SQL Server：备份错误

Question

When we are trying to backup our database we get an error.

Front End         : VB.Net
Back End          : SQL Server
DB Name           : PROFITSTORAGE
Backup Location   : 'D:\Profit\Data\ProfitStorage.Bak'

Code: Dim con As New SqlConnection Dim query As SqlCommand

    Try
        con.ConnectionString = "Server=(LocalHost);Data Source=LocalHost\SQLEXPRESS;Integrated Security=SSPI"
        con.Open()
        query = con.CreateCommand
        query.CommandText = "BACKUP DATABASE PROFITSTORAGE TO DISK='D:\Profit\Data\ProfitStorage.bak' WITH INIT"
        query.ExecuteNonQuery()
        query.Dispose()
        con.Close()
    Catch ex As Exception
        MsgBox(ex.Message, MsgBoxStyle.Exclamation, "Backup Failed")
    End Try

Query used :

BACKUP DATABASE PROFITSTORAGE 
TO DISK='D:\Profit\Data\ProfitStorage.bak' WITH INIT

Error Message :

Cannot open backup device 'D:\\Profit\\Data\\ProfitStorage.bak'. Operating system error 3 (failed to retrieve text for this error. Reason: 15105).
BACKUP DATABASE is terminating abnormally.

How to sort out this issue?

Answer 1

The query is not creating the folder if its not existing.
We should create a folder manually instead.
Since we are using VB.Net we had to create a folder with the following code before backup:

                My.Computer.FileSystem.CreateDirectory("D:\Profit\Data\")