Oracle9i includes numerous data structures to improve the speed of Oracle SQL queries. Taking advantage of the low cost of disk storage, Oracle9i includes many new indexing algorithms that ...

A SQL Server expert gives his take on the absolute, No. 1, very worst thing IT pros can do when it comes to indexing. Consultant, author and Microsoft MVP Denny Cherry travels the world helping ...

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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 ...