Data-Protection Modes Data Guard provides three high
... On the primary database, Data Guard log transport services use the following processes: • Log writer (LGWR) process: LGWR collects transaction redo information and updates the online redo logs. In synchronous mode, it ships redo information directly to the remote file server (RFS) process on the sta ...
... On the primary database, Data Guard log transport services use the following processes: • Log writer (LGWR) process: LGWR collects transaction redo information and updates the online redo logs. In synchronous mode, it ships redo information directly to the remote file server (RFS) process on the sta ...
Database Backup and Recovery
... • Log files should be stored on a separate drive from the data files • Log files in Oracle can be multiplexed ...
... • Log files should be stored on a separate drive from the data files • Log files in Oracle can be multiplexed ...
Database Tools by Skype
... Normally users work only on online table but in some cases they need to see data from all the history. plProxy can used to also query data from archive database when user requests data for longer period than online database holds. ...
... Normally users work only on online table but in some cases they need to see data from all the history. plProxy can used to also query data from archive database when user requests data for longer period than online database holds. ...
Chapter 1
... - Host is the name of the MySQL server - Default is the user’s machine - Username is that of the database - Default is the name used to log into the system - The given database name becomes the “focus” of MySQL - If it is an existing database, but it was not named in the mysql command, you must choo ...
... - Host is the name of the MySQL server - Default is the user’s machine - Username is that of the database - Default is the name used to log into the system - The given database name becomes the “focus” of MySQL - If it is an existing database, but it was not named in the mysql command, you must choo ...
Semantic Consistency in Information Exchange
... • Write checkpoint record in the log file and force-write the log to disk • Resume execution of transactions ...
... • Write checkpoint record in the log file and force-write the log to disk • Resume execution of transactions ...
Abstracts
... This session explores how to tune Oracle Data Provider for .NET (ODP.NET) for fast data retrieval and statement execution. Particular emphasis will be made on new ODP.NET and Oracle Developer Tools for Visual Studio (ODT) tuning features. ODP.NET introduces self-tuning, which optimizes data retrieva ...
... This session explores how to tune Oracle Data Provider for .NET (ODP.NET) for fast data retrieval and statement execution. Particular emphasis will be made on new ODP.NET and Oracle Developer Tools for Visual Studio (ODT) tuning features. ODP.NET introduces self-tuning, which optimizes data retrieva ...
Determining the IOPS Needs for Oracle Database on AWS
... production environments, but for other test and development environments the range is usually between 200 and 2,000 IOPS. Some online transaction processing (OLTP) systems go up to 60,000 IOPS. There certainly are Oracle databases that use more than 60,000 IOPS, but that is not the norm. If you see ...
... production environments, but for other test and development environments the range is usually between 200 and 2,000 IOPS. Some online transaction processing (OLTP) systems go up to 60,000 IOPS. There certainly are Oracle databases that use more than 60,000 IOPS, but that is not the norm. If you see ...
Heterogeneous Distributed Database Management: The HD-DBMS
... What would be greatly desired to enhance the attractiveness and usefulnessof sharingdata resources in a heterogeneous network, as shown in Fig. 1, is the ability for a user to access any database as if it were managed under any one of theDBMS at one central location. Thus a user could have accessto ...
... What would be greatly desired to enhance the attractiveness and usefulnessof sharingdata resources in a heterogeneous network, as shown in Fig. 1, is the ability for a user to access any database as if it were managed under any one of theDBMS at one central location. Thus a user could have accessto ...
DataGuard_for_RAC_migrations_v2 - Indico
... • The Data Guard based migration procedure has been used this year at CERN: – we migrated all production and validation databases ~15 systems in total – we moved from RHEL 3 to RHEL 4 at the same ...
... • The Data Guard based migration procedure has been used this year at CERN: – we migrated all production and validation databases ~15 systems in total – we moved from RHEL 3 to RHEL 4 at the same ...
Administrator Guide
... Climsoft is very rich in options, some of which are relevant to key entry and QC operators, others are relevant to the System administrator. The System Administrator is responsible for smooth functioning of the system and the flow of data through the system, which ensures that the system delivers th ...
... Climsoft is very rich in options, some of which are relevant to key entry and QC operators, others are relevant to the System administrator. The System Administrator is responsible for smooth functioning of the system and the flow of data through the system, which ensures that the system delivers th ...
OO Databases & XML
... In the context of documents, attributes are part of markup, while subelement contents are part of the basic document contents In the context of data representation, the difference is unclear and may be confusing Same information can be represented in two ways ...
... In the context of documents, attributes are part of markup, while subelement contents are part of the basic document contents In the context of data representation, the difference is unclear and may be confusing Same information can be represented in two ways ...
The Big Bang - NorCal OAUG
... PC at work was unplugged. Consider using console with remote console software Use more than one DBA. Have all DBAs practice entire master task list so they can be interchangeable. Jeff Slavitz - NorCal OAUG Training Day 2008 ...
... PC at work was unplugged. Consider using console with remote console software Use more than one DBA. Have all DBAs practice entire master task list so they can be interchangeable. Jeff Slavitz - NorCal OAUG Training Day 2008 ...
Query Answering Under Exact View Assumption in Local As View
... Definition 5 A tuple t is a certain answer for a query Q in respect to DIS I if t is an answer to Q for every legal global database of I. This term is synonym to ’a sceptical answer’ term used in AI community. A tuple t is a possible answer for a query Q in respect to DIS I, if t is an answer to Q f ...
... Definition 5 A tuple t is a certain answer for a query Q in respect to DIS I if t is an answer to Q for every legal global database of I. This term is synonym to ’a sceptical answer’ term used in AI community. A tuple t is a possible answer for a query Q in respect to DIS I, if t is an answer to Q f ...
Chapter 1
... an overarching multitenant container database. A multitenant container database (CDB) is defined as a database capable of housing one or more pluggable databases. A container is defined as a collection of data files and metadata that exist within a CDB. A pluggable database is a special type of cont ...
... an overarching multitenant container database. A multitenant container database (CDB) is defined as a database capable of housing one or more pluggable databases. A container is defined as a collection of data files and metadata that exist within a CDB. A pluggable database is a special type of cont ...
Database System Architectures
... To avoid overhead of interprocess communication for lock request/grant, each database process operates directly on the lock table data structure (Section 16.1.4) instead of sending requests to lock manager process ...
... To avoid overhead of interprocess communication for lock request/grant, each database process operates directly on the lock table data structure (Section 16.1.4) instead of sending requests to lock manager process ...
MYCH7 - Computing Science
... Every message is completely self-contained No previous interaction is “remembered” by the protocol Tradeoff between ease of implementation and ease of application development: Other functionality has to be built on top ...
... Every message is completely self-contained No previous interaction is “remembered” by the protocol Tradeoff between ease of implementation and ease of application development: Other functionality has to be built on top ...
Table of Contents - CECS Multimedia Communications and
... Most on-line information systems, which provide access to databases by Web, use customized interfaces such as forms, navigation menus, and other browsing mechanisms. According to the authors, the customized interfaces have two important disadvantages. First, they may be too complicated for complex d ...
... Most on-line information systems, which provide access to databases by Web, use customized interfaces such as forms, navigation menus, and other browsing mechanisms. According to the authors, the customized interfaces have two important disadvantages. First, they may be too complicated for complex d ...
An Introduction to Object-Oriented Systems Analysis and
... It will still be too expensive to convert existing databases and information systems to the objectoriented paradigm – However, new information systems will be written using the object-oriented paradigm, but will interface with the traditional database ...
... It will still be too expensive to convert existing databases and information systems to the objectoriented paradigm – However, new information systems will be written using the object-oriented paradigm, but will interface with the traditional database ...
Oracle Database 11gR2 Performance Tuning
... Chapter 7, Improving the Oracle Optimizer is focused on how to help the Oracle Optimizer in choosing the best execution plan using various tools, tricks, and tips, to obtain better performance. You will see the use of hints, statistics, histograms, stored outlines, adaptive cursor sharing, SQL tuni ...
... Chapter 7, Improving the Oracle Optimizer is focused on how to help the Oracle Optimizer in choosing the best execution plan using various tools, tricks, and tips, to obtain better performance. You will see the use of hints, statistics, histograms, stored outlines, adaptive cursor sharing, SQL tuni ...
Simplify Your Database and Application Server
... SQL Access Advisor creates a set of recommendations. • Lets the user decide whether to implement all of its recommendations, or some, or none. In EM - Select the required recommendations. • You are given a choice on how to implement the recommendations. • Schedule a job in the EM to execute the scri ...
... SQL Access Advisor creates a set of recommendations. • Lets the user decide whether to implement all of its recommendations, or some, or none. In EM - Select the required recommendations. • You are given a choice on how to implement the recommendations. • Schedule a job in the EM to execute the scri ...
Managing an Oracle Instance
... SPFILE An SPFILE, new to Oracle9i, is a binary file. The file is not meant to be modified manually and must always reside on the server side. After the file is created it is maintained by the Oracle server. If modified manually, the SPFILE is rendered useless. The SPFILE provides the ability to make ...
... SPFILE An SPFILE, new to Oracle9i, is a binary file. The file is not meant to be modified manually and must always reside on the server side. After the file is created it is maintained by the Oracle server. If modified manually, the SPFILE is rendered useless. The SPFILE provides the ability to make ...
Lecture 6 - Relational Algebra I
... 1. r, s must have the same arity (same number of attributes) 2. The attribute domains must be compatible (e.g., 2nd column of r deals with the same type of values as does the 2nd column of s) E.g. to find all customers with either an account or a loan ...
... 1. r, s must have the same arity (same number of attributes) 2. The attribute domains must be compatible (e.g., 2nd column of r deals with the same type of values as does the 2nd column of s) E.g. to find all customers with either an account or a loan ...
Databases
... • There is hardly a person in America who is not in at least one computer database • When a database security breach occurs in a legitimate organization, its customers lose confidence and might take their business elsewhere Chapter 11: Databases ...
... • There is hardly a person in America who is not in at least one computer database • When a database security breach occurs in a legitimate organization, its customers lose confidence and might take their business elsewhere Chapter 11: Databases ...
InterBase® and MySQL
... Situation: You are developing an application that will deliver substantial savings to your company. The application must be deployed quickly, so minimizing learning and development time is a major consideration. MySQL is not one database but four, so the first decision you have to make is which of t ...
... Situation: You are developing an application that will deliver substantial savings to your company. The application must be deployed quickly, so minimizing learning and development time is a major consideration. MySQL is not one database but four, so the first decision you have to make is which of t ...