Global Temporary Table in sql server

Global Temporary Table:

Global Temporary tables are visible to or available across all sessions. And all users.

Global Temporary tables are created using the same syntax as a CREATE TABLE except the table name starts with "##" (two '#' signs). When the table is only "##", it is defined as a local global temporary table and it's scope is not limited to the session it is created in.

A Global Temporary table is dropped automatically when the last session using the temporary table has completed.

Both the local temporary tables and global temporary tables are physical.