Pre-upgrade tasks

Noting server and device names and locations

By default, the master (master.dat) and system procedures device

(sybsytemprocs.dat) files are installed in the %SYBASE%\data directory. The device file names can be different from their device names.

Be sure that the directory to which your TEMP environment variable points exists. The installation program uses the directory to write files temporarily during the installation, which it locates via the TEMP environment variable.

Procedure text is required for upgrade

If you created any compiled objects or stored procedures in a pre-11.9.3 server, then removed the syscomments text, the upgrade succeeds but you will encounter runtime problems. To upgrade stored procedures, the stored procedure text must be available in syscomments.

To successfully upgrade to Adaptive Server version 15.0.2:

•Reinstall the procedures with text, or

•Remove them and reinstall them after the upgrade.

You can also hide the text using the sp_hidetext stored procedure.

Reserved words

Reserved words are pieces of SQL syntax that have special meaning when used as part of a command.

Transact-SQL does not allow words that are part of command syntax to be used as identifiers, unless they are enclosed in quotation marks. If you are upgrading Adaptive Server, and the identifiers in your user databases match new reserved words, errors result when you run queries, stored procedures, or applications that use these identifiers.

Note Before performing your upgrade, change the name of any user database that is a reserved word using the sp_renamedb stored procedure.

Conflicts between object names do not prevent the upgrade process from completing. However, applications that refer to conflicting object names may not work after the upgrade. Rename all objects that use reserved words.

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Adaptive Server Enterprise

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Sybase 15.0.2 manual Noting server and device names and locations, Procedure text is required for upgrade, Reserved words
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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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