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Techniques Everyone Should Know
... AC dates to the mid-1970s and is called Two-Phase Commit (2PC; not to be confused with 2PL above!) [9, 18]. In addition to providing a good overview of 2PC and interactions between the commit protocol and the WAL, the paper here contains two variants of AC that improve its performance. The Presumed ...
... AC dates to the mid-1970s and is called Two-Phase Commit (2PC; not to be confused with 2PL above!) [9, 18]. In addition to providing a good overview of 2PC and interactions between the commit protocol and the WAL, the paper here contains two variants of AC that improve its performance. The Presumed ...
Presentation
... Hibernate • powerful, ultra-high performance object/relational persistence and query service for Java • uses HDLCA (Hibernate DualLayer Cache Architecture) • two levels of cache • Session level- serves one client or session at one time • JVM level- works on a global basis (for different sessions us ...
... Hibernate • powerful, ultra-high performance object/relational persistence and query service for Java • uses HDLCA (Hibernate DualLayer Cache Architecture) • two levels of cache • Session level- serves one client or session at one time • JVM level- works on a global basis (for different sessions us ...
Chapter 9- security
... means in which SQL Server may communicate over the network. An endpoint has a transport, (either HTTP or TCP). You also specify a 'payload', which is one of TSQL, Service_Broker, Database_Mirroring, or SOAP. SOAP must use HTTP, and the others must use TCP. The endpoints, other than TSQL, hav ...
... means in which SQL Server may communicate over the network. An endpoint has a transport, (either HTTP or TCP). You also specify a 'payload', which is one of TSQL, Service_Broker, Database_Mirroring, or SOAP. SOAP must use HTTP, and the others must use TCP. The endpoints, other than TSQL, hav ...
Database Technologies for Electronic Commerce
... the Google-style search box, and queries submitted from such an interface may include neither attribute names nor units. For example, an user searching for a laptop with a processor rated around 800 MHz and around 150 MB of memory might simply submit flaptop 800 150g. This problem also arises in fed ...
... the Google-style search box, and queries submitted from such an interface may include neither attribute names nor units. For example, an user searching for a laptop with a processor rated around 800 MHz and around 150 MB of memory might simply submit flaptop 800 150g. This problem also arises in fed ...
Ontology Working Group Wrap Up
... Acquiring Ontologies Machine Learning Learning from User Practices Reusing existing Ontologies Ontology Merging (resolution of differences/mismatch in representing same or similar things) ...
... Acquiring Ontologies Machine Learning Learning from User Practices Reusing existing Ontologies Ontology Merging (resolution of differences/mismatch in representing same or similar things) ...
A Closer Look
... transactions must be the same as if they had executed serially (serializable) in some order. • Serializable has better performance than serial, but performance might still be inadequate. Database systems offer several isolation levels with different performance ...
... transactions must be the same as if they had executed serially (serializable) in some order. • Serializable has better performance than serial, but performance might still be inadequate. Database systems offer several isolation levels with different performance ...
Practical Database Design and Tuning
... Tuning Queries (contd.): Typical instances for query tuning • If multiple options for join condition are possible, choose one that uses a clustering index and avoid those that contain string comparisons. • The order of tables in the FROM clause may affect the join processing. • Some query optimize ...
... Tuning Queries (contd.): Typical instances for query tuning • If multiple options for join condition are possible, choose one that uses a clustering index and avoid those that contain string comparisons. • The order of tables in the FROM clause may affect the join processing. • Some query optimize ...
CENG 352 Database Management Systems - COW :: Ceng
... • DBMS server provides database query and transaction services to the clients • Sometimes called query and transaction servers • It is common that client and server software run on separate machines. • Two main types of basic DBMS architectures were created under this client/server framework: • Two- ...
... • DBMS server provides database query and transaction services to the clients • Sometimes called query and transaction servers • It is common that client and server software run on separate machines. • Two main types of basic DBMS architectures were created under this client/server framework: • Two- ...
Normalisation
... A database must support a clearly defined language to define the database, view the definition, manipulate the data, and restrict some data values to maintain integrity. ...
... A database must support a clearly defined language to define the database, view the definition, manipulate the data, and restrict some data values to maintain integrity. ...
File Systems and Databases Assessment
... The three disadvantages of a DDBMS are:1. Complexity of management and control – In DDBMS, transaction management, concurrency control, data security, data recovery play important roles to make sure the database is consistent. That is why data management and control is more complex in DDBMS than tha ...
... The three disadvantages of a DDBMS are:1. Complexity of management and control – In DDBMS, transaction management, concurrency control, data security, data recovery play important roles to make sure the database is consistent. That is why data management and control is more complex in DDBMS than tha ...
Informatica 9.0: Database Requirements
... user accounts. If you do not configure the database with these properties, you can encounter problems such as deployment failures or metadata inconsistencies when you run Informatica services. For more information about configuring the database, see the documentation for your database system. Databa ...
... user accounts. If you do not configure the database with these properties, you can encounter problems such as deployment failures or metadata inconsistencies when you run Informatica services. For more information about configuring the database, see the documentation for your database system. Databa ...
Database - AMIS Technology Blog
... • Learn about Java and the Database (Oracle) • Inject (Oracle) Database expertise – in the context of Java development - into your team • Receive a paper with more details on ‘making the database work for you & for ...
... • Learn about Java and the Database (Oracle) • Inject (Oracle) Database expertise – in the context of Java development - into your team • Receive a paper with more details on ‘making the database work for you & for ...
database reverse engineering - Myy server - Haaga
... 9 How Reverse Engineering can be utilized in a process where a database structure is ported from one DBMS to another? ...
... 9 How Reverse Engineering can be utilized in a process where a database structure is ported from one DBMS to another? ...
presentation source - University of Baltimore Home Page
... – Send money electronically – Very large intra-bank systems ...
... – Send money electronically – Very large intra-bank systems ...
Object-Oriented Integration of Legacy Systems - Maintaining
... query and modification of objects in a class, the change of an attribute's value or the change of a relationship or query of related objects. When the Persistence RIG generates the code for an object model, empty stubs for each of the defined hooks are generated that can easily be extended to execut ...
... query and modification of objects in a class, the change of an attribute's value or the change of a relationship or query of related objects. When the Persistence RIG generates the code for an object model, empty stubs for each of the defined hooks are generated that can easily be extended to execut ...
16.Persistence - ics-software
... •Most popular open source framework for object/relational mapping in Java. ...
... •Most popular open source framework for object/relational mapping in Java. ...
Encyclopedia for com..
... Proposed system: The system which we are proposing now is similar to the previous one but, we are newly implementing the searching technique which is used for finding a word or an abbreviation which we want by simply specifying the word in the provided space. To implement this we are using a searchi ...
... Proposed system: The system which we are proposing now is similar to the previous one but, we are newly implementing the searching technique which is used for finding a word or an abbreviation which we want by simply specifying the word in the provided space. To implement this we are using a searchi ...
UNIT-II JAVA-Database Programming
... • Driver: This interface handles the communications with the database server. You will interact directly with Driver objects very rarely. Instead, you use DriverManager objects, which manages objects of this type. It also abstracts the details associated with working with Driver objects • Connection ...
... • Driver: This interface handles the communications with the database server. You will interact directly with Driver objects very rarely. Instead, you use DriverManager objects, which manages objects of this type. It also abstracts the details associated with working with Driver objects • Connection ...
PASS 2003 Review
... • Blurs the line between relational and OLAP • Basis for an AS database • Traditional benefits of OLAP • Query speeds, analytical richness, ease of use ...
... • Blurs the line between relational and OLAP • Basis for an AS database • Traditional benefits of OLAP • Query speeds, analytical richness, ease of use ...
doc - itk.ilstu.edu
... What are intrusions and how do they relate to security? Before being able to select a way to detect intrusions in a database, it’s important to know what constitutes an intrusion and how security needs to be involved. First, it’s important to understand some of the aspects of security. Vieira and Ma ...
... What are intrusions and how do they relate to security? Before being able to select a way to detect intrusions in a database, it’s important to know what constitutes an intrusion and how security needs to be involved. First, it’s important to understand some of the aspects of security. Vieira and Ma ...
distributed database
... • Centralized : A single site is in charge of handling lock and unlock requests for all objects. • Primary Copy: One copy of each object is designated the primary copy. All requests to lock or unlock a copy of this object are handled by the lock manager at the site where the primary copy is stored, ...
... • Centralized : A single site is in charge of handling lock and unlock requests for all objects. • Primary Copy: One copy of each object is designated the primary copy. All requests to lock or unlock a copy of this object are handled by the lock manager at the site where the primary copy is stored, ...
Object and object-relational databases
... – Standard committee for Object oriented databases • ODMG 1.0, 2.0, 3.0 • Object model • ODL = Object Definition Language ...
... – Standard committee for Object oriented databases • ODMG 1.0, 2.0, 3.0 • Object model • ODL = Object Definition Language ...
Versant Object Database
![](https://commons.wikimedia.org/wiki/Special:FilePath/Versant_logo_2007.png?width=300)
Versant Object Database (VOD) is an object database software product developed by Versant Corporation.The Versant Object Database enables developers using object oriented languages to transactionally store their information by allowing the respective language to act as the Data Definition Language (DDL) for the database. In other words, the memory model is the database schema model.In general, persistence in VOD in implemented by declaring a list of classes, then providing a transaction demarcation application programming interface to use cases. Respective language integrations adhere to the constructs of that language, including syntactic and directive sugars.Additional APIs exist, beyond simple transaction demarcation, providing for the more advanced capabilities necessary to address practical issues found when dealing with performance optimization and scalability for systems with large amounts of data, many concurrent users, network latency, disk bottlenecks, etc.