Getting Started with Cloudscape,
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Release Notes

What’s New in Version 3.0?

For previous customers, this section tells you what is new in the current version. For late-breaking features and information, be sure to read the release notes.

For information about upgrading databases, see the Cloudscape Developer’s Guide.

See the release notes for details about changes that might affect existing applications.

Core Features

J2EE Compliance and JDBC 2.0 Features

  • JTA support (see the Cloudscape Reference Manual).
  • Support for a subset of JDBC 2.0 features including batch processing (see the Cloudscape Reference Manual).
  • Full CallableStatement support, including OUTPUT parameters and full IN/OUT parameters (see the Cloudscape Reference Manual).
  • Support for a subset of javax.sql JDBC 2.0 extensions (including DataSource and ConnectionPool). (See the Cloudscape Reference Manual)
  • Full JDBC 2.0 getXXX/setXXX support on ResultSet, PreparedStatement, and CallableStatement.
  • Scrolling insensitive cursors (see the Cloudscape Reference Manual).

SQL

  • The ability to recompile all invalid statements (see ALTER STATEMENT in the Cloudscape Reference Manual).
  • Triggers (see CREATE TRIGGER in the Cloudscape Reference Manual).
  • Column defaults (see CREATE TABLE in the Cloudscape Reference Manual).
  • The ability to create a stored prepared statement that is not compiled until you use it (see CREATE STATEMENT in the Cloudscape Reference Manual).

Java Extensions to SQL

  • Class aliases (see CREATE CLASS ALIAS in the Cloudscape Reference Manual).
  • Built-in class aliases for built-in classes, including:
    • FileImport
    • FileExport
    • PropertyInfo
  • Orderable and indexable Java objects (UNION, ORDER BY, GROUP BY, DISTINCT, MAX, MIN, comparison operators, indexes and constraints).
  • Validity checking for method alias creation.
  • User-defined aggregates (see CREATE AGGREGATE in the Cloudscape Reference Manual).
  • Commits, rollbacks allowed in database-side methods when executed within a CALL statement.
  • Improved handling of null references in method calls in the Cloudscape Reference Manual).

Miscellaneous

  • Allow any join order for joins with ExternalVirtualTables.
  • Upgrade path for RunTimeStatistics objects.
  • Utility to make it easier to create and maintain user authorization lists (see the Cloudscape Developer’s Guide).
  • getEstimatedRowCount method for RunTimeStatistics.

New Administrative Tools

  • Lock diagnostics (see the Cloudscape Server and Administration Guide)
  • Consistency checker (see the Cloudscape Server and Administration Guide)
  • Backup utility (see the Cloudscape Server and Administration Guide)

Performance Improvements

  • MAX() optimization (see Tuning Cloudscape).
  • Costing information for VTIs (see Tuning Cloudscape).
  • Fast load of bulk data on published tables (see the Cloudscape Tools and Utilities Guide)
  • Fast load when replacing existing data (see the Cloudscape Tools and Utilities Guide)
  • The ability to override row-level locking for a table when you create it (see CREATE TABLE in the Cloudscape Reference Manual)
  • Automatic recompilation of stale statements (see Tuning Cloudscape).
  • Multiple columns allowed as hash keys in hash joins, improved hash joins, VTIs allowed in hash joins.
  • Actual deadlock detection and lock wait timeout (see the Cloudscape Developer’s Guide).
  • Ability to put log on separate device (see the Cloudscape Server and Administration Guide).
  • Concurrent insert improvements (reduced lock contention).

Connectivity Features

Cloudconnector Features

  • Cloudconnector support for JDK 1.2 with upgrade to WebLogic 4.5.

RmiJdbc

  • Easier-to-use driver and protocol (see the Cloudscape Server and Administration Guide).

Cloudscape Tools Features

Cloudview

Support for many new features.

ij

For more information, see the Cloudscape Tools and Utilities Guide.

  • New commands to support scrolling-insensitive result sets
  • The ability to provide a user name and password with the Connect request.
  • The ability to create read-only connections.

Cloudconnector Features

For more details, see the Cloudscape Server and Administration Guide.

  • Support for JDK 1.2.

Synchronization Features

For more details about any of these features, see the Cloudscape Synchronization Guide.

  • Support for automatic upgrade of synchronization databases.
  • Ability to upgrade non-synchronization databases to source databases.
  • Synchronization integrity features preserve system integrity when:
    • Databases are recovered.
    • Sources or targets are improperly copied.
  • Support for bulk insert on published tables.
  • The ability to force targets use only work units for synchronization for security and to prevent ad hoc SQL synchronization.
  • Ability to set target database properties directly.
  • New publication dictionary items:
    • class aliases
    • triggers
    • aggregates
  • Application debugging of failed transactions (new VTIs for extracting information about failed transactions).
  • Improved performance.
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Cloudscape Version 3.0
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