Create a Temporary Table in SQL Server

In SQL Server, temporary tables are created using the same CREATE TABLE syntax as regular tables. The difference is that temporary tables’ names are prefixed with either one or two number signs (#), depending on whether it’s a local temporary table or global temporary table:

  • Local temporary tables are prefixed with a single number sign (#)
  • Global temporary tables are prefixed with a double number sign (##)

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What is @@SERVICENAME in SQL Server?

In SQL Server, the @@SERVICENAME configuration function returns the name of the registry key under which SQL Server is running.

No argument is required. You can simply use it in a SELECT statement to return the registry key’s name.

Note that SQL Server runs as a service named MSSQLServer. The @@SERVICENAME function returns MSSQLSERVER if the current instance is the default instance. It returns the instance name if the current instance is a named instance.

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How to Encrypt a Stored Procedure in SQL Server

In SQL Server, you can encrypt a stored procedure at the time you create it, or you can alter it later to include encryption.

To create a stored procedure with T-SQL, you use the CREATE PROCEDURE syntax. To encrypt it, you add the WITH ENCRYPTION argument.

You can also use the same argument to encrypt an existing procedure when using ALTER PROCEDURE.

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