;

and here is how I am retrieving it:

sql_connection = new MySqlConnection(ConfigurationManager.ConnectionStrings["SQLdb"].ConnectionString);
sql_connection.Open();
sql_command = new MySqlCommand("sp_get_resume_by_id", sql_connection);
sql_command.CommandType = CommandType.StoredProcedure;
sql_command.Parameters.Add("param_resume_id", MySqlDbType.Int32).Value = resume_id;
sql_reader = sql_command.ExecuteReader();
sql_reader.Read();

if (sql_reader.HasRows)
{
file_name = sql_reader["resume_id"].ToString() + sql_reader["resume_ext"].ToString();
byte[] document_binary = (byte[])sql_reader["resume_data"];

FileStream file_stream = new FileStream(@"C:\Temp\" + file_name, FileMode.Create);
file_stream.Write(document_binary, 0, document_binary.Length);
file_stream.Close();
file_stream.Dispose();

txtResume.Visible = true;
}