Optimization_Lecture_7
... • There is usually more than one way to retrieve tuples from a relation, if indexes are available and if the query contains selection conditions. • The selection condition comes from a select or a join. • The alternative ways to retrieve tuples from a relation are called access paths. • An access pa ...
... • There is usually more than one way to retrieve tuples from a relation, if indexes are available and if the query contains selection conditions. • The selection condition comes from a select or a join. • The alternative ways to retrieve tuples from a relation are called access paths. • An access pa ...
Module 1: Introduction - Perancangan Basis Data
... The initial “/” denotes root of the document (above the top-level tag) Path expressions are evaluated left to right ...
... The initial “/” denotes root of the document (above the top-level tag) Path expressions are evaluated left to right ...
ppt - CSE, IIT Bombay
... The initial “/” denotes root of the document (above the top-level tag) Path expressions are evaluated left to right ...
... The initial “/” denotes root of the document (above the top-level tag) Path expressions are evaluated left to right ...
Teradata HU
... • Microsoft Windows > Microsoft Windows Server 2003 recommended for new and expanding 5400 motions > Microsoft Windows 2000 supported in 2Q 2005 ...
... • Microsoft Windows > Microsoft Windows Server 2003 recommended for new and expanding 5400 motions > Microsoft Windows 2000 supported in 2Q 2005 ...
Resource Control for Java Database Extensions
... systems use hardware protection and coarse-grained process structure to enforce resource limits. Extensible object-relational database environments, in many ways subsuming the role of an operating system, need to provide the same functionality. ...
... systems use hardware protection and coarse-grained process structure to enforce resource limits. Extensible object-relational database environments, in many ways subsuming the role of an operating system, need to provide the same functionality. ...
An In-Line View to a SQL
... The PROC SQL syntax is myriad and complex but with some simple techniques, we can leverage this powerful procedure to bend the data to our will. In this paper a few examples were shown to enable the reader to start using PROC SQL for common data processing tasks: summarizing data, finding duplicates ...
... The PROC SQL syntax is myriad and complex but with some simple techniques, we can leverage this powerful procedure to bend the data to our will. In this paper a few examples were shown to enable the reader to start using PROC SQL for common data processing tasks: summarizing data, finding duplicates ...
MCA SYLLABUS (Revised in 2012)
... *Two hours will be taken in regular class hours and 2 hours will be taken out side the class hours. Summer Training Program: During summer vacation of second year each student should undergo training in a software or software related industry for 30 working days and they have to present their learni ...
... *Two hours will be taken in regular class hours and 2 hours will be taken out side the class hours. Summer Training Program: During summer vacation of second year each student should undergo training in a software or software related industry for 30 working days and they have to present their learni ...
Document
... Database System Concepts, 5th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... Database System Concepts, 5th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
System Administrator`s
... http://www.oracle.com/technetwork/java/javase/downloads/index.html for a list of operating systems capable of hosting a Java Runtime Environment. We are running Red Hat Enterprise Linux Server 5.8 running on a virtual machine with 2 GB of RAM. 1. PostgreSQL. Available from http://www.postgresql.org/ ...
... http://www.oracle.com/technetwork/java/javase/downloads/index.html for a list of operating systems capable of hosting a Java Runtime Environment. We are running Red Hat Enterprise Linux Server 5.8 running on a virtual machine with 2 GB of RAM. 1. PostgreSQL. Available from http://www.postgresql.org/ ...
Document
... 2. Validation phase: Transaction Ti performs a ``validation test'' to determine if local variables can be written without violating serializability. 3. Write phase: If Ti is validated, the updates are applied to the database; otherwise, Ti is rolled back. The three phases of concurrently executing ...
... 2. Validation phase: Transaction Ti performs a ``validation test'' to determine if local variables can be written without violating serializability. 3. Write phase: If Ti is validated, the updates are applied to the database; otherwise, Ti is rolled back. The three phases of concurrently executing ...
ppt
... The initial “/” denotes root of the document (above the top-level tag) Path expressions are evaluated left to right ...
... The initial “/” denotes root of the document (above the top-level tag) Path expressions are evaluated left to right ...
597 giorgetti - Istituto Nazionale di Oceanografia e di Geofisica
... included to avoid the insertion of duplicate profiles or time series, enforcing additional rules not defined using the integrity constraints. The extracting procedure uses web forms as front-end. Users can select single data sets or choose some search criteria on space and time coordinates, data par ...
... included to avoid the insertion of duplicate profiles or time series, enforcing additional rules not defined using the integrity constraints. The extracting procedure uses web forms as front-end. Users can select single data sets or choose some search criteria on space and time coordinates, data par ...
python-tds Documentation
... Pytds is the top to bottom pure Python TDS implementation, that means cross-platform, and no dependency on ADO or FreeTDS. It supports large parameters (>4000 characters), MARS, timezones, new date types (datetime2, date, time, datetimeoffset). Even though it is implemented in Python performance is ...
... Pytds is the top to bottom pure Python TDS implementation, that means cross-platform, and no dependency on ADO or FreeTDS. It supports large parameters (>4000 characters), MARS, timezones, new date types (datetime2, date, time, datetimeoffset). Even though it is implemented in Python performance is ...
Using SAS with Oracle to Add a Replica of a Large Operational Database to a Data Warehouse
... In this system, access descriptors describe the Oracle data to the SAS system. A view descriptor is used to select all, or a subset, of the data from a table and can then be referenced in a SAS program, as if it were a standard SAS dataset. Using access descriptors, it is possible to map Oracle vari ...
... In this system, access descriptors describe the Oracle data to the SAS system. A view descriptor is used to select all, or a subset, of the data from a table and can then be referenced in a SAS program, as if it were a standard SAS dataset. Using access descriptors, it is possible to map Oracle vari ...
Database Replication techniques - Department of Computer Science
... – Update everywhere does not necessarily distribute the load among sites, Since data is replicated, all sites need to perform the updates. – Unless there is a significant amount of read operations in the overall load, the system might not scale up as more server nodes are added. – Performance can be ...
... – Update everywhere does not necessarily distribute the load among sites, Since data is replicated, all sites need to perform the updates. – Unless there is a significant amount of read operations in the overall load, the system might not scale up as more server nodes are added. – Performance can be ...
Database Design - Normalization and SQL - Photo Project
... picture -- hence no Picture # -- Since Picture # is part of the key we can’t insert • Insertion: If People is are known and likely to be photographed, but haven’t been yet -- there is be no way to include that person in the database • Update: If a Person changes status (e.g. Mary Jones becomes a Stu ...
... picture -- hence no Picture # -- Since Picture # is part of the key we can’t insert • Insertion: If People is are known and likely to be photographed, but haven’t been yet -- there is be no way to include that person in the database • Update: If a Person changes status (e.g. Mary Jones becomes a Stu ...
01L - pjwstk.edu.pl
... 2. network software (when different computers run the database application and Oracle Database, and communicate through a network). ...
... 2. network software (when different computers run the database application and Oracle Database, and communicate through a network). ...
Chapter 17: Parallel Databases
... Choose an attribute as the partitioning attribute. A partitioning vector[vo, v1, ..., vn-2] is chosen. Let v be the partitioning attribute value of a tuple. Tuples such that vi vi+1 go to disk I + 1. Tuples with v < v0 go to disk 0 and tuples with v vn-2 go to disk n-1. E.g., with a partit ...
... Choose an attribute as the partitioning attribute. A partitioning vector[vo, v1, ..., vn-2] is chosen. Let v be the partitioning attribute value of a tuple. Tuples such that vi vi+1 go to disk I + 1. Tuples with v < v0 go to disk 0 and tuples with v vn-2 go to disk n-1. E.g., with a partit ...
Cisco TelePresence Management Suite Analytics Extension Administrator Guide (1.2)
... This document describes the Cisco TelePresence Management Suite Analytics Extension (Cisco TMSAE). Cisco TMSAE is an online analytical processing (OLAP) system for Cisco TelePresence Management Suite (Cisco TMS) that provides advanced reporting functionality for your video network. The extension is ...
... This document describes the Cisco TelePresence Management Suite Analytics Extension (Cisco TMSAE). Cisco TMSAE is an online analytical processing (OLAP) system for Cisco TelePresence Management Suite (Cisco TMS) that provides advanced reporting functionality for your video network. The extension is ...
No Slide Title
... Information about an enterprise is broken up into parts, with each relation storing one part of the information E.g.: account: stores information about accounts depositor: stores information about which customer owns which account customer: stores information about customers Storing all information ...
... Information about an enterprise is broken up into parts, with each relation storing one part of the information E.g.: account: stores information about accounts depositor: stores information about which customer owns which account customer: stores information about customers Storing all information ...
E - Read
... Find the names of all customers with an account at a Brooklyn branch whose account balance is over $1000. customer-name((branch-city = “Brooklyn” balance > 1000 (branch (account depositor))) ...
... Find the names of all customers with an account at a Brooklyn branch whose account balance is over $1000. customer-name((branch-city = “Brooklyn” balance > 1000 (branch (account depositor))) ...
Architectures for MLS Database Management Systems
... erating system [HINK75]. This work documented the design for a highassurance DBMS where the operating system provided all the access control. This was followed by an effort at I.P. Sharp that also developed a model for a multilevel relational DBMS [GROH76, KIRK77]. This model is based on a layered ...
... erating system [HINK75]. This work documented the design for a highassurance DBMS where the operating system provided all the access control. This was followed by an effort at I.P. Sharp that also developed a model for a multilevel relational DBMS [GROH76, KIRK77]. This model is based on a layered ...