Top Leading Oracle Training in Chennai by Certified Experts. Recommended as Best Oracle Training Institute in Chennai with placements. Excellent Oracle training. Bemutatkozás A Kormos Vendégház Szilvásvárad központjában található. Az udvarról csodálatos kilátás nyílik a Bükk-hegységre, és a Milleniumi kilátóra. · It is important to note that the items on this list are cryptographic modules. A module may either be an embedded component of a product or application, or. Oracle interview questions. What is Observer pattern? Explain with Code Example? view answer; Replication Troubleshooting using DBMS_REFRESH: view answer. Burleson Consulting is an altruistic company and we believe in sharing our Oracle extensive knowledge through publishing Oracle books and Oracle articles, video. Using of BULK COLLECT and FORALL for better performance Published Tuesday, August 16, 2005 by Radoslav Rusinov | E-mail this post. · One of our systems has serious problems on certain days. I am looking at some oracle views (v$system_event, v$session_event. Article ID -- Article Title. FD39360 - Technical Note: Fortinet Auto Discovery VPN (ADVPN) FD34371 - Video Library: Tutorials and Guides for Fortinet Products. Preparing to Upgrade Oracle Database. Before you upgrade Oracle Database, you must understand the requirements and recommendations. This chapter provides information and procedures for the pre- upgrade tasks, including installing the new Oracle software for the upgrade. Tasks for Preparing to Upgrade Oracle Database. In preparation for upgrading Oracle Database, you review the new features and determine the best upgrade path and method to use. Oracle recommends that you test the upgrade process and prepare a backup strategy. Complete the following tasks to prepare to upgrade your database: 2. Determine the Upgrade Path for Oracle Database. The path that you must take to upgrade to the latest release of Oracle Database 1. You may perform a direct upgrade to the new release if your current Oracle Database is release 1. You may directly upgrade from release 1. If your current Oracle Database is a release earlier than 1. Oracle Database to the latest release is not supported. In this case, you are required to upgrade to an intermediate release before upgrading to Oracle Database 1. For example, if the database from which you are upgrading is running Oracle Database 9i, then follow these steps: Upgrade release 9. Oracle Database Upgrade Guide 1. Release 2 (1. 0. 2). Upgrade Oracle Database 1. Release 2 (1. 0. 2. Oracle Database 1. Oracle Database Upgrade Guide, which is this book. Table 2- 1 contains the required upgrade path for each release of Oracle Database. Use the upgrade path and the specified documentation to perform an intermediate upgrade of your database before fully upgrading to Oracle Database 1. Table 2- 1 Examples of Upgrade Paths for Oracle Database 1. If your Current Release is: Then the Direct or Intermediate Upgrade Path is: 1. Direct upgrade is supported. Perform the upgrade using the current Oracle Database Upgrade Guide, which is this guide. Direct upgrade to Oracle Database 1. Solution: Upgrade to an intermediate Oracle Database release (that can be directly upgraded to release 1. Oracle Database 1. This does not include upgrading using Oracle Data Pump export/import. When upgrading to an intermediate Oracle Database release, follow the instructions in the intermediate release's documentation. Then, upgrade the intermediate release database to the new Oracle Database 1. Chapter 3, "Upgrading Oracle Database". For example: If you are upgrading from 1. Oracle Database 1. Release 2 (1. 1. 2. If you are upgrading from 1. For release 9. 2. Oracle Database release, as follows: 9. Choose an Upgrade Method for Oracle Database. Oracle recommends that you use Database Upgrade Assistant (DBUA) as the best method to upgrade your database. However, Oracle offers several methods to fully upgrade your database that support the complexities of your enterprise. See "Overview of Oracle Database Upgrade Tools and Processes" for the definition and description of the differences between upgrading and migrating data. The upgrade methods that you can use to upgrade your database to the new Oracle Database release are: 2. The Automated (DBUA) Method for Upgrading Oracle Database. Database Upgrade Assistant (DBUA) interactively steps you through the upgrade process and configures the database for the new Oracle Database release. DBUA automates the upgrade process by performing all of the tasks normally performed manually. DBUA makes appropriate recommendations for configuration options such as tablespaces and redo logs. You can then act on these recommendations. In an Oracle Real Application Clusters (Oracle RAC) environment, DBUA does not upgrade all the databases per se; DBUA upgrades all the database files and configuration files on all nodes in the cluster. The Manual, Command- line Method for Upgrading Oracle Database. A manual upgrade consists of running SQL scripts and utilities from a command line to upgrade a database to the new Oracle Database release. While a manual upgrade gives you finer control over the upgrade process, it is more susceptible to error if any of the upgrade or pre- upgrade steps are either not followed or are performed out of order. Before the Upgrade. The following list provides a high- level summary of the manual upgrade steps: Analyze the database using the Pre- Upgrade Information Tool. The Pre- Upgrade Information Tool is a SQL script that is supplied with Oracle Database, and DBUA uses this tool as part of its upgrade process. Run the Pre- Upgrade Information Tool on the database you are upgrading. The Pre- Upgrade Information Tool displays warnings about possible upgrade issues with the database, and generates fixup scripts for you to use to address any issues. It also displays information about required initialization parameters for the new release of Oracle Database. Prepare the new Oracle home. Perform a backup of the database. Depending on the release of the database being upgraded, you might be required to perform additional pre- upgrade steps (adjust the parameter file for the upgrade, remove desupported initialization parameters and adjust initialization parameters that might cause upgrade problems). After the Upgrade. Review the upgrade spool log file and use the Post- Upgrade Status Tool, utlu. The Post- Upgrade Status Tool is a SQL script that is included with Oracle Database. You run the Post- Upgrade Status Tool in the environment of the new release. You can run the Post- Upgrade Status Tool any time after upgrading the database. The Export/Import Method for Migrating Data When Upgrading Oracle Database. Unlike DBUA or a manual command- line upgrade, the Oracle Data Pump Export and Import utilities physically migrate a copy of data from your current database to a new database in the new release. Data Pump Export and Import are recommended for higher performance and to ensure support for new datatypes. The new database must exist, or you must have created the database in the new Oracle home, before the contents of the export dump file(s) can be loaded. When importing data from an earlier release, the import utility of the new Oracle Database release makes appropriate changes to data definitions as it reads the export dump files from the earlier release. Note: If your database is earlier than Oracle Database release 1. Export and Import utilities to perform a full or partial export from your database, followed by a full or partial import into a new database for the upgraded Oracle Database. Export/Import can copy a subset of the data in a database, leaving the original database unchanged. The original Export utility is no longer being updated to support new datatypes. The Effects of Export/Import on Upgraded Oracle Databases. The Export/Import data migration method does not change the current database, which enables the database to remain available throughout the upgrade process. However, if a consistent snapshot of the database is required (for data integrity or other purposes), then the database must run in restricted mode or must otherwise be protected from changes during the export procedure. Because the current database can remain available, you can, for example, keep an existing production database running while the newly upgraded Oracle Database database is being built at the same time by Export/Import. During the upgrade, to maintain complete database consistency, changes to the data in the database cannot be permitted without the same changes to the data in the newly upgraded Oracle database. Most importantly, the Export/Import operation results in a completely new database. Although the current target database ultimately contains a copy of the specified data that you migrated, the upgraded database might perform differently from the original source database. For example, although Export/Import creates an identical copy of the database, other factors, such as disk placement of data and unset tuning parameters, might cause unexpected performance issues. Export/Import Benefits for Migrating Data for Oracle Database.
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