Unless otherwise specified, the default schema will be the owner of objects created by this database user. If the user has a default schema, that default schema will be used. If the user doesn't have a default schema, but the user is a member of a group that has a default schema, the default schema of the group will be used. If no default schema can be determined for a user, the dbo schema will be used.
All members of the sysadmin fixed server role have a default schema of dbo. You can change the name of a user who is mapped to a Windows login or group only when the SID of the new user name matches the SID that is recorded in the database.
This check helps prevent spoofing of Windows logins in the database. Users without a login, users mapped to a certificate, or users mapped to an asymmetric key can't be remapped with this clause. Only SQL users and Windows users or groups can be remapped. A mismatched SID can occur when you have restored a database from another server and have a database user mapped to a SQL Server login.
The name of the user will be automatically renamed to the login name if the following conditions are true. Beginning with SQL Server , the behavior of schemas changed. As a result, code that assumes that schemas are equivalent to database users may no longer return correct results. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science.
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Functional Functional. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Performance Performance. This option should only be used for login synchronization between two servers. The current password of the login to which a new password will be assigned. If this option is included, SQL Server will prompt for an updated password the first time the altered login is used.
Specifies whether password expiration policy should be enforced on this login. The default value is OFF. Specifies that the Windows password policies of the computer on which SQL Server is running should be enforced on this login. The default value is ON. The credential must already exist in the server. For more information, see Credentials. A credential cannot be mapped to the sa login. Specifies that a login that is locked out should be unlocked.
Otherwise, the statement will fail. In SQL Database, login data required to authenticate a connection and server-level firewall rules are temporarily cached in each database.
This cache is periodically refreshed.
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