ppt
... For AV (r) just scan leaf pages of index finding pointers to records, till first entry > v In either case, retrieve records that are pointed to – requires an I/O for each record – Linear file scan may be cheaper if many records are to be fetched! ...
... For AV (r) just scan leaf pages of index finding pointers to records, till first entry > v In either case, retrieve records that are pointed to – requires an I/O for each record – Linear file scan may be cheaper if many records are to be fetched! ...
contained database authentication
... The Always On Availability Groups feature is a high-availability and disaster-recovery solution. Introduced in SQL Server 2012, Always On Availability Groups maximizes the availability of a set of user databases for a company. Important note: An availability group fails over at the level of an avail ...
... The Always On Availability Groups feature is a high-availability and disaster-recovery solution. Introduced in SQL Server 2012, Always On Availability Groups maximizes the availability of a set of user databases for a company. Important note: An availability group fails over at the level of an avail ...
Microsoft SQL Server I/O Internals
... How It Works: SQL Server 2005 Database Snapshots (Replica) http://blogs.msdn.com/psssql/archive/2008/02/07/how-it-works-sql-server-2005-database-snapshots-replica.aspx How It Works: File Stream the Before and After Image of a File http://blogs.msdn.com/psssql/archive/2008/01/15/how-it-works-file-str ...
... How It Works: SQL Server 2005 Database Snapshots (Replica) http://blogs.msdn.com/psssql/archive/2008/02/07/how-it-works-sql-server-2005-database-snapshots-replica.aspx How It Works: File Stream the Before and After Image of a File http://blogs.msdn.com/psssql/archive/2008/01/15/how-it-works-file-str ...
Lecture 1 - Department of Computer Science
... IMS from IBM, Hierarchical Data Model IMS DB/DC, Network Model and communication SABRE, multi-user access with network ...
... IMS from IBM, Hierarchical Data Model IMS DB/DC, Network Model and communication SABRE, multi-user access with network ...
Chapter 17: Parallel Databases
... ■ Queries/transactions execute in parallel with one another. ■ Increases transaction throughput; used primarily to scale up a ...
... ■ Queries/transactions execute in parallel with one another. ■ Increases transaction throughput; used primarily to scale up a ...
CS 46B: Introduction to Data Structures
... Databases Illuminated, 3rd ed. by Ricardo & Urban Jones & Bartlett Learning, 2017 ISBN 978-1-284-05694-5 ...
... Databases Illuminated, 3rd ed. by Ricardo & Urban Jones & Bartlett Learning, 2017 ISBN 978-1-284-05694-5 ...
MySQL Cluster DataSheet
... Geographic Replication to distribute databases to remote sites, serving to reduce the affects of network latency in addition to providing Disaster Recovery. The conflict detection mechanisms built in to Geographic Replication enable each MySQL Cluster in every data center to be fully active, resolvi ...
... Geographic Replication to distribute databases to remote sites, serving to reduce the affects of network latency in addition to providing Disaster Recovery. The conflict detection mechanisms built in to Geographic Replication enable each MySQL Cluster in every data center to be fully active, resolvi ...
How to Migrate Your Backend from Access to SQL Server 2000
... The purpose of the Upsizing Wizard is to migrate your backend (i.e. database and database objects such as tables, relationships and indexes) to a SQL Server environment. SQL Server differs from Access in that it is purely a database management system (DBMS). It does not have frontend functionality s ...
... The purpose of the Upsizing Wizard is to migrate your backend (i.e. database and database objects such as tables, relationships and indexes) to a SQL Server environment. SQL Server differs from Access in that it is purely a database management system (DBMS). It does not have frontend functionality s ...
Selectivity Estimation using Probabilistic Models Lise Getoor Ben Taskar Daphne Koller
... value spaces and to range queries. ...
... value spaces and to range queries. ...
Hibernate
... From relational databases (e.g.Oracle, MySQL) to object oriented (OO) programming languages (e.g. Java) and back ORM can be viewed as the automated and transparent persistence of objects in a Java application to the database tables in an RDBMS using metadata that describes the mapping between the ob ...
... From relational databases (e.g.Oracle, MySQL) to object oriented (OO) programming languages (e.g. Java) and back ORM can be viewed as the automated and transparent persistence of objects in a Java application to the database tables in an RDBMS using metadata that describes the mapping between the ob ...
Upgrading to SQL Server 2008
... Updates an existing installation while preserving user data Instance name remains the same Automated process Similar to 20002005 upgrade ...
... Updates an existing installation while preserving user data Instance name remains the same Automated process Similar to 20002005 upgrade ...
Slide 1
... Lots of improvements – Features solutions Lots of complexity – Architecture and Planning “with great power comes greater responsibility” ...
... Lots of improvements – Features solutions Lots of complexity – Architecture and Planning “with great power comes greater responsibility” ...
Efficient Query Optimization for Distributed Join in Database
... Database federation is one approach to data integration, in which a middleware, called mediator, provides uniform access to a number of heterogeneous data sources. For the mediator, two key components are query rewriter and query optimizer. In this thesis, we focus on the query optimizer part, parti ...
... Database federation is one approach to data integration, in which a middleware, called mediator, provides uniform access to a number of heterogeneous data sources. For the mediator, two key components are query rewriter and query optimizer. In this thesis, we focus on the query optimizer part, parti ...
2005-04-18 - LateNightHacking.com
... structure set up. Refactor mercilessly. • Especially if you need canned data that is ancillary to the test, it is often worth while to factor creation out into a static method in a utility class (object mother) so you can use it as necessary thereafter. ...
... structure set up. Refactor mercilessly. • Especially if you need canned data that is ancillary to the test, it is often worth while to factor creation out into a static method in a utility class (object mother) so you can use it as necessary thereafter. ...
ppt
... Loss of parallelism that results from waiting until there isno possibility of dirty read ...
... Loss of parallelism that results from waiting until there isno possibility of dirty read ...
the lhc logging
... according to their priorities. These priorities will be discussed with the community of users. Functionality may also be subject to changes driven by the acceptance of particular features by the users and by their requests. These features will be reflected in future releases of the document. This ar ...
... according to their priorities. These priorities will be discussed with the community of users. Functionality may also be subject to changes driven by the acceptance of particular features by the users and by their requests. These features will be reflected in future releases of the document. This ar ...
Oracle DB Security
... audit ROLE BY ACCESS; audit SYSTEM audit BY ACCESS; audit SYSTEM GRANT BY ACCESS; audit create any table by access; audit alter any table by access; audit drop any table by access; audit CREATE ROLE by access; audit CREATE JOB BY ACCESS; audit CREATE ANY JOB BY ACCESS; audit audit SYSTEM BY ACCESS; ...
... audit ROLE BY ACCESS; audit SYSTEM audit BY ACCESS; audit SYSTEM GRANT BY ACCESS; audit create any table by access; audit alter any table by access; audit drop any table by access; audit CREATE ROLE by access; audit CREATE JOB BY ACCESS; audit CREATE ANY JOB BY ACCESS; audit audit SYSTEM BY ACCESS; ...
Chapter 4: Advanced SQL - United International College
... An assertion is a predicate expressing a condition that we wish the ...
... An assertion is a predicate expressing a condition that we wish the ...
Representing Weak Entity Sets
... columns for the primary keys of the two participating entity sets, and any descriptive attributes of the relationship set. E.g.: table for relationship set borrower ...
... columns for the primary keys of the two participating entity sets, and any descriptive attributes of the relationship set. E.g.: table for relationship set borrower ...
JOXM: Java Object — XML Mapping
... JOXM. JOXM library is composed of several modular components, as illustrated in Figure 2. The JOXM library has one main package, edu.cp.joxm, composing two subpackages: edu.cp.joxm.annotations and edu.cp.joxm.aspects. The main package contains four classes designed to provide the core interfaces: (1 ...
... JOXM. JOXM library is composed of several modular components, as illustrated in Figure 2. The JOXM library has one main package, edu.cp.joxm, composing two subpackages: edu.cp.joxm.annotations and edu.cp.joxm.aspects. The main package contains four classes designed to provide the core interfaces: (1 ...