- Courses - University of California, Berkeley
... • Many physical database design decisions are implicit in the technology adopted – Also, organizations may have standards or an “information architecture” that specifies operating systems, DBMS, and data access languages -- thus constraining the range of possible physical implementations. ...
... • Many physical database design decisions are implicit in the technology adopted – Also, organizations may have standards or an “information architecture” that specifies operating systems, DBMS, and data access languages -- thus constraining the range of possible physical implementations. ...
FACT SHEET MANAGED SERVICES FOR DATABASES
... Fujitsu and the Fujitsu logo are trademarks or registered trademarks of Fujitsu Limited in the United States and other countries. Macroscope is a trademark or registered trademark of Fujitsu Consulting (Canada), Inc. in the United States and other countries. Microsoft, Windows Server, and SQL Server ...
... Fujitsu and the Fujitsu logo are trademarks or registered trademarks of Fujitsu Limited in the United States and other countries. Macroscope is a trademark or registered trademark of Fujitsu Consulting (Canada), Inc. in the United States and other countries. Microsoft, Windows Server, and SQL Server ...
branch-name
... Vertically partition relations to isolate the data that is accessed most often -- only fetch needed information. • E.g., split account into two, (account-number, branch-name) and (account-number, balance). • Branch-name need not be fetched unless required Improve performance by storing a denorma ...
... Vertically partition relations to isolate the data that is accessed most often -- only fetch needed information. • E.g., split account into two, (account-number, branch-name) and (account-number, balance). • Branch-name need not be fetched unless required Improve performance by storing a denorma ...
Security - Computer Science and Engineering Department
... of blocks. 2. RAID 1 - Mirrored: This level maintains (mirrors) two identical copies of the data across different disks. To maintain consistency in the presence of disk failure, writes may not performed simultaneously. This is the most expensive storage solution. 3. RAID 0+1 - Nonredundant and Mirro ...
... of blocks. 2. RAID 1 - Mirrored: This level maintains (mirrors) two identical copies of the data across different disks. To maintain consistency in the presence of disk failure, writes may not performed simultaneously. This is the most expensive storage solution. 3. RAID 0+1 - Nonredundant and Mirro ...
Data Modeling and Database Design Using ERwin
... Supported Database Management Systems 1. IBM DB2 2. IBM AS/400 3. ORACLE 4. MS SQL Server 5. InterBase 6. SYBASE 7. PROGRESS 8. INFORMIX 9. Ingres ...
... Supported Database Management Systems 1. IBM DB2 2. IBM AS/400 3. ORACLE 4. MS SQL Server 5. InterBase 6. SYBASE 7. PROGRESS 8. INFORMIX 9. Ingres ...
Capacity Planning with Oracle
... Datafile sizes. Get datafile sizes of all data containing datafiles from the operating system. This method could be the most inaccurate of all. Datafile content sizes. This method requires a join on the DBA_DATA_FILES and DBA_FREE_SPACE performance views. This method accumulates values based on ...
... Datafile sizes. Get datafile sizes of all data containing datafiles from the operating system. This method could be the most inaccurate of all. Datafile content sizes. This method requires a join on the DBA_DATA_FILES and DBA_FREE_SPACE performance views. This method accumulates values based on ...
Oracle NoSQL Database, 12.1.4.0.9 Enterprise Edition
... warranties or conditions, whether expressed orally or implied in law, including implied warranties and conditions of merchantability or fitness for a particular purpose. We specifically disclaim any liability with respect to this document, and no contractual obligations are formed either directly or ...
... warranties or conditions, whether expressed orally or implied in law, including implied warranties and conditions of merchantability or fitness for a particular purpose. We specifically disclaim any liability with respect to this document, and no contractual obligations are formed either directly or ...
Chapter 3 Notes
... stored: tracks, cylinders, indices etc. • Early applications worked at this level – explicitly dealt with details. • Problem: Routines were hard-coded to deal with physical representation. – Changes to data structure difficult to make. – Application code becomes complex since it must deal with detai ...
... stored: tracks, cylinders, indices etc. • Early applications worked at this level – explicitly dealt with details. • Problem: Routines were hard-coded to deal with physical representation. – Changes to data structure difficult to make. – Application code becomes complex since it must deal with detai ...
Database Configuration and Maintenance
... Configuring Files and Filegroups SQL Server uses two different types of files— data and transaction log files. Filegroups are a logical structure, defined within a database, that map a database and the objects contained within a database, to the data files on disk. Filegroups can contain more than o ...
... Configuring Files and Filegroups SQL Server uses two different types of files— data and transaction log files. Filegroups are a logical structure, defined within a database, that map a database and the objects contained within a database, to the data files on disk. Filegroups can contain more than o ...
download
... Lookingat database performancein terms of TPQdoes not help identify the areas for improvement. It does not identify the commoncase. Amdahl’sLawstates that the performance improvementto be gained from using somefaster modeof execution is limited by the fraction of time the faster modecan be used [Hen ...
... Lookingat database performancein terms of TPQdoes not help identify the areas for improvement. It does not identify the commoncase. Amdahl’sLawstates that the performance improvementto be gained from using somefaster modeof execution is limited by the fraction of time the faster modecan be used [Hen ...
END. Best Practice
... Has a customer, your partners or your company ever asked you: “Does your OpenEdge Application run against” MS SQL Server ? Oracle® ? Some other data source ? ...
... Has a customer, your partners or your company ever asked you: “Does your OpenEdge Application run against” MS SQL Server ? Oracle® ? Some other data source ? ...
Automatic Workload Driven Index Defragmentation
... determining if an index should be defragmented is challenging for database administrators (DBAs) since today’s database engines offer no support for quantifying the impact of defragmenting an index on query I/O performance. Furthermore, DBMSs only support defragmentation at the granularity of an ent ...
... determining if an index should be defragmented is challenging for database administrators (DBAs) since today’s database engines offer no support for quantifying the impact of defragmenting an index on query I/O performance. Furthermore, DBMSs only support defragmentation at the granularity of an ent ...
COMP9321 Web Application Engineering Semester 2, 2015
... • The relational data model is often the common enterprise wide presentation of business entities. (Hibernate, pp.5-29) COMP9321, 15s2, Week 6 ...
... • The relational data model is often the common enterprise wide presentation of business entities. (Hibernate, pp.5-29) COMP9321, 15s2, Week 6 ...
Document
... – Schemas of input relations for a query are fixed (but query will run over any legal instance) – The schema for the result of a given query is also fixed. It is determined by the definitions of the query language constructs. • Positional vs. named-field notation: – Positional notation easier for fo ...
... – Schemas of input relations for a query are fixed (but query will run over any legal instance) – The schema for the result of a given query is also fixed. It is determined by the definitions of the query language constructs. • Positional vs. named-field notation: – Positional notation easier for fo ...
Oracle RAC Installation
... You will need a Shared Disk Subsystem - Can be anything that supports a raw device - Must be addressable from all nodes - The higher the speed the better (FDDI, GigaBit) You will need a 2nd NIC for the Inter Instance Network - Can be ‘any’ network connection - The higher the speed the better (FD ...
... You will need a Shared Disk Subsystem - Can be anything that supports a raw device - Must be addressable from all nodes - The higher the speed the better (FDDI, GigaBit) You will need a 2nd NIC for the Inter Instance Network - Can be ‘any’ network connection - The higher the speed the better (FD ...
Manipulating Data
... A more efficient method of emptying a table is with the TRUNCATE statement. You can use the TRUNCATE statement to quickly remove all rows from a table or cluster. Removing rows with the TRUNCATE statement is faster than removing them with the DELETE statement for the following reasons: • The TRUNCAT ...
... A more efficient method of emptying a table is with the TRUNCATE statement. You can use the TRUNCATE statement to quickly remove all rows from a table or cluster. Removing rows with the TRUNCATE statement is faster than removing them with the DELETE statement for the following reasons: • The TRUNCAT ...
Transaction Management
... is allowed to access the partially updated database, it will see an inconsistent database (the sum A + B will be less than it should be). Can be ensured trivially by running transactions serially, that is one after the other. However, executing multiple transactions concurrently has significant bene ...
... is allowed to access the partially updated database, it will see an inconsistent database (the sum A + B will be less than it should be). Can be ensured trivially by running transactions serially, that is one after the other. However, executing multiple transactions concurrently has significant bene ...
Table of Content - California State University, Long Beach
... - i.e., "A is a superkey of table T" means "A functionally determines values of other columns in table T". Candidate key: non-reducible unique identifier - A super key without the redundancy, or, a "minimal" superkey. - There can be several candidate keys in one table. - i.e., "A is a candidate key ...
... - i.e., "A is a superkey of table T" means "A functionally determines values of other columns in table T". Candidate key: non-reducible unique identifier - A super key without the redundancy, or, a "minimal" superkey. - There can be several candidate keys in one table. - i.e., "A is a candidate key ...
ODBC - AServInt, Inc.
... database access method developed by the SQL Access group in 1992. The goal of ODBC is to make it possible to access any data from any application, regardless of which database management system (DBMS) is handling the data. ODBC manages this by inserting a middle layer, called a database driver , bet ...
... database access method developed by the SQL Access group in 1992. The goal of ODBC is to make it possible to access any data from any application, regardless of which database management system (DBMS) is handling the data. ODBC manages this by inserting a middle layer, called a database driver , bet ...
Administering Websense Databases
... increasing RAM may provide noticeable performance improvements. Keep in mind that the operating system version and/or the version of SQL Server may limit the amount of physical RAM that can be used by the system. For example, Windows Server 2008 Standard Edition supports SQL Server 2008 running with ...
... increasing RAM may provide noticeable performance improvements. Keep in mind that the operating system version and/or the version of SQL Server may limit the amount of physical RAM that can be used by the system. For example, Windows Server 2008 Standard Edition supports SQL Server 2008 running with ...
T-SQL Deployment and Continuous Integration Best Practices
... that dev can and be Optionally and update If any part of the CI process fails, the used by the application for its own test environments ‘build’ is deemed broken and Each time the build is successful, publish unit tests developers are alerted immediately updated database documentation Grant Fritchey ...
... that dev can and be Optionally and update If any part of the CI process fails, the used by the application for its own test environments ‘build’ is deemed broken and Each time the build is successful, publish unit tests developers are alerted immediately updated database documentation Grant Fritchey ...
