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SQL Server Agent is a component of Microsoft SQL Server which schedules jobs and handles other automated tasks. [1] It runs as a Windows service so it can start automatically when the system boots or it can be started manually.
In Microsoft SQL Server, the leaf node of the clustered index corresponds to the actual data, not simply a pointer to data that resides elsewhere, as is the case with a non-clustered index. [5] Each relation can have a single clustered index and many unclustered indices.
Materialized views were introduced by Oracle Database, while IBM Db2 provides so-called "materialized query tables" (MQTs) for the same purpose. Microsoft SQL Server introduced in its 2000 version indexed views which only store a separate index from the table, but not the entire data. PostgreSQL implemented materialized views in its 9.3 release.
These articles are pertain to the database management of, or software for, Microsoft SQL Server and Microsoft Jet Database Engine. Pages in category "Microsoft database software" The following 41 pages are in this category, out of 41 total.
Structured Query Language is one of the most popular computer languages used to create, modify and query databases. Subcategories This category has the following 8 subcategories, out of 8 total.
A hierarchical query is a type of SQL query that handles hierarchical model data. They are special cases of more general recursive fixpoint queries, which compute transitive closures. In standard SQL:1999 hierarchical queries are implemented by way of recursive common table expressions (CTEs).
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In various SQL implementations, a hint is an addition to the SQL standard that instructs the database engine on how to execute the query. For example, a hint may tell the engine to use or not to use an index (even if the query optimizer would decide otherwise).