Firebird 3 has brought a fully unified server architecture and improvedsupport for multi-core hardware platforms. Threading of engine processeshas been improved, bringing the ability for Superserver to share page cacheacross thread and connection boundaries. New strategies inside the engine improve performance, query optimization, monitoring andscalability. Many important features that are globally configurable can now be overriddenand applied on a "per-database" basis. Above all, Firebird 3 provides more options forserver and database security. An authentication database can be dedicated to one or morespecific databases, or embedded within a user database. A number of sought-after features were introduced into the SQL language, including afully-implemented Boolean data type, a Microsoft-style IDENTITY type, SQL packages,stored user-defined functions and SQL-driven management of user accounts and accessprivileges. Despite the advances, Firebird 3 is still the Firebird that we know and love. This Supplement providesan updated reference for everyone who uses, or wants to use, the Firebird relational databasemanagement system as a back-end component to software ranging from bulk data collectors toenterprise-wide systems. It should be treated as an adjunct to the companion volumes, certainly notas a substitute--so don't throw away those doorstoppers that you bought for Firebird 2. The companion volumes Volume 1: Firebird Fundamentals is a "101" course for understanding client/server architecture, installing Firebird, setting it up on your network and beginning to work withdatabases, using the DDL lexicon of SQL. Volume 2: Developing with Firebird Data takes up from the first book, covering the DML and PSQLfeatures used by developers for making applications work with data. Volume 3: Administering Firebird Servers and Databases covers all of the tools, procedures and featuresavailable to operate, monitor and maintain the security of your servers and the health of your databases. To obtain the entire eBook versions of all four volumes of The Firebird Book Second Editionon a DVD, visit http://www.ibphoenix.com/products/dvd/developer_dvd.
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