Escape Clauses, a feature not found in all type 4 JDBC drivers. The Oracle Thin JDBC driver, for example, does not support Outer Join escape clauses. Administration and Security SequeLink provides flexibility in administering access to databases. For example, a SequeLink administrator can tailor the level of detail returned to the user when the server refuses a connection to a database. SequeLink administrators can also specify user authentication levels and maintain trace logs of the data transmitted between clients and server.
Administrators can also restrict access to data by maintaining a list of authorized applications.
SequeLink provides compression for data passing between its client and server software. It also provides integrated encryption and a uniform model for secure connections. Performance and Scalability A multi-tier architecture, such as SequeLink, provides scalability by adding servers and services as needed. SequeLink implements a high-performance catalog by using Shadow Data Dictionaries and caching the results of catalog queries. Administrators can use the SequeLink Dictionary Manager to create Shadow Data Dictionaries for users and groups, using dictionary views that are tailored for specific requirements.