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Azure SQL Database limitations

Some of the database and T-SQL limitations in Azure SQL are:

  • No Windows authentication on Azure SQL.
  • No Extended stored procedures and table partitioning.
  • No support for database mirroring and failover clustering.
  • No point-in-time restore as in SSMS.
  • Does not support Common Language Runtime (CLR) like views, stored procedures, triggers, and user-defined functions.
  • The FILETABLE and FILESTREAM options are not available in the CREATE DATABASE command.
  • CREATE LOGIN and ALTER LOGIN supports limited features.
  • T-SQL syntax for server-level permissions such as GRANT, REVOKE, and DENY not supported.
  • Database diagrams are not available.
  • System stored procedure sp_helpuser not available.
  • T-SQL debugging.
  • USE statement to change database. Create a new connection to that database instead.

Refer the T-SQL differences between SQL Server and Azure SQL Database for a complete reference.

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