SQL Server Database Engine can distinguish between the same SQL temporary tables created while executing the same stored procedure many times simultaneously by appending a system-generated numeric suffix to the SQL Server temp table name. #TempShipments), that can be referenced by any process in the current database and discarded when the original database session that created that temp table disconnected or until the last statement that was referencing the temp table has stopped using it, as anyone who has access to the system TempDB database when that global SQL temp table is created will be able to use that table,Ī Persistent SQL Server temp table which is named starting with a TempDB prefix such as Īnd a Table Variable that starts with an prefix (e.g. #TempShipments), that can be referenced only by the current database session and discarded by its disconnection,Ī Global SQL temp table, which is named starting with # (e.g.
There are four main types for the SQL temp tables:Ī Local SQL Server temp table, which is named starting with a # symbol (e.g.
SQL temp tables can be used to enhance stored procedures performance by shortening the transaction time, allowing you to prepare records that you will modify in the SQL Server temp table, then open a transaction and perform the changes. SQL Server temp tables are a special type of tables that are written to the TempDB database and act like regular tables, providing a suitable workplace for intermediate data processing before saving the result to a regular table, as it can live only for the age of the database connection.
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