Transactional Replication Performance Tuning and Optimization
... log. Any transactions that affect the tables while the snapshot is being generated are captured between these beginning and ending tokens and forwarded to the distribution database by the Log Reader Agent. When the snapshot is applied at the Subscriber, the Distribution Agent first applies the snaps ...
... log. Any transactions that affect the tables while the snapshot is being generated are captured between these beginning and ending tokens and forwarded to the distribution database by the Log Reader Agent. When the snapshot is applied at the Subscriber, the Distribution Agent first applies the snaps ...
overview talk - UCSB Computer Science
... Transaction atomicity and durability Recover migration state after failure ...
... Transaction atomicity and durability Recover migration state after failure ...
Towards a solution to the proper integration of a
... couples the inference mechanism with a database management system; and the third extends a database management mechanism to include inference. ...
... couples the inference mechanism with a database management system; and the third extends a database management mechanism to include inference. ...
Database System Architecture and Implementation
... ! But… Why don’t we write pages back to disk during unpin()? Of course, this is a possibility… ⊕ recovery from failure would be a lot simpler ⊖ higher I/O cost (every page write implies a write to disk) ⊖ bad response time for writing transactions This discussion is also know as force (or write-th ...
... ! But… Why don’t we write pages back to disk during unpin()? Of course, this is a possibility… ⊕ recovery from failure would be a lot simpler ⊖ higher I/O cost (every page write implies a write to disk) ⊖ bad response time for writing transactions This discussion is also know as force (or write-th ...
Chapter 3
... Oracle Managed Files (continued) • Main disadvantage: inability to control exact size and name of datafiles, control files, and log files • You can create some files as user-managed files and leave others as OMF in the same database • Specify values in these initialization parameters: ...
... Oracle Managed Files (continued) • Main disadvantage: inability to control exact size and name of datafiles, control files, and log files • You can create some files as user-managed files and leave others as OMF in the same database • Specify values in these initialization parameters: ...
四川大学 IBM 技术中心 ... Pre-Assessment/Sample Test for Test /Exam 701-DB2 UDB V8.1for Linux, UNIX...
... 53．Which of the following commands loads data into a table and updates the catalog statistics for that table? A．LOAD FROM data.ixf OF IXF INSERT INTO dept1.assets STATISTICS YES B．LOAD FROM data.ixf OF IXF CREATE INTO dept1.assets STATISTICS YES C．LOAD FROM data.ixf OF IXF UPDATE INTO dept1.assets S ...
... 53．Which of the following commands loads data into a table and updates the catalog statistics for that table? A．LOAD FROM data.ixf OF IXF INSERT INTO dept1.assets STATISTICS YES B．LOAD FROM data.ixf OF IXF CREATE INTO dept1.assets STATISTICS YES C．LOAD FROM data.ixf OF IXF UPDATE INTO dept1.assets S ...
R - delab-auth
... Take the attribute affinity matrix AA and reorganize the attribute orders to form clusters where the attributes in each cluster demonstrate high affinity to one another. Bond Energy Algorithm (BEA) has been used for clustering of entities. BEA finds an ordering of entities (in our case attributes) s ...
... Take the attribute affinity matrix AA and reorganize the attribute orders to form clusters where the attributes in each cluster demonstrate high affinity to one another. Bond Energy Algorithm (BEA) has been used for clustering of entities. BEA finds an ordering of entities (in our case attributes) s ...
Views
... Example: If “Biology” is a department name appearing in one of the tuples in the instructor relation, then there exists a tuple in the department relation for “Biology”. ...
... Example: If “Biology” is a department name appearing in one of the tuples in the instructor relation, then there exists a tuple in the department relation for “Biology”. ...
Determining the IOPS Needs for Oracle Database on AWS
... and provision Amazon EBS volumes on AWS accordingly so that you get the best performance even with peak load. If you choose an IOPS number based on average IOPS used by your existing database, then you will have sufficient IOPS to service the database in most cases but database performance will suff ...
... and provision Amazon EBS volumes on AWS accordingly so that you get the best performance even with peak load. If you choose an IOPS number based on average IOPS used by your existing database, then you will have sufficient IOPS to service the database in most cases but database performance will suff ...
- Courses - University of California, Berkeley
... database, DA and DBA are responsible for developing procedures that ensure the integrity and security of the database during the update process. • Specific responsibility for data collection, editing and verification must be assigned • Quality assurance must be practiced to protect and audit the dat ...
... database, DA and DBA are responsible for developing procedures that ensure the integrity and security of the database during the update process. • Specific responsibility for data collection, editing and verification must be assigned • Quality assurance must be practiced to protect and audit the dat ...
SQL Query Dissembler –A Self Optimizing Autonomic
... breaks up a large query into a set of equivalent smaller queries is discussed in detail. Our experiments show that concurrent execution of large resource-intensive queries can have significant impact on the performance of other workloads, especially as the points of contention between the workloads ...
... breaks up a large query into a set of equivalent smaller queries is discussed in detail. Our experiments show that concurrent execution of large resource-intensive queries can have significant impact on the performance of other workloads, especially as the points of contention between the workloads ...
TEST - learn
... •Production data is secure, security will prevent access to sensitive data & client settings will prevent the unauthorized changing of data . •Production performance is not affected by other clients, there is only one production client . •The general sandbox client (SAND) in the development system ( ...
... •Production data is secure, security will prevent access to sensitive data & client settings will prevent the unauthorized changing of data . •Production performance is not affected by other clients, there is only one production client . •The general sandbox client (SAND) in the development system ( ...
How to Backup a Database in SQL Server
... However, if you database is in Simple recovery model you will not be able to take a Transactional log backup. This is by design from Microsoft. 5. If you want to perform a Copy-Only backup of a database then choose CopyOnly Backup option in Back Up Database Dialog box. Using copy-only backup option ...
... However, if you database is in Simple recovery model you will not be able to take a Transactional log backup. This is by design from Microsoft. 5. If you want to perform a Copy-Only backup of a database then choose CopyOnly Backup option in Back Up Database Dialog box. Using copy-only backup option ...
Introduction to SQL Server and MySQL
... Select one of the Windows accounts in a typical Windows fashion Leave the authentication method set to Windows ...
... Select one of the Windows accounts in a typical Windows fashion Leave the authentication method set to Windows ...
2. Introduction-to-MS-SQL-Server
... Select one of the Windows accounts in a typical Windows fashion Leave the authentication method set to Windows ...
... Select one of the Windows accounts in a typical Windows fashion Leave the authentication method set to Windows ...
Relational Database Design - State University of New York
... • The table below describes the assignment of a police officer (o) to drive a certain vehicle (v) during a certain shift (s) on a certain day (d). The assignment is given a certain readiness level (r ) that depends on the skills of the officer and the equipment in the vehicle. The weather (w) is a f ...
... • The table below describes the assignment of a police officer (o) to drive a certain vehicle (v) during a certain shift (s) on a certain day (d). The assignment is given a certain readiness level (r ) that depends on the skills of the officer and the equipment in the vehicle. The weather (w) is a f ...
Multiple Choice Tutorial
... together with a processor, control units, channels and so forth. The database is assumed to be too large to be held in its entirety in the computer's primary storage, therefore there is a need for software to manage that data. ...
... together with a processor, control units, channels and so forth. The database is assumed to be too large to be held in its entirety in the computer's primary storage, therefore there is a need for software to manage that data. ...
download
... For each base relation one candidate key is selected as the primary key. For a given database, those domains upon which the simple (i.e., single-attribute) primary keys are defined are called the primary domains of that database. Note that not all component attributes of a compound (i.e., multiattri ...
... For each base relation one candidate key is selected as the primary key. For a given database, those domains upon which the simple (i.e., single-attribute) primary keys are defined are called the primary domains of that database. Note that not all component attributes of a compound (i.e., multiattri ...
Managing Update Conflicts in Bayou, a Weakly Connected
... Instead, clients can read data at all times, including data whose conflicts have not been fully resolved either because human intervention M needed or because other conflicting updates may be propagating through the system. Bayou provides interfaces that make the state of a replica’s data apparent t ...
... Instead, clients can read data at all times, including data whose conflicts have not been fully resolved either because human intervention M needed or because other conflicting updates may be propagating through the system. Bayou provides interfaces that make the state of a replica’s data apparent t ...
Managing Update Conflicts in Bayou, a Weakly Connected Replicated Storage System
... Instead, clients can read data at all times, including data whose conflicts have not been fully resolved either because human intervention M needed or because other conflicting updates may be propagating through the system. Bayou provides interfaces that make the state of a replica’s data apparent t ...
... Instead, clients can read data at all times, including data whose conflicts have not been fully resolved either because human intervention M needed or because other conflicting updates may be propagating through the system. Bayou provides interfaces that make the state of a replica’s data apparent t ...
cos346day3 - Ecom and COS classes
... SQL Server's open connectivity functionality provides uninterrupted access to the database throughout the day. It also provides open connectivity to and from other vendors’ software. SQL Server provides a wide range of development tools, end-user query tools, and support for third-party software app ...
... SQL Server's open connectivity functionality provides uninterrupted access to the database throughout the day. It also provides open connectivity to and from other vendors’ software. SQL Server provides a wide range of development tools, end-user query tools, and support for third-party software app ...
Discovery and Maintenance of Functional Dependencies by Independencies
... hash-function in order to avoid redundant computations. However, he does not use a complete inference relation even regarding functional dependencies. Also do Dehaspeet al. because their inferences are based on ® subsumption. In addition, the verification is based on theorem proving which is not sui ...
... hash-function in order to avoid redundant computations. However, he does not use a complete inference relation even regarding functional dependencies. Also do Dehaspeet al. because their inferences are based on ® subsumption. In addition, the verification is based on theorem proving which is not sui ...
Week 5 (10/02/12): Lecture Notes
... There are many standards of API’s. For DBMSindependent usage, the most common ones are ODBC and JDBC. ODBC goal is to make it possible to access any data (relational or non-relational) from any application, regardless of which DBMS is handling the data. JDBC is for between the Java programming lan ...
... There are many standards of API’s. For DBMSindependent usage, the most common ones are ODBC and JDBC. ODBC goal is to make it possible to access any data (relational or non-relational) from any application, regardless of which DBMS is handling the data. JDBC is for between the Java programming lan ...