A P P E N D I X B Upgrading Servers with

Replicated Databases

Topic

Page

Introduction

131

 

 

Suspending transaction processing and replication activities

132

 

 

Draining the transaction logs for primary databases

133

 

 

Draining the RSSD transaction log

135

 

 

Disabling the secondary truncation point

136

 

 

Introduction

After you have upgraded, you will no longer be able to scan any part of the transaction log that existed before the upgrade, so you must follow the following process if your server contains replicated primary databases (this includes replicated RSSDs). This procedure will help to ensure that all replicated data from a replicated database has made it safely to the replicate database.

Warning! It is not sufficient to simply get the replicated data into the Replication inbound queue, you cannot rebuild the inbound queue after the upgrade.

The procedures described here do not upgrade Replication Server itself.

For information on upgrading Replication Server, see your Replication

Server documentation.

The database upgrade procedure consists of:

•Suspending transaction processing and replication activities.

•Draining transaction logs for primary databases.

•Draining the Replication Server System Database (RSSD) log.

Installation Guide

131

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Sybase 15.0.2 manual Introduction, 131
Page 144 Page 146

15.0.2 specifications

Sybase 15.0.2, a product of the Sybase corporation (now SAP), is a relational database management system (RDBMS) that provides robust solutions for data management, security, and performance. This version builds upon its predecessors, offering improved features and enhancements that cater to both enterprises and developers.

One of the standout features of Sybase 15.0.2 is its advanced performance capabilities. The version introduces optimization enhancements such as the Query Optimizer, which is designed to ensure efficient execution of complex queries. This optimizer analyzes SQL statements and tables to choose the most efficient means of retrieval, thus reducing execution time and improving the overall performance of the database.

Sybase 15.0.2 supports improved scalability, allowing organizations to handle increased workloads without significant changes to their infrastructure. This scalability is crucial for businesses experiencing growth, as it ensures that performance remains consistent and reliable.

Another notable characteristic is the robust security architecture integrated within Sybase 15.0.2. The system includes features like data encryption, user authentication, and authorization mechanisms, making it suitable for environments that handle sensitive information. Database administrators can implement fine-grained access controls to manage user permissions effectively.

Moreover, Sybase 15.0.2 boasts support for a wide range of programming languages and frameworks. This versatility allows developers to build applications using their preferred tools, promoting productivity and ease of integration into existing systems. The database management system also supports various platforms, including Windows and UNIX, enabling diverse deployments across different environments.

In addition to these technological enhancements, Sybase 15.0.2 emphasizes data integrity through its robust transaction management system. It implements the ACID properties (Atomicity, Consistency, Isolation, Durability) to ensure that all database transactions are processed reliably, thereby maintaining the integrity of data even in high-transaction scenarios.

In conclusion, Sybase 15.0.2 is a feature-rich RDBMS that combines performance, scalability, security, and flexibility. Its advanced capabilities not only enhance data management for organizations but also provide a solid foundation for developers seeking to create efficient and secure applications. The improvements in this version make it a compelling choice for enterprises looking to optimize their database operations in an increasingly data-driven world.
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