You can enclose the identifiers that are reserved words in double quotation marks and invoke the quoted_identifier option of the set command in procedures and queries that include the reserved words. The set quoted_identifier option tells Adaptive Server to treat any character string enclosed in double quotation marks as an identifier.
To avoid reserved word conflicts, all users on the server must invoke the quoted_identifier option in all stored procedures and queries that include the reserved words.
Preparing the database and devices for the upgrade
If you ran the pre-upgrade option in preupgrd.exe, the utility scanned the system catalogs and calculated how much additional space you need to perform the upgrade.
If you did not run the pre-upgrade check, you must manually calculate how much free space you must add to your system catalogs and databases.As a general rule, you must double the size of the largest catalog that you are going to upgrade, and add approximately 10 percent more to calculate the free space required for the upgrade to succeed. For example, if you have a large number of stored procedures or compiled object in any database, the syscomments and sysprocedures catalogs will require additional space.
Note Sybase recommends that you use preupgrade to determine how much free space is required for the upgrade.

Pre-upgrade tasks

Run sp_checkreswords in master and in each user database to display the names and locations of conflicting identifiers.

For more information about sp_rename and sp_checkreswords and methods for avoiding reserved word conflicts, see the Reference Manual.

Using quoted identifiers

vIncreasing default database sizes

You can use sp_helpdb or Sybase Central to determine the current size of the master, model, sybsystemprocs, and tempdb databases.

To enlarge the master, tempdb, and model databases:

66

Adaptive Server Enterprise

Page 80
Image 80
Sybase 15.0.2 manual Using quoted identifiers, Increasing default database sizes

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.