database backup error

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I was created a .mdf database file with vs 2010. I can retreive and insert data into database but when i want to backup error was handled. that database not attach in Management Studio.

my Code :

C#

SqlConnection connect;
connect = new SqlConnection(DAL.AccessLayerClass._connectionStr);
connect.Open();
SqlCommand command;
command = new SqlCommand(@"backup database AGMDB to disk ='d:\svBackUp1.bak' with init,stats=10",connect);
command.ExecuteNonQuery();
connect.Close();
MessageBox.Show("The support of the database was successfully performed", "Back", MessageBoxButtons.OK, MessageBoxIcon.Information);

my connection string is:

C#

string _connectionStr = "Data Source=.\\SQLEXPRESS; AttachDbFilename=" + System.Windows.Forms.Application.StartupPath + "\\Database\\AGMDB.mdf; Integrated Security=True; Connect Timeout=30; User Instance=True;";

and the error occured is :

Could not locate entry in sysdatabases for database 'AGMDB'. No entry found with that name. Make sure that the name is entered correctly.
BACKUP DATABASE is terminating abnormally.

how can i solve this problem ????

Posted 29-Oct-12 22:35pm

Harpreet_125

Updated 30-Oct-12 1:55am

Sushil Mate

v2

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KanetiyaNik · Answer 1 · 2012-10-29T22:40:00

Its very simple when you connection string like Data Source=.\\SQLEXPRESS; AttachDbFilename=" + System.Windows.Forms.Application.StartupPath + "\\Database\\AGMDB.mdf; Integrated Security=True; Connect Timeout=30; User Instance=True;

your databse is not attch as name of AGMDB.mdf but its name will be path + "AGMDB.mdf" So solution is very simple in your code
command = new SqlCommand(@"backup database AGMDB to disk ='d:\svBackUp1.bak' with init,stats=10",connect);

replace
AGMDB with System.Windows.Forms.Application.StartupPath + "\\AGMDB.mdf"...Gud luck

KanetiyaNik · Answer 2 · 2012-10-30T00:40:00

C#

String DbPath = System.Windows.Forms.Application.StartupPath+"\\AGMDB.mdf";
command = new SqlCommand(@"backup database "+ DbPath +" to disk ='d:\svBackUp1.bak' with init,stats=10",connect);

or use can use

C#

command = new SqlCommand("backup DataBase "+DbPath +" to
disk = 'd:\svBackUp1.bak' with noformat, noinit, name = 'AGMDB',
skip,norewind,nounload,stats=10")

harshal999 · Answer 3 · 2013-06-15T19:38:00

SqlConnection cn = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=D:\jaydip\WindowsFormsApplication1\WindowsFormsApplication1\Database1.mdf;Integrated Security=True;User Instance=True");
cn.Open();
MessageBox.Show(System.Windows.Forms.Application.StartupPath);
SqlCommand cmd = new SqlCommand(@"backup database [" + System.Windows.Forms.Application.StartupPath + "\\Database1.mdf] to disk ='d:\\svBackUp1.bak' with init,stats=10", cn);

cmd.ExecuteNonQuery();
cn.Close();
MessageBox.Show("Database Backup Successfull.");

//this solution 100% works...

database backup error

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