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  SQL Server Tips by Gama and Naughter

 

Local temporary tables

 

A local temporary table's name starts with #, this table will be created and exist only during a user's connection. Other users cannot access it and it will be deleted either by the user or by the server, once the connection ends. Local temporary tables are stored in table sysobjects from database tempdb, more specifically in column "name" and they have their original name plus many underscore signs and finally 000000000016 at the very end. The number of underscore signs is enough to keep the name column with 128 characters. For example for temporary table #mytempt the column name would be:
 

#mytempt____ 108 underscore signs _____000000000016


The above book excerpt is from:

Super SQL Server Systems
Turbocharge Database Performance with C++ External Procedures

ISBN: 0-9761573-2-2
Joseph Gama, P. J. Naughter

 http://www.rampant-books.com/book_2005_2_sql_server_external_procedures.htm
 

 

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