Unit-2
... • SQL SELECT command to fetch data from MySQL table. When you select rows, the MySQL server is free to return them in any order, unless you instruct it otherwise by saying how to sort the result. But a query doesn't come out in the order you want. ...
... • SQL SELECT command to fetch data from MySQL table. When you select rows, the MySQL server is free to return them in any order, unless you instruct it otherwise by saying how to sort the result. But a query doesn't come out in the order you want. ...
paper - VLDB Endowment
... techniques. Recently, [18] addresses this issue by allowing readonly clients to define freshness requirements stating how up-to-date data shall be accessed. However, the approach of [18] suffers from several important shortcomings. First, it relies on full replication at a granularity of complete da ...
... techniques. Recently, [18] addresses this issue by allowing readonly clients to define freshness requirements stating how up-to-date data shall be accessed. However, the approach of [18] suffers from several important shortcomings. First, it relies on full replication at a granularity of complete da ...
ACIDRain: Concurrency-Related Attacks on Database
... C1: Anomalies possible. Under concurrent API access, the application may exhibit behaviors (i.e., anomalies) that could not have arisen under a serial execution. A concurrency-related attack arises in the presence of behaviors that could not have occurred under a serial execution. These behaviors ar ...
... C1: Anomalies possible. Under concurrent API access, the application may exhibit behaviors (i.e., anomalies) that could not have arisen under a serial execution. A concurrency-related attack arises in the presence of behaviors that could not have occurred under a serial execution. These behaviors ar ...
Fundamentals of Database Systems
... – The sequence of cartesian product followed by select is used quite commonly to identify and select related tuples from two relations, a special operation, called JOIN. It is denoted by a – This operation is very important for any relational database with more than a single relation, because it all ...
... – The sequence of cartesian product followed by select is used quite commonly to identify and select related tuples from two relations, a special operation, called JOIN. It is denoted by a – This operation is very important for any relational database with more than a single relation, because it all ...
Materialized View
... When we configure a lookup transformation to It is a default cache. use a dynamic lookup cache, you can only use the equality operator in the lookup condition. NewLookupRow port will enable automatically. Best example where we need to use dynamic If we use static lookup first record it will go to ca ...
... When we configure a lookup transformation to It is a default cache. use a dynamic lookup cache, you can only use the equality operator in the lookup condition. NewLookupRow port will enable automatically. Best example where we need to use dynamic If we use static lookup first record it will go to ca ...
Parallel Databases - UCF Computer Science
... by considering these rows collectively as forming a plane along the third dimension. We apply the 2D GMDA algorithm p3 2 to this plane, except that the shifting distance is set to b N c . 2. We apply the 2D GMDA algorithmpto each of the 2-dimensional planes using the shifting distance b 3 N c and th ...
... by considering these rows collectively as forming a plane along the third dimension. We apply the 2D GMDA algorithm p3 2 to this plane, except that the shifting distance is set to b N c . 2. We apply the 2D GMDA algorithmpto each of the 2-dimensional planes using the shifting distance b 3 N c and th ...
NATIVE XML DATABASES vs. RELATIONAL DATABASES IN
... document (or its rooted part) as its fundamental unit of (logical) storage and defines a (logical) model for an XML document, as opposed to the data in that document (its contents). It represents logical XML document model (not XML document data model), and stores and manipulates documents according ...
... document (or its rooted part) as its fundamental unit of (logical) storage and defines a (logical) model for an XML document, as opposed to the data in that document (its contents). It represents logical XML document model (not XML document data model), and stores and manipulates documents according ...
Xml and Relational Databases
... XML documents can optionally have a DTD or XML schema, which defines the valid syntax of an XML document. ...
... XML documents can optionally have a DTD or XML schema, which defines the valid syntax of an XML document. ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth Edition
... Using a dbms to store the documents as text: We can use a relational or object dbms to store whole XML documents as text fields within the dbms records or objects. This aproach can be used if the dbms has a special module for document processing, and would work for storing schemaless and document-ce ...
... Using a dbms to store the documents as text: We can use a relational or object dbms to store whole XML documents as text fields within the dbms records or objects. This aproach can be used if the dbms has a special module for document processing, and would work for storing schemaless and document-ce ...
Relational Algebra - Philadelphia University
... – The sequence of cartesian product followed by select is used quite commonly to identify and select related tuples from two relations, a special operation, called JOIN. It is denoted by a – This operation is very important for any relational database with more than a single relation, because it all ...
... – The sequence of cartesian product followed by select is used quite commonly to identify and select related tuples from two relations, a special operation, called JOIN. It is denoted by a – This operation is very important for any relational database with more than a single relation, because it all ...
PS1
... • Slices are data partitions on separate servers • We use both! Additional slices can be added for scale-out For PS1, use SQL Server Distributed Partition Views (DPVs) slide 33 ...
... • Slices are data partitions on separate servers • We use both! Additional slices can be added for scale-out For PS1, use SQL Server Distributed Partition Views (DPVs) slide 33 ...
Database Architecture
... from Wingenious), is currently using a large custom software package that is based upon a database architecture very much like this one. This database architecture has served the business mentioned above very well since it was adopted there in 2001. As of late 2005, the company maintains roughly 30 ...
... from Wingenious), is currently using a large custom software package that is based upon a database architecture very much like this one. This database architecture has served the business mentioned above very well since it was adopted there in 2001. As of late 2005, the company maintains roughly 30 ...
Dialogue based Question Answering System in Telugu
... a semantic frame from the other system components. This frame is filled by interpreting the request in the context of the ongoing dialogue, domain knowledge, and dialogue history. The DM then prompts for missing information or sends a SQL query. Before the query is sent off, DM checks whether new in ...
... a semantic frame from the other system components. This frame is filled by interpreting the request in the context of the ongoing dialogue, domain knowledge, and dialogue history. The DM then prompts for missing information or sends a SQL query. Before the query is sent off, DM checks whether new in ...
Integrating Relational Data with Netezza`s TwinFin
... made to ensure the accuracy of these documents, HiT Software, Inc. assumes no responsibility for damages incurred directly or indirectly from errors, omissions, and discrepancies between the software and the documents. If you find any problems in the documentation, please report them to HiT Software ...
... made to ensure the accuracy of these documents, HiT Software, Inc. assumes no responsibility for damages incurred directly or indirectly from errors, omissions, and discrepancies between the software and the documents. If you find any problems in the documentation, please report them to HiT Software ...
No Slide Title
... You can create a collection of users in Windows called a group. Then you can assign permissions and roles either to individual users or to a group of users. The users, groups, and roles that have access to a server are called principals. The entities that can be secured on a server, including ...
... You can create a collection of users in Windows called a group. Then you can assign permissions and roles either to individual users or to a group of users. The users, groups, and roles that have access to a server are called principals. The entities that can be secured on a server, including ...
XML Publishing - Computer Science, NMSU
... Database administrator starts by writing an RXL query that defines the XML view of the database. It is called the view query. A materialized view is fed directly into the Plan Generator, which generates a set of SQL queries and one XML template. A virtual view is first composed by the Query Composer ...
... Database administrator starts by writing an RXL query that defines the XML view of the database. It is called the view query. A materialized view is fed directly into the Plan Generator, which generates a set of SQL queries and one XML template. A virtual view is first composed by the Query Composer ...
Distributed Databases - University of Texas at El Paso
... • 2 mirror-image databases maintained • All transactions stored/updated in both databases • Upon failure, the database is ‘switched’ for the mirror image • Generally stored across distributed databases • Fastest/most secure ...
... • 2 mirror-image databases maintained • All transactions stored/updated in both databases • Upon failure, the database is ‘switched’ for the mirror image • Generally stored across distributed databases • Fastest/most secure ...
Document
... Example: {customer-name, customer-street} and {customer-name} are both superkeys of Customer, if no two customers can possibly have the same name. In other words: any two tuples that are equal on K are equal (identical on all fields) K is a candidate key if K is minimal Example: {customer-name} ...
... Example: {customer-name, customer-street} and {customer-name} are both superkeys of Customer, if no two customers can possibly have the same name. In other words: any two tuples that are equal on K are equal (identical on all fields) K is a candidate key if K is minimal Example: {customer-name} ...
Private Database Queries Using Somewhat Homomorphic Encryption
... Enabling private database queries is an important research problem that arises in many real-world settings. The problem can be thought of as a generalization of symmetric private information retrieval (SPIR) [3, 11] where clients can retrieve records by specifying complex queries. For example, the c ...
... Enabling private database queries is an important research problem that arises in many real-world settings. The problem can be thought of as a generalization of symmetric private information retrieval (SPIR) [3, 11] where clients can retrieve records by specifying complex queries. For example, the c ...
Automated Question Answering Using Question Templates that
... 4 Retrieval of Relevant Data Instances Retrieval of data instances has three phases: query expansion, retrieval of candidate data instances, and examination of the candidate data instances. The simplest query expansion is stemming of words, which allows matching inflections of the words. The questio ...
... 4 Retrieval of Relevant Data Instances Retrieval of data instances has three phases: query expansion, retrieval of candidate data instances, and examination of the candidate data instances. The simplest query expansion is stemming of words, which allows matching inflections of the words. The questio ...
Python Database Application Programming Interface (DB-API)
... In Chapter 14, File Processing and Serialization, we discussed sequential-access and random-access file processing. Sequential-file processing is appropriate for applications in which most or all of the file’s information is to be processed. On the other hand, randomaccess file processing is appropr ...
... In Chapter 14, File Processing and Serialization, we discussed sequential-access and random-access file processing. Sequential-file processing is appropriate for applications in which most or all of the file’s information is to be processed. On the other hand, randomaccess file processing is appropr ...
ChemoCare User Guide - System Setup
... blood levels etc.). The interface receives these results and adds them to the relevant table within the ChemoCare database. ...
... blood levels etc.). The interface receives these results and adds them to the relevant table within the ChemoCare database. ...
High Volume Transaction Processing (HVTP) environment and
... less visible but often more damaging slowdowns in performance that have characterized many Web commerce systems at peak times. All system components must be optimized for volume. The ability to handle volume is determined not only by application design, but also by underlying databases, transaction ...
... less visible but often more damaging slowdowns in performance that have characterized many Web commerce systems at peak times. All system components must be optimized for volume. The ability to handle volume is determined not only by application design, but also by underlying databases, transaction ...
Versant Object Database
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.