Published April 21, 2011
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Thank you for using Embarcadero DB Optimizer, an enterprise SQL development and optimization tool that gives database developers and administrators the perfect environment for building the best performing SQL code. This application easily identifies inefficient SQL code and boosts developer productivity by ensuring SQL is right before it becomes a problem in mission-critical applications. DB Optimizer also provides a rich SQL IDE with code completion, real-time error checking, code formatting and sophisticated object validation tools. Lastly, DB Optimizer provides advanced project and data source management tools.
DB Optimizer is supported on the following operating systems:
DB Optimizer requires a Java5 VM to run:
SQL execution and SQL tuning with DB Optimizer is supported on the following DBMS platforms and versions:
SQL profiling with DB Optimizer is supported on the following DBMS platforms and versions:
DB Optimizer should be installed in a different directory than previous versions of DB Optimizer. If DB Optimizer is installed in the same directory, the following error will result in at application start up: "Unable to read workbench state. Workbench UI layout will be reset.” Additionally, DB Optimizer should be installed in a different directory than previous versions. If a previous version is already installed on your machine, either change the default Workspace or delete all files from the Workspace directory. The Workspace directory location appears whenever you start Optimizer, and can be redefined from this dialog box. If the same Workspace is indicated for the new version as was indicated previously, the following error will result: “Cannot restore workbench layout". If DB/Optimizer is already running, you can also modify the Workspace directory by choosing File > Switch Workspace > Other from the Main Menu.
Note: DB Optimizer does not access in any way, shape or form any of the information, tables or views licensed under Oracle's diagnostic pack.
What's New in DB Optimizer 3.0
Improvements to Profiling
Improvements to Tuning
Important Advisory Notes
What's New in DB Optimizer 3.0
User Interface Changes
Object Indexing Enabled by Default
Previous versions of DB Optimizer had the option to create an index of schema objects on a data source in order to provide code completion and semantic validation of object names in the SQL Editor, but this was disabled by default, because it could affect data source performance. In DB Optimizer 3.0, the speed and efficiency of Object Indexing has been significantly improved, so this functionality is now enabled by default. This option can still be disabled from the preferences window (available from the Preferences > Data Source Indexing option).
New Actions on Oracle Sessions During Profiling
While profiling an Oracle data source, the Sessions tab in the profiling editor has two new context menu actions on rows in the session grid:
MS SQL Server and Sybase ASE Profiling Improved
Profiling on Microsoft SQL Server and Sybase Adaptive Server Enterprise are now more efficient, contributing less than 2% load on the profiled data source under most conditions. Furthermore, more accurate data is collected.
Improved User Interface for the Tuning Editor
The dedicated Input tab of the Tuning Editor has been removed, allowing the user to specify statements for tuning directly within the Overview tab. In the top-right of the Tuning Editor, there is an input selection button, to add statements for tuning from the following sources:
Oracle RAC Profiling
All instances of an Oracle Real Application Cluster (RAC) can be profiled using a single profiling session (and a single connection to the cluster). To enable this functionality for a RAC data source, you must access the Profile Configurations dialog, in one of the following ways:
During profiling, alerts can be triggered based on thresholds set on the number of:
The results of a profiling session can now be exported as an HTML or PDF document that can be saved for later, shared, and printed. Within the Profiling Editor, the Export Report button is located in the top right, between the filter options and the Help button. By default, the report is generated for the entire duration of the profiling session. To restrict the report to a particular time interval, click and drag on the profile session chart. To clear the selection, click once on the chart outside the selection.
Support for Common Table Expressions on Oracle and MS SQL Server
The SQL Editor and Tuning Editor now both support common table expressions (CTEs) for Oracle and SQL Server. This includes syntax highlighting and checking in the editor, as well as generation of explain plans for CTEs from the SQL Editor and the Tuning Editor.p>
Improved Visual SQL Tuning for Oracle
The Visual SQL Tuning (VST) diagram for Oracle 10g and 11g now has the option of showing Explain Plan details in addition to the column relationships. The explain plan display can be toggled on/off by clicking the leftmost button that appears when hovering over the SQL Analysis diagram. The additional nodes shown in the Explain Plan overlay provide details on the flow of the query plan, with operations (such as nested loops, sorts, and joins) showing connecting tables and other operations.
Important Advisory Notes
Use your browser Find feature to locate a particular bug number or click a link below to see the issues addressed in a specific build.
Bugs Fixed in DB Optimizer 3.0
|Bugs Fixed in Embarcadero DB Optimizer 3.0|
|OPT-2642||Profiling Details for a DB2 data source now correctly reports elapsed time in the Execution Statistics section of the Profiling Details tab.|
|OPT-2646||Performance of a tuning job for an Oracle 9i data source has been increased. Semantic validation and query analysis are now performed more efficiently.|
|OPT-2647||Error in tuning job while generating cases, "object caching: could not retrieve the following object because it doesn't exist or is not qualified properly: object name" no longer displayed.|
|OPT-2668||The Profiler now correctly uses SYSTDATE for Oracle 8 and SYSTEMSTAMP for Oracle 9 and higher.|
|OPT-2696||On Oracle 9, tuning performance and semantic validations of constraint queries has been inproved.|
|OPT-2716||SQL Parser no longer displays error "Encountered Unexpected Token" when tuning well formed SQL.|
|OPT-2779||TOP keyword in Sybase 12.5.3 and higher is now recognized by the SQL Parser.|
|OPT-2782||Sybase object resolution no longer fails for databases created by users with SA_ROLE when tuning as sa.|
|OPT-2786||Tuning error for SQL Server 2008 that appeared when the database was created by a user with SA_ROLE who is not the sa, has been fixed.|
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