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Sybase 15.0.2 manual Draining the transaction logs for primary databases, 134

Models: 15.0.2

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command...replicate all columns

Draining the transaction logs for primary databases

5Use isql to update one row in a single replicated table in the primary database:

1> update table set column = column

2> where key = unique_value

3> go

The update command helps track whether all modifications to the replicated database have been sent to the Replication Server.

Note In Replication Server 10.1 or later, choose a table that does not use the replicate minimal columns clause, or use the alter replication definition

command to change the replication

definition before updating the row. If you alter the replication definition, be sure to change it back after you complete this upgrade procedure.

6In the primary Replication Server, execute the admin who, sqm command until the last segment:block entry for the inbound queue changes.

7Execute the following Replication Server command to dump the last block of the inbound queue to the dump file you created in step 3:

1> sysadmin dump_queue, queue_number, 2> queue_type, last_seg, block, 1

3> go

Use the queue_number, queue_type, last_seg, and block values found in the output of the last admin who, sqm command.

8Use Notepad or another text editor to examine the dump file to make sure it contains the transaction that corresponds to the update you performed in step 4.

9Repeat steps 5–7 until the transaction that corresponds to the update is in the dump file.

10Log in to the Replication Server and suspend the Log Transfer connection from that database:

1> suspend log transfer from server.database 2> go

11If you are using Rep Agent, log into the Adaptive Server, and stop the Rep Agent:

1> use database 2> go

1> sp_stop_rep_agent database

134

Adaptive Server Enterprise

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Sybase 15.0.2 manual Draining the transaction logs for primary databases, 134
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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.