CHAPTER 7 Troubleshooting

1From Windows, go to the MS-DOS command prompt window.

2Start isql and connect to Adaptive Server:

%SYBASE%\%SYBASE_OCS%\bin\isql -Usa -P -Sserver_name

Where:

•%SYBASE% – is the Sybase installation directory

•server_name – is the name of your Adaptive Server

3Shut down Adaptive Server using the shutdown with nowait command. Using the with nowait option stops the Adaptive Server immediately, without waiting for currently executing SQL statements to finish:

1> shutdown with nowait 2> go

Note If you cannot connect to Adaptive Server with isql, or if the shutdown with nowait command fails, use the Task Manager (press Ctrl+Alt+Del) or a Windows process monitoring utility, (for example, the pview.exe program included with the Microsoft Toolkit), to stop the Adaptive Server process.

Recovering from a failed installation

If the installation does not succeed, the installation program displays error messages. Review the error messages and your Adaptive Server error log to determine the cause of the installation failure. For default error log locations, see Table 7-2 on page 103.

If installation fails after files are created

If the installation program quits while you are configuring Adaptive Server:

1View the contents of the log file generated by Adaptive Server. For default error log locations, see Table 7-2 on page 103.

2Take any suggested actions to correct the problem.

3If the installation fails after the installation program has created any operating system files, such as the master device or system procedures device files, delete those files.

Installation Guide

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Sybase 15.0.2 manual Recovering from a failed installation, If installation fails after files are created, 105
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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.
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