Sharding_19c_New_Features - 墨天轮文档

Sharding_19c_New_Features

1635

7页

3次

2019-12-12

5墨值下载

Oracle

Sharding 19c

New Features

White Paper / June 24, 2019

2 WHITE PAPER / Oracle Sharding 19c – New Features

Introduction .................................................................................................. 3

Multiple Shards in a Single Multitenant Database ....................................... 4

Multiple Table Families ................................................................................ 4

Scalable Cross Shard Query Coordinators .................................................. 5

Middle Tier Sharding .................................................................................... 6

Summary ..................................................................................................... 6

3 WHITE PAPER / Oracle Sharding 19c – New Features

INTRODUCTION

Oracle Database Sharding enables globally distributed, linearly scalable, multi-model databases.

It allows you to support applications that require low latency, high availability, and meet data

sovereignty requirements. Oracle Sharding distributes your data across multiple databases

either within the same data center or across multiple data centers in a way that provides locality

for applications either on-premises or in the cloud. The pool of databases is presented to the

application as a single logical database. Applications can elastically scale by adding more

databases(shards) to the pool. It is built on shared-nothing architecture, in which data is

horizontally partitioned across databases that share no hardware or software. Oracle Sharding

does all this while rendering the strong consistency, full power of SQL and the Oracle Database

ecosystem.

Figure 1 – Sharded Databases

Oracle Database Sharding has been available since Oracle Database 12c Release 2.

This white paper discusses new features of Oracle Sharding 19c It is intended for Enterprise

Architects, Database Architects, Database Administrators, Application Architects and those who

are involved in the design and architecture of distributed database systems.

of 7

5墨值下载