Overview of MySQL Storage Engine Architecture-opracowanie

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Overview of MySQL Storage Engine Architecture
The MySQL pluggable storage engine architecture enables a database professional to select a
specialized storage engine for a particular application need while being completely shielded from the
need to manage any specific application coding requirements. The MySQL server architecture isolates
the application programmer and DBA from all of the low-level implementation details at the storage
level, providing a consistent and easy application model and API. Thus, although there are different
capabilities across different storage engines, the application is shielded from these differences.
The pluggable storage engine architecture provides a standard set of management and support
services that are common among all underlying storage engines. The storage engines themselves
are the components of the database server that actually perform actions on the underlying data that is
maintained at the physical server level.
This efficient and modular architecture provides huge benefits for those wishing to specifically
target a particular application need—such as data warehousing, transaction processing, or high
availability situations—while enjoying the advantage of utilizing a set of interfaces and services that are
independent of any one storage engine.
The application programmer and DBA interact with the MySQL database through Connector APIs and
service layers that are above the storage engines. If application changes bring about requirements
that demand the underlying storage engine change, or that one or more storage engines be added to
support new needs, no significant coding or process changes are required to make things work. The
MySQL server architecture shields the application from the underlying complexity of the storage engine
by presenting a consistent and easy-to-use API that applies across storage engines.
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