Knowing exactly what in-memory OLTP tables are used for will help you make the most of one of SQL Server's newest features. While in-memory online transaction processing (OLTP) tables may sound like a ...

Read this SQL tutorial to learn when to use SELECT, JOIN, subselects and UNION to access multiple tables with a single statement. It’s sometimes difficult to know which SQL syntax to use when ...

PolyBase, a data virtualization feature for SQL Server, allows users to seamlessly query data from various external sources directly using T-SQL (Transact-SQL) without the need for separate client ...

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