6oracle database architecture for the parallel server

... plan for the number of users accessing the server ■ SESSIONS Number of allowable sessions You need to restart the database to change this value, so plan for the number of users accessing the server ... RULE in Oracle Database 10g) This is the setting for the default behavior of the optimizer for cost-based query plans The default for Oracle Database 11g is ALL ROWS ■ CURSOR_SHARING FORCE, EXACT, ... allows for analyzing the data for flashback query operations For all of these cases, the undo tablespace must have a before image of the data The undo tablespace should be sized to hold the larger...

Ngày tải lên: 04/07/2014, 05:20

... jobs for automatic statistics gathering, 176 after creating database, 82 after database migration, 11 defined, 28 in OEM, for backups, 138–140 in OEM, for Data Pump, 158–160 overview of, 191 for ... language in See PL/SQL skills needed for managing, 6–7 SQL Server database migration to, 9–13 SQL Server vs See SQL Server vs Oracle storage requirements for files, 61–62 Oracle, internal structures ... 249 semicolon (;), database coding, 242, 262 sequences, Oracle, 241–243 server defined, 74 naming, 76–77, 119 permissions for, 95–98 server log, DBAs monitoring, Server tab, OEM Database Configuration...

Ngày tải lên: 04/07/2014, 05:20

... responsible for both database administration and database engineering for Oracle, DB2, Teradata, and SQL Server She has been largely responsible for database/ system administration, general architecture, ... data modeling, and database architecture of very large database environments She has administered environments supporting multiple database platforms, including Oracle, SQL Server, and Sybase ... with databases There is always something to learn and challenge us to come up with better solutions About the Technical Editor Kimberly Floss is a Manager of Database Services for a large Fortune...

Ngày tải lên: 04/07/2014, 05:20

... listing the SQL Server and Oracle commands or components related to the topic This makes it easy for those who are familiar with how to something in SQL Server to find the information they need for ... manage very large databases, and configurations for better performance New features in Oracle Database 11g have simplified some of the configurations and maintenance for the database However, ... they relate to the SQL Server ways of doing things, providing translations between the two platforms It compares some of the standard practices and looks at how the internals of the database require...

Ngày tải lên: 04/07/2014, 05:20

... SQL Developer before the SQL Server tab is present to connect to the SQL Server database Details on the procedure are available from the Oracle SQL Developer Help menu Search for database: third-party ... drivers.” Well, pulling the SQL Server database over into an Oracle database with the provided tools sounds simple enough Then the fun begins Just because Chapter 1: FIGURE 1-2 The Database Administrator ... support the SQL Server system you are managing Now let’s look at how these skills provide a starting point for learning Oracle Oracle Database Administration for Microsoft SQL Server DBAs SQL Server...

Ngày tải lên: 04/07/2014, 05:20

... values for the memory available for the server Memory it uses is limited to the memory available on the server The minimum value does not affect how much memory SQL Server will start with, but rather ... at some of the syntax for these jobs and how to perform tasks such as performing backups and gathering statistics You also will want to look at the best practices for maintaining the database environment ... blocks, and log buffers The PGA is the workload area for server processes Figure 2-1 shows the memory parameters for the SGA and PGA In Oracle9i Database and Oracle Database 10g, the dynamic memory...

Ngày tải lên: 04/07/2014, 05:20

... System-level Information For SQL Server databases and logins, the master database has the details The master database contains the system information and server configurations So, where is the master database ... SQL Server model database has the default template for creating new databases The Oracle database is created once with the use of the Database Configuration Assistant, script, or template The ... SQL Server are available for other sessions and processes until the server is restarted, and they are cleaned up at the end of the transaction or session, whether or not there were issues with the...

Ngày tải lên: 04/07/2014, 05:20

... find the compatibility matrix and the system requirements for the server As shown in Table 3-1, the requirements listed are minimum values; they might not be adequate for some systems to perform ... 45 46 Oracle Database Administration for Microsoft SQL Server DBAs Since SQL Server DBAs are familiar with the Windows platform, we will first discuss the Windows setup for Oracle Then we will ... *For Linux, the swap space should be the same as the RAM up to 16GB TABLE 3-1 Hardware Requirements (Minimum Values) components you plan to install will also determine what is needed for the server...

Ngày tải lên: 04/07/2014, 05:20

... using the Grid Infrastructure Use a different home directory than the database home directory for the installation of ASM, and perform the installation as another user, such as asmadm user The ... server logs For datafiles and one control file For backups For archive logs For data dump files and exports Another location for control files Control files contain information about the datafiles ... handles managing the disk, adding disk storage, and tuning I/O performance with rebalancing while the storage is up and available to the Oracle databases on that server The discussion then just comes...

Ngày tải lên: 04/07/2014, 05:20

... be removed Upgrading the Database As part of the installation, if an Oracle database already exists on the server, there will be an option to upgrade the database The Oracle Database Upgrade Assistant ... just for the server level, but also for the client installation Having a noninteractive mode for installing the client piece is probably even more valuable 67 68 Oracle Database Administration for ... that the software can be installed in pieces, such as first some components like Clusterware and ASM, and then the binaries for the database system The database creation can be done as part of the...

Ngày tải lên: 04/07/2014, 05:20

... database is “data and information that is collected together for the ability to access and manage.” The term server could refer to the actual server hardware or to the database server A SQL Server ... they are only at the server level The Oracle database is almost like the instance level for SQL Server The Oracle database is the overall group of datafiles and system information The Oracle software, ... not have the option for changing the character set The software components installed are the versions that are used for the database server This demonstrates that the Oracle database has the system...

Ngày tải lên: 04/07/2014, 05:20

... about globalization and the options available, as well as the application requirements for the character set of the database For SQL Server, collations are available at the server level and can ... Oracle Database Administration for Microsoft SQL Server DBAs NLS_SORT can also be set at the server or session level, instead of including it in the sort of the query The client and the database ... create another database in the same Oracle home or copy the template file to another server for use This obviously makes it easy to duplicate a database without having to go through the setup...

Ngày tải lên: 04/07/2014, 05:20

... you avoid the use of the sa account and revoke some of the permissions or lock the account Since SQL Server has Windows authentication for the other SQL Server logins, it provides the needed ... the server objects, services, and data dictionary These users also are the ones to shut down and start up the database Since the Oracle database owner is more of the system owner, there are server ... would be the user that is running the processes The DBAs should also be the system owners for several of their activities They would have the DBA role, which will allow for backing up the database, ...

Ngày tải lên: 04/07/2014, 05:20

... statistics that are collected for sessions and processes running against the database The repository pulls together the information to help assess the database performance, with top wait events, ... home page to the areas to manage the server and perform administration tasks 105 106 Oracle Database Administration for Microsoft SQL Server DBAs The tabs a good job of describing the areas that ... closest to the information in properties for a SQL Server instance, as well as the database properties that are seen in SQL Server Management Studio ■ Schema The Schema tab provides a view into the...

Ngày tải lên: 04/07/2014, 05:20

... file of the database for this purpose A database must be available to be able to create the schema needed for the RMAN catalog One catalog can manage the backups of several databases, but the catalog ... and fits the needs of the business There are several strategies for backing up databases, depending on resources, the importance of the data, and if it is needed for recovery and running the business ... moments? Besides the backups, there are exports, a recycle bin, and a way to flashback queries and even the database We ’ll start with some of the commands for backing up the database, and then progress...

Ngày tải lên: 04/07/2014, 05:20

... define the backup with the name of the database and a date in the file system directory The example uses the backupset backup type Another type is copy, which will an image copy of the database The ... overwrite the defaults, they not need to be mentioned each time a backup is run For the retention policy, the setting of the recovery window sets the number of days between the current time and the ... another location to free up the space, completed the cross-check, and then run the backup But there are still logs in another location that have not been backed up If there is now space in the...

Ngày tải lên: 04/07/2014, 05:20

... disk The catalog has the information about the database backup and backup set A control file can be used for the same information The restore database command restores the database files, and the ... it gathers the information about moving the files, database to copy to, and host information These duplicates include the whole database, with all of the different users and schemas So if there ... deleted before being backed up, they will not be in the set, and the restore option will be only to the point before the missing file This also applies to the redo logs The options for restoring...

Ngày tải lên: 04/07/2014, 05:20

... information It might seem like duplicate information, but remember that the RMAN catalog can keep the information for multiple databases, so a report can be run for all of the databases in the ... catalog The data dictionary view v$backup_set has the same details, but it is valid for only the database server, not all of the databases registered in the catalog The scripts are also stored in the ... still in the archive log file on the database server This is the case when the DELETE ALL INPUT option isn’t used with the backup command But the archive logs can also be cleared out another way:...

Ngày tải lên: 04/07/2014, 05:20

... more of the columns of a table might be populated after the initial load, which didn’t have complete information The information about the database objects and data is used by the database servers ... performance issues arise, or when changes, such as upgrades or the amount of workload, happen on the database server This will give the optimizer information for developing query plans Another ... options for running in parallel and for partitioned tables GATHER_SCHEMA_STATS has the same options, but it doesn’t require an object name and will perform the update on all of the objects in the...

Ngày tải lên: 04/07/2014, 05:20

... shows the option to perform the reorganization in the current tablespace or another tablespace The job can then be scheduled to run immediately or at another time The final step has a summary of the ... periodically run the scripts Job Scheduling With SQL Server, the msdb database holds the information about jobs and schedules, and the SQL Server Agent service must be running for the jobs to be ... the information about the jobs and maintains a history of successful runs and failed jobs with errors The jobs also can be extracted from SQL Server and created on another server In Oracle, the...

Ngày tải lên: 04/07/2014, 05:20