Check our Tip of the Week, about SQL Server Temporary Tables.
Tip of the Week #6
Local temporary tables in SQL Server, are defined by using the # (single hash) sign and they are only available for the session in which they were created in. After the session ends, local temporary tables are automatically dropped by the SQL Server Database Engine.
Global temporary tables in SQL Server, are defined by using the ## (double hash) sign and are available to all sessions (visible to all users), but after the session in which the temporary table was created ends and all references to the table are closed, then the temporary table is automatically dropped by the SQL Server Database Engine.
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Artemakis Artemiou is a seasoned Senior Database and AI/Automation Architect with over 20 years of expertise in the IT industry. As a Certified Database, Cloud, and AI professional, he has been recognized as a thought leader, earning the prestigious Microsoft Data Platform MVP title for nine consecutive years (2009-2018). Driven by a passion for simplifying complex topics, Artemakis shares his expertise through articles, online courses, and speaking engagements. He empowers professionals around the globe to excel in Databases, Cloud, AI, Automation, and Software Development. Committed to innovation and education, Artemakis strives to make technology accessible and impactful for everyone.
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