XML and Web Services support in SQL Server 2005
... exist() data type method tests conditions in xml column XQuery or simple XPath can be used used with column name separated by "." select invoice.value('*[1]/@ID','int') ...
... exist() data type method tests conditions in xml column XQuery or simple XPath can be used used with column name separated by "." select invoice.value('*[1]/@ID','int') ...
mod-10
... and as an off-line medium for transferring information from one system to another. Tape jukeboxes used for very large capacity storage ...
... and as an off-line medium for transferring information from one system to another. Tape jukeboxes used for very large capacity storage ...
Database Access
... As this example suggests, any model having more than one indexing set will require more than one relational table to hold its data and results. Databases that consist of multiple tables are a standard feature of relational data management, to be found in all but the simplest ‘‘flat file’’ database p ...
... As this example suggests, any model having more than one indexing set will require more than one relational table to hold its data and results. Databases that consist of multiple tables are a standard feature of relational data management, to be found in all but the simplest ‘‘flat file’’ database p ...
Cross-sectional and Episodic Deduplication in Record Linkage
... linkage of the PRN and PHARMO database is the deduplication of the pregnancy records in the former. The focus of this paper is on this process of deduplication. To successfully deduplicate the PRN database two scenarios have to be taken into account. First a patient can switch from one caregiver to ...
... linkage of the PRN and PHARMO database is the deduplication of the pregnancy records in the former. The focus of this paper is on this process of deduplication. To successfully deduplicate the PRN database two scenarios have to be taken into account. First a patient can switch from one caregiver to ...
Main Title Starts Here Two Lines or More if Necessary
... privilege, object and network level. AUDIT and NOAUDIT statements are used to set up auditing settings. Following views could be used to display auditing settings: ■ DBA_PRIV_AUDIT_OPTS; ■ DBA_STMT_AUDIT_OPTS; ■ DBA_OBJ_AUDIT_OPTS; To remove all audit settings on the statement and privilege level ex ...
... privilege, object and network level. AUDIT and NOAUDIT statements are used to set up auditing settings. Following views could be used to display auditing settings: ■ DBA_PRIV_AUDIT_OPTS; ■ DBA_STMT_AUDIT_OPTS; ■ DBA_OBJ_AUDIT_OPTS; To remove all audit settings on the statement and privilege level ex ...
Oracle Database 12c Global Data Services (Oracle White Paper)
... Many organizations maintain one or more replicas of their production databases in local and/or geographically disparate data centers to meet various business requirements such as high availability, disaster recovery, content localization and caching, scalability, optimal performance for local client ...
... Many organizations maintain one or more replicas of their production databases in local and/or geographically disparate data centers to meet various business requirements such as high availability, disaster recovery, content localization and caching, scalability, optimal performance for local client ...
Deployment of geologic map services using GeoSciML
... GeoSciML-portrayal features are analogous to GeoSciML mapped features with additional text attributes for human consumption, a flatted-relation view of the age, and assignment to a single lithology. The portrayal scheme consists of 'free-text' fields and identifier fields. In robust services the fre ...
... GeoSciML-portrayal features are analogous to GeoSciML mapped features with additional text attributes for human consumption, a flatted-relation view of the age, and assignment to a single lithology. The portrayal scheme consists of 'free-text' fields and identifier fields. In robust services the fre ...
Mobile Database Systems
... Mobile Database Systems (MDS) MDS Data Management Issues Data Broadcast (Broadcast disk) The contents of the broadcast reflects the data demands of mobile units. This can be achieved through data access history, which can be fed to the data broadcasting system. For efficient access the broadcast fi ...
... Mobile Database Systems (MDS) MDS Data Management Issues Data Broadcast (Broadcast disk) The contents of the broadcast reflects the data demands of mobile units. This can be achieved through data access history, which can be fed to the data broadcasting system. For efficient access the broadcast fi ...
Mobile Database Systems
... Mobile Database Systems (MDS) MDS Data Management Issues Data Broadcast (Broadcast disk) The contents of the broadcast reflects the data demands of mobile units. This can be achieved through data access history, which can be fed to the data broadcasting system. For efficient access the broadcast fi ...
... Mobile Database Systems (MDS) MDS Data Management Issues Data Broadcast (Broadcast disk) The contents of the broadcast reflects the data demands of mobile units. This can be achieved through data access history, which can be fed to the data broadcasting system. For efficient access the broadcast fi ...
KorthDB6_ch15
... require that a transaction can lock data items only in the order specified by the partial order (graph-based protocol). Timeout-Based Schemes : a transaction waits for a lock only for a specified amount of time. – After the wait time is out and the transaction is rolled back. (No deadlock!) ...
... require that a transaction can lock data items only in the order specified by the partial order (graph-based protocol). Timeout-Based Schemes : a transaction waits for a lock only for a specified amount of time. – After the wait time is out and the transaction is rolled back. (No deadlock!) ...
SUGI 27: Migrating a Publicly Available Web Database to a SAS(r
... available Web database a SAS OLAP solution. First, the structure of the data was examined and a decision was made whether to create a single MDDB or multiple MDDBs for a given the data source. Next SAS/ACCESS to ODBC and the FORMAT procedure in Base SAS were used to migrate the current system’s meta ...
... available Web database a SAS OLAP solution. First, the structure of the data was examined and a decision was made whether to create a single MDDB or multiple MDDBs for a given the data source. Next SAS/ACCESS to ODBC and the FORMAT procedure in Base SAS were used to migrate the current system’s meta ...
Modular Data Storage with Anvil
... An Anvil table representation will usually consist of several readonly dTables, created at different times, and one writable dTable. Using this representation directly from client code would inconveniently require consultation of all the dTables. In addition, the periodic conversion of write-optimiz ...
... An Anvil table representation will usually consist of several readonly dTables, created at different times, and one writable dTable. Using this representation directly from client code would inconveniently require consultation of all the dTables. In addition, the periodic conversion of write-optimiz ...
Codeigniter Development is one of the best PHP framework in web
... automatically. In order to double check the security threats against XSS attacks, a Firefox add-on called XXS Me (download here) can be used to test the sample application against 96 different types of attacks. The results are shown in the image below. It shows that the all form input fields were no ...
... automatically. In order to double check the security threats against XSS attacks, a Firefox add-on called XXS Me (download here) can be used to test the sample application against 96 different types of attacks. The results are shown in the image below. It shows that the all form input fields were no ...
Mobile Database Systems
... Mobile Database Systems (MDS) MDS Data Management Issues Data Broadcast (Broadcast disk) The contents of the broadcast reflects the data demands of mobile units. This can be achieved through data access history, which can be fed to the data broadcasting system. For efficient access the broadcast fi ...
... Mobile Database Systems (MDS) MDS Data Management Issues Data Broadcast (Broadcast disk) The contents of the broadcast reflects the data demands of mobile units. This can be achieved through data access history, which can be fed to the data broadcasting system. For efficient access the broadcast fi ...
Relationship Sets
... Express the number of entities to which another entity can be associated via a relationship set. Most useful in describing binary relationship sets. For a binary relationship set the mapping cardinality must be one of the following types: One-to-one One-to-many Many-to-one Many-to-many ...
... Express the number of entities to which another entity can be associated via a relationship set. Most useful in describing binary relationship sets. For a binary relationship set the mapping cardinality must be one of the following types: One-to-one One-to-many Many-to-one Many-to-many ...
SAP Business Objects Universe
... and are sold in over 10 countries. GBI’s signature composite frames are world-renowned for their strength, low weight and easy maintenance. GBI bikes are consistently ridden in the Tour de France and other major international road races. GBI produces two models of their signature road bikes, a delux ...
... and are sold in over 10 countries. GBI’s signature composite frames are world-renowned for their strength, low weight and easy maintenance. GBI bikes are consistently ridden in the Tour de France and other major international road races. GBI produces two models of their signature road bikes, a delux ...
Implementing a Taxonomy
... use of taxonomy dimensions. Lastly, it provides faster time to deployment. The disadvantages of this approach include scalability, performance, and documentation issues. Scalability issues may arise if a certain threshold is reached within the content table, depending on the specific DBMS used. Perf ...
... use of taxonomy dimensions. Lastly, it provides faster time to deployment. The disadvantages of this approach include scalability, performance, and documentation issues. Scalability issues may arise if a certain threshold is reached within the content table, depending on the specific DBMS used. Perf ...
Database Recovery
... modified the database Some database modification made by committed transaction still in the buffer did not have time to write database ...
... modified the database Some database modification made by committed transaction still in the buffer did not have time to write database ...
slides - CS 491/591: Cloud Computing
... • There must exist a total order on all operations such that each operation looks as if it were completed at a single instant • This is not the same as the Atomic requirement in ACID ...
... • There must exist a total order on all operations such that each operation looks as if it were completed at a single instant • This is not the same as the Atomic requirement in ACID ...
lesson16
... • If you really want to speed up the process, you can perform backups to multiple devices at the same time. • If you want to do this with tape devices, you need more than one local tape drive in the SQL Server machine. • This type of backup uses multiple devices in parallel and writes the data in st ...
... • If you really want to speed up the process, you can perform backups to multiple devices at the same time. • If you want to do this with tape devices, you need more than one local tape drive in the SQL Server machine. • This type of backup uses multiple devices in parallel and writes the data in st ...
Evaluating and Comparing Oracle Database Appliance X6
... a missing post from DBWR that can cause buffer busy waits. As a workaround the _buffer_busy_wait_timeout parameter should be set to 20ms. ...
... a missing post from DBWR that can cause buffer busy waits. As a workaround the _buffer_busy_wait_timeout parameter should be set to 20ms. ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.