Microsoft SQL Server Login Failed Error 4064 [Resolved]

What is SQL Server Error 4064?

This error happens when the user database is set to the default database. When the user attempts to log in and find that the default database is dropped, then this error is shown as if the user “abcd” tries to log in to the database but fails as the database is set as default.

Lets us know the causes behind this type of error.

Valid Reasons for SQL Server error-

If the database is in suspect mode or the database is no longer exists. Then this blunder can take place. It is also possible that the SQL database has been set to the RESTRICTED_USER state. The database could be offline as well. If a user does not have the login account mapped, or the user has been denied access, then this error can also take place.

How to Get Rid of SQL Server Error 4064?

To get rid of the “Cannot open default user database login failed” error, different techniques need to be used depending on the server setting. There are manual methods explained below to solve database error. Then manual methods are only applicable for SQL Server 2005 and its later version. So, those users who are using the SQL server 2005 and its later version should follow the below methods.

There are two manual methods that quickly resolve this error:

1. Use SQLCMD to Modify Default Database
2. Use the GUI to Change Default Database
3. Rectify Issues with Sysinfotools SQL Recovery

Method 1: Use SQLCMD to Modify Default Database

SQLCMD utility is used to modify the default database in SQL Server. So, to do this, follow the steps that are shown below:

• The first step is to click on Start and type Run in the search field.
• Then in the Run dialog box type cmd, and hit Enter.
• Deploy any of the techniques in the command prompt according to the sort of SQL Server login authentication you prefer:
• For Microsoft Windows authentication, Type this command “sqlcmd E -S InstanceName d master”
• For SQL Server authentication, Type this following command “Sqlcmd -S InstanceName -d master -U SQLLogin -P Password”

Then type the below-mentioned command in sqlcmd prompt and then hit the Enter key:

ALTER LOGIN SQLLogin WITH DEFAULT_DATABASE= AvailDBName

Where AvailDBName shows the database name that already exists. This database can further be used by the login of SQL Server while synchronizing with SQL database.

Method 2: Use the GUI to Change Default Database

1. First, open the SQL Server 2005 login page and then click on Options.
2. Next, modify the Connect to database status with the help of existing databases such as Master.
3. At last, click on connect.

Method 3: Solve Error with SQL Database Recovery

You can follow the above important methods one by one to solve the database error. If you are facing some issues with manual methods there is another best way to get rid of this issue is SQL Database Recovery.

This software recovers quickly helps in removing the SQL server error. Let us discuss some important features of SQL Data recovery:

• Recovers file objects including tables, stored procedures, views,  programmability, triggers, default, and functions.
• Corrupt MDF and NDF files of SQL Server database can be repaired by this.
• It can save recovered data either in SQL Server database format.
• The preview option is there to review the data before saving.

Last words

Manual and a direct method has been explained above to move out from the SQL Server error 4064. Users can use any of the above methods but if someone wants to resolve the issue quickly can opt for the direct method. As you don’t need to identify the corruption of SQL data manually, this tool will automatically solve your issue and you can easily recover corrupted MySQL Database.