mobile computing and databases
... Weak operations access only data in the same cluster. Strict operations allowed database wide access. Two copies of data can be maintained (strict and weak). Clusters defined based on location and user profile. Transaction Proxy: dual transaction of one executed at mobile host which includes only ...
... Weak operations access only data in the same cluster. Strict operations allowed database wide access. Two copies of data can be maintained (strict and weak). Clusters defined based on location and user profile. Transaction Proxy: dual transaction of one executed at mobile host which includes only ...
ChronoShare Design Documentation
... The naming rule for the action data and the file data are different. This is because in ChronoSync [2] we did not consider a participant to move and use a different name prefix during a synchronization session. If that happened, the participant would be treated as if he was a different participant. ...
... The naming rule for the action data and the file data are different. This is because in ChronoSync [2] we did not consider a participant to move and use a different name prefix during a synchronization session. If that happened, the participant would be treated as if he was a different participant. ...
Access 2010: database tasks Page 1 of 14 Access 2010 Help
... Sometimes you need a relational database to track such information — a storehouse of data that has been separated into smaller collections of data (called tables) to eliminate redundancy, and then related together based on common bits of information (called fields). For example, an event planning re ...
... Sometimes you need a relational database to track such information — a storehouse of data that has been separated into smaller collections of data (called tables) to eliminate redundancy, and then related together based on common bits of information (called fields). For example, an event planning re ...
Chapter 7: Managing Data Resources
... _______________________ systems can be slowed down if they require many accesses to the data stored on the disk to carry out the select, join, and project commands. a. ...
... _______________________ systems can be slowed down if they require many accesses to the data stored on the disk to carry out the select, join, and project commands. a. ...
The Relational Model
... Where do ICs Come From? ICs are based upon the semantics of the realworld enterprise that is being described in the database relations. We can check a database instance to see if an IC is violated, but we can NEVER infer that an IC is true by looking at an instance. ...
... Where do ICs Come From? ICs are based upon the semantics of the realworld enterprise that is being described in the database relations. We can check a database instance to see if an IC is violated, but we can NEVER infer that an IC is true by looking at an instance. ...
The World Wide Web
... appropriate data from the records that meet the criteria The World Wide Web: Search engine finds every Web page containing each word or phrase in the query, then prioritizes these based on the priorities in the query TREATMENT OF IMPOSSIBLE OR RIDICULOUS QUERIES Traditional database: DBMS rejects qu ...
... appropriate data from the records that meet the criteria The World Wide Web: Search engine finds every Web page containing each word or phrase in the query, then prioritizes these based on the priorities in the query TREATMENT OF IMPOSSIBLE OR RIDICULOUS QUERIES Traditional database: DBMS rejects qu ...
Tutorial - Teklynx
... The Add New Object window allows you to add multiple objects at once. The objects are grouped according to their type in four tabs: Tables, Views, Procedures ( or Functions) and Synonyms. You may select one or several objects by holding the CTRL key and then press the Add Object button to add these ...
... The Add New Object window allows you to add multiple objects at once. The objects are grouped according to their type in four tabs: Tables, Views, Procedures ( or Functions) and Synonyms. You may select one or several objects by holding the CTRL key and then press the Add Object button to add these ...
PPT
... The set of allowed values for each attribute is called the domain of the attribute Attribute values are (normally) required to be atomic; that is, indivisible The special value null is a member of every domain The null value causes complications in the definition of many operations ...
... The set of allowed values for each attribute is called the domain of the attribute Attribute values are (normally) required to be atomic; that is, indivisible The special value null is a member of every domain The null value causes complications in the definition of many operations ...
Lab Work: SCADA, OPC and Database Systems
... The MatrikonOPC Explorer is a test tool you can use to get data, etc. from different OPC Servers. ...
... The MatrikonOPC Explorer is a test tool you can use to get data, etc. from different OPC Servers. ...
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 ...
BRENDA in 2013: integrated reactions, kinetic data, enzyme
... kinetic or association constants as KM, kcat, KM/kcat for substrates or Ki, IC50 values for inhibitors. For more than 130 000 BRENDA ligands the chemical structure is stored. This allows the display of structural diagrams for the molecules and the chemical reactions. All stored ligand structures are ...
... kinetic or association constants as KM, kcat, KM/kcat for substrates or Ki, IC50 values for inhibitors. For more than 130 000 BRENDA ligands the chemical structure is stored. This allows the display of structural diagrams for the molecules and the chemical reactions. All stored ligand structures are ...
Application Server Performance – A Technical White Paper
... conserve resources and enhance the overall scalability of the system. EJB containers limit the number of stateful session beans instances in memory, by swapping out a stateful bean, saving its conversational state to a hard disk or other storage. This is called passivation. When the original client ...
... conserve resources and enhance the overall scalability of the system. EJB containers limit the number of stateful session beans instances in memory, by swapping out a stateful bean, saving its conversational state to a hard disk or other storage. This is called passivation. When the original client ...
Tutorial: Database Communication in LabVIEW
... Transaction engine - Transactions are sequences of operations that read or write database elements, which are grouped together. Relational engine - Relational objects such as Table, Index, and Referential integrity constraints are implemented in this component. ...
... Transaction engine - Transactions are sequences of operations that read or write database elements, which are grouped together. Relational engine - Relational objects such as Table, Index, and Referential integrity constraints are implemented in this component. ...
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... It can be downloaded from www.mozilla.org Apache Server • The most common web server (or HTTP server) software on the Internet. • Apache is designed as a set of modules, enabling administrators to choose which features they wish to use and making it easy to add features to meet specific needs includ ...
... It can be downloaded from www.mozilla.org Apache Server • The most common web server (or HTTP server) software on the Internet. • Apache is designed as a set of modules, enabling administrators to choose which features they wish to use and making it easy to add features to meet specific needs includ ...
Sync Kit: A persistent client-side database caching toolkit Please share
... allow web applications to remain responsive during these requests, but designing highly responsive web applications in the face of these latencies, especially on bandwidth-impaired devices such as phones, remains a challenge. One way to address the database load problem and latency problem would be ...
... allow web applications to remain responsive during these requests, but designing highly responsive web applications in the face of these latencies, especially on bandwidth-impaired devices such as phones, remains a challenge. One way to address the database load problem and latency problem would be ...
SQL: Programming Motivation JDBC Connections Statements Query
... ResultSet rs = stmt.executeQuery (”SELECT AVG(GPA) FROM Student” + ” WHERE age >= ” + age + ” AND age < ” + (age+10)); // Work on the results: ...
... ResultSet rs = stmt.executeQuery (”SELECT AVG(GPA) FROM Student” + ” WHERE age >= ” + age + ” AND age < ” + (age+10)); // Work on the results: ...
RMAN in the Trenches: Part II
... must use a recovery catalog when backing up a standby database." -- another benefit of catalog "When using Flashback Database with a target time at which a NOLOGGING operation was in progress, block corruption is likely in the database objects and datafiles affected by the NOLOGGING operation." ...
... must use a recovery catalog when backing up a standby database." -- another benefit of catalog "When using Flashback Database with a target time at which a NOLOGGING operation was in progress, block corruption is likely in the database objects and datafiles affected by the NOLOGGING operation." ...
Database Communication in LabVIEW
... Transaction engine - Transactions are sequences of operations that read or write database elements, which are grouped together. Relational engine - Relational objects such as Table, Index, and Referential integrity constraints are implemented in this component. Storage engine - This componen ...
... Transaction engine - Transactions are sequences of operations that read or write database elements, which are grouped together. Relational engine - Relational objects such as Table, Index, and Referential integrity constraints are implemented in this component. Storage engine - This componen ...
User manual - E2R Ewidencja
... 7.1. The main window in E2R Weighing Records .............................................. 49 7.2. Raport for the Materials............................................................................... 52 7.3. Report for Operator .................................................................... ...
... 7.1. The main window in E2R Weighing Records .............................................. 49 7.2. Raport for the Materials............................................................................... 52 7.3. Report for Operator .................................................................... ...
Data Management and Manipulation: Examples for Normalized Databases and Spreadsheets
... (RCA) stenosis (DATASET=CATH). Each procedure may have multiple associated morbidity records containing their patient ID, date of procedure, and morbidity type (DATASET=MORB). The datasets given below will be used in the remaining examples. ...
... (RCA) stenosis (DATASET=CATH). Each procedure may have multiple associated morbidity records containing their patient ID, date of procedure, and morbidity type (DATASET=MORB). The datasets given below will be used in the remaining examples. ...
Access Paths for Data Mining Query Optimizer
... database D is a set of itemsets. Consider two itemsets I1 and I2. We say that I1 supports I2 if I1⊆I2. A frequent itemset X is an itemset which is supported by more than a user-defined number of itemsets in D. Given a userdefined support threshold minsup, the problem of association discovery is to f ...
... database D is a set of itemsets. Consider two itemsets I1 and I2. We say that I1 supports I2 if I1⊆I2. A frequent itemset X is an itemset which is supported by more than a user-defined number of itemsets in D. Given a userdefined support threshold minsup, the problem of association discovery is to f ...
The NoSQL Generation: Embracing the Document Model
... by sacrificing some functionality. For example, there are generally no alternate keys and no foreign keys, no implicit ordering, and no text searching capabilities against the values. These databases are often used for caching website visits and one of the more popular key-value databases, memcache, ...
... by sacrificing some functionality. For example, there are generally no alternate keys and no foreign keys, no implicit ordering, and no text searching capabilities against the values. These databases are often used for caching website visits and one of the more popular key-value databases, memcache, ...