Preparing to Upgrade Oracle Database. Performance testing of the new database compares the performance of various SQL statements in the new database with the performance of those same statements in the current database. Before upgrading, you should understand the performance profile of the application under the current database. Specifically, you should understand the calls the application makes to the database server. Database Replay. Starting with Oracle Database 1. Release 1 (1. 1. 1), you can use the new Database Replay feature to perform real- world testing of a database upgrade on your site's production workload before actually upgrading the production database.

Database Editions. The Oracle database server is available in the following editions: Oracle Enterprise Edition. Oracle's top-end database server product for big.

This feature captures the actual database workload on the production system and replays it on the test system. It also provides analysis and reporting to highlight potential problems—for example, errors encountered, divergence in performance, and so forth. In addition, all the regular Enterprise Manager performance monitoring and reporting tools such as Automatic Database Diagnostic Monitor, Automatic Workload Repository (AWR), and Activity Session History are available to address any problems.

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Note. You can change the stored procedure logic in the database but the stored PL/SQL procedures that implement the application logic must maintain the same interfaces as before the upgrade. Full Metal Panic Mp4 Megalodon more. If an upgrade affects the stored procedures of an application, then the workload might not be replayable.

Search settings; Web History : Advanced search Language tools. Oracle acquired Sun Microsystems in 2010, and since that time Oracle's hardware and software engineers have worked side-by-side to build fully integrated systems and. The Main Steps for Preparing to Upgrade Oracle Database. In preparation for upgrading Oracle Database, you review the new features, determine the best upgrade path. As of Release 4.0, you can use the Security Audit Log to record security-related system information such as changes to user master records or unsuccessful logon attempts.

By using the Database Replay tool in this way, you have good diagnostics to see if the new application logic in the server is performing as expected after the upgrade. SQL Performance Analyzer.

Starting with Oracle Database 1. Release 1 (1. 1. 1), you can use the SQL Performance Analyzer to forecast the impact of system changes on a SQL workload. SQL Performance Analyzer enables evaluating the impact of a change such as database upgrade by identifying the SQL statements impacted by the upgrade and measuring their performance divergence. The analysis enables you to assess the overall effect of the upgrade on SQL performance and makes it possible to avoid any negative outcome before users can be impacted.

SQL Plan Management. SQL plan management prevents performance regressions resulting from sudden changes to the execution plan of a SQL statement by providing components for capturing, selecting, and evolving SQL plan information. SQL plan management is a preventative mechanism that records and evaluates the execution plans of SQL statements over time, and builds SQL plan baselines composed of a set of existing plans known to be efficient. The SQL plan baselines are then used to preserve performance of corresponding SQL statements, regardless of changes occurring in the system. A database upgrade that installs a new optimizer version usually results in plan changes for a small percentage of SQL statements, with most of the plan changes resulting in either no performance change or improvement. However, certain plan changes may cause performance regressions. SQL plan management prevents performance regressions resulting from sudden changes to the execution plan of a SQL statement by providing components for capturing, selecting, and evolving SQL plan information.

If you are performing a database upgrade that installs a new optimizer version, then it can result in plan changes for a small percentage of SQL statements, with most of the plan changes resulting in either no performance change or improvement. However, certain plan changes may cause performance regressions. With SQL plan management, the optimizer automatically manages execution plans and ensures that only known or verified plans are used.

When a new plan is found for a SQL statement, the plan is not used until it has been verified by the database to have comparable or better performance than the current plan. Therefore, if you seed SQL plan management with your current (pre- Oracle Database 1. SQL plan baseline for each statement, then the optimizer uses these plans after the upgrade. If the Oracle Database 1. There are two ways to seed or populate a SQL Management Base (SMB) with execution plans: Automatic capture of execution plans (available starting with Oracle Database 1. Bulk load execution plans or preexisting SQL plan baselines.

Bulk loading of execution plans or SQL plan baselines is especially useful when upgrading a database from a previous release to Oracle Database 1. SQL plans that are bulk loaded are automatically accepted and added to existing or new plan histories as SQL plan baselines. To bulk load the SQL Management Base as part of an upgrade: Bulk Loading a SQL Management Base with a SQL Tuning Set (STS)To bulk load the SQL Management Base with an execution plan from an STS In Oracle Database 1. Release 2 (1. 0. 2), create an STS that includes the execution plan for each of the SQL statements. Load the STS into a staging table and export the staging table into a dump file. Import the staging table from a dump file into Oracle Database 1. STS. Use Oracle Enterprise Manager or DBMS.

Oracle and Sun Microsystems . Early examples include the Oracle Exadata Database Machine X2- 8, and the first Oracle Exalogic Elastic Cloud, both introduced in late 2.

During 2. 01. 1, Oracle introduced the SPARC Super. Cluster T4- 4, a general- purpose, engineered system with Oracle Solaris that delivered record- breaking performance on a series of enterprise benchmarks. Oracle's SPARC- based systems are some of the most scalable, reliable, and secure products available today. Sun's prized software portfolio has continued to develop as well, with new releases of Oracle Solaris, My. SQL, and the recent introduction of Java 7. Oracle invests in innovation by designing hardware and software systems that are engineered to work together.