Top-k Selection Queries over Relational Databases: Mapping Strategies and Performance Evaluation
... These index structures and access methods are not currently supported by many traditional relational database management systems (RDBMS). Therefore, despite the conceptual simplicity of top-k queries and the expected performance payoff, these queries are not yet effectively supported by most RDBMSs. ...
... These index structures and access methods are not currently supported by many traditional relational database management systems (RDBMS). Therefore, despite the conceptual simplicity of top-k queries and the expected performance payoff, these queries are not yet effectively supported by most RDBMSs. ...
Spatial SQL: A Query and Presentation Language
... The window describing the area to be displayed can be described with SET WINDOW The window can be determined by ...
... The window describing the area to be displayed can be described with SET WINDOW The window can be determined by ...
Spring 2002 Transaction Information Systems
... starts browsing and querying the store's catalog • client fills electronic shopping cart • upon check-out client makes decision on items to purchase • client provides information for definitive order (including credit card or cyber cash info) • merchant's server forwards payment info to customer's b ...
... starts browsing and querying the store's catalog • client fills electronic shopping cart • upon check-out client makes decision on items to purchase • client provides information for definitive order (including credit card or cyber cash info) • merchant's server forwards payment info to customer's b ...
Using the ORACLE LIBNAME Engine to Reduce the Time it Takes to Extract Data From an ORACLE Database
... The code below uses the ORACLE LIBNAME engine to access ORACLE tables. Macro variables are used because SAS MPCONNECT is used extensively to access the same ORACLE database in multiple child jobs. Using macro variables allows us to enter the database names and passwords at one time. This reduces mos ...
... The code below uses the ORACLE LIBNAME engine to access ORACLE tables. Macro variables are used because SAS MPCONNECT is used extensively to access the same ORACLE database in multiple child jobs. Using macro variables allows us to enter the database names and passwords at one time. This reduces mos ...
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... participant of a relationship denotes an entity or an aggregated relationship. A relationship is called derived [12, 10] if it can be inferred from a combination (similar to a join) of other relationships and generalizations. Both paths (via the derived relationship and via the join of relationships ...
... participant of a relationship denotes an entity or an aggregated relationship. A relationship is called derived [12, 10] if it can be inferred from a combination (similar to a join) of other relationships and generalizations. Both paths (via the derived relationship and via the join of relationships ...
ID2212, Java Database Connectivity, Java Persistence API
... Fields may not be public and may not be accessed by other objects than the entity instance itself. ...
... Fields may not be public and may not be accessed by other objects than the entity instance itself. ...
Automating the Documentation of Oracle Clinical Database Specifications
... contains information about the database tables, the variables and their types and lengths, format codes, and derivation algorithms that are part of a study database. Clinical Data Management Systems (CDMS) such as Oracle Clinical are commonly used to support these study databases. These databases ar ...
... contains information about the database tables, the variables and their types and lengths, format codes, and derivation algorithms that are part of a study database. Clinical Data Management Systems (CDMS) such as Oracle Clinical are commonly used to support these study databases. These databases ar ...
ETL Evolution for Real-Time Data Warehousing
... based are the propagation of true data updates and not incremental loads. Extract: Taking out the data from a variety of disparate source systems correctly is often the most challenging aspect of ETL, as it sets the stage for how subsequent processes will go. In general, the goal of the extraction p ...
... based are the propagation of true data updates and not incremental loads. Extract: Taking out the data from a variety of disparate source systems correctly is often the most challenging aspect of ETL, as it sets the stage for how subsequent processes will go. In general, the goal of the extraction p ...
Collective Entity Resolution In Relational Data
... themselves. Friendships in social networks and collaborations between researchers are examples of such ties. In such cases, we stress the need for collective entity resolution where, instead of independently tagging pairs of records as duplicates or non-duplicates, related entities are resolved coll ...
... themselves. Friendships in social networks and collaborations between researchers are examples of such ties. In such cases, we stress the need for collective entity resolution where, instead of independently tagging pairs of records as duplicates or non-duplicates, related entities are resolved coll ...
SQL Server 2014 In-Memory OLTP TDM White Paper
... and 1TB of memory for under $50K. Since many, if not most, of the OLTP databases in production can fit entirely in 1TB, we need to re-evaluate the benefit of storing data on disk and incurring the I/O expense when the data needs to be read into memory to be processed. In addition, OLTP databases als ...
... and 1TB of memory for under $50K. Since many, if not most, of the OLTP databases in production can fit entirely in 1TB, we need to re-evaluate the benefit of storing data on disk and incurring the I/O expense when the data needs to be read into memory to be processed. In addition, OLTP databases als ...
Title Goes Here - Binus Repository
... • DB2 uses locking to maintain data integrity • Locks are acquired automatically as needed to support a transaction and are released when the transaction terminates (COMMIT/ROLLBACK) • Locks can be acquired on tables or rows • Two basic types of locks: – Share locks (S locks) – acquired when an appl ...
... • DB2 uses locking to maintain data integrity • Locks are acquired automatically as needed to support a transaction and are released when the transaction terminates (COMMIT/ROLLBACK) • Locks can be acquired on tables or rows • Two basic types of locks: – Share locks (S locks) – acquired when an appl ...
CH10
... inexpensive for other uses. Fast. By many accounts, MySQL is one of the fastest relational databases that’s currently available. Easy to use. Compared to other database systems, MySQL is easy to install and use. Portable. MySQL runs on most modern operating systems including Windows, Unix, Sol ...
... inexpensive for other uses. Fast. By many accounts, MySQL is one of the fastest relational databases that’s currently available. Easy to use. Compared to other database systems, MySQL is easy to install and use. Portable. MySQL runs on most modern operating systems including Windows, Unix, Sol ...
Using SAS/CONNECT and SAS/ACCESS Software to Access Data in a Distributed Environment
... VAXstation™ to record its inventory and sales data. The district warehouse for California is in los Angeles and uses DB2 on an MVS mainframe to control their inventory. The following figure shows the hardware and network configuration used by our application. ...
... VAXstation™ to record its inventory and sales data. The district warehouse for California is in los Angeles and uses DB2 on an MVS mainframe to control their inventory. The following figure shows the hardware and network configuration used by our application. ...
Chapter 1: Introduction - VLE
... Completely automating the process electronically will hopefully improve efficiency, by speeding up and improving the process organisation for entry and retrieval of data. Keeping to deadlines should be easier using electronic submission instead of pieces of paper. Data will not be lost as easily. I ...
... Completely automating the process electronically will hopefully improve efficiency, by speeding up and improving the process organisation for entry and retrieval of data. Keeping to deadlines should be easier using electronic submission instead of pieces of paper. Data will not be lost as easily. I ...
Lesson Plan Title: Simplifying the IF/IIf Function Goal of Lesson: To
... §130.114. Business Information Management I (One to Two Credits) (11) The student applies spreadsheet technology. The student is expected to: (A) perform mathematical processes, including: (v) prediction of patterns of data; and (B) formulate and produce solutions to a variety of business problems, ...
... §130.114. Business Information Management I (One to Two Credits) (11) The student applies spreadsheet technology. The student is expected to: (A) perform mathematical processes, including: (v) prediction of patterns of data; and (B) formulate and produce solutions to a variety of business problems, ...
SilkRoute : A Framework for Publishing Relational Data - CS
... documents (e.g., the “before” and “after” operators (<>) and the is/isnot operators), and features that enforce an order based on data values (e.g., the sort expression). An XQuery expression typically specifies the relative order of elements in the output document and this order is preserved. Th ...
... documents (e.g., the “before” and “after” operators (<>) and the is/isnot operators), and features that enforce an order based on data values (e.g., the sort expression). An XQuery expression typically specifies the relative order of elements in the output document and this order is preserved. Th ...
Chapter>>
... Ans: Local failures under the deferred update approach are handled without any restart work because no database changes occur until after a transaction commits; the transaction is aborted without any undo work. System failures require redo operations only. T4 and T5 transactions (not yet committed) ...
... Ans: Local failures under the deferred update approach are handled without any restart work because no database changes occur until after a transaction commits; the transaction is aborted without any undo work. System failures require redo operations only. T4 and T5 transactions (not yet committed) ...
Privacy-preserving Sanitization in Data Sharing
... In the era of big data, the prospect of analyzing, monitoring and investigating all sources of data starts to stand out in every aspect of our life. The benefit of such practices becomes concrete only when analysts or investigators have the information shared from data owners. However, privacy is on ...
... In the era of big data, the prospect of analyzing, monitoring and investigating all sources of data starts to stand out in every aspect of our life. The benefit of such practices becomes concrete only when analysts or investigators have the information shared from data owners. However, privacy is on ...
Working with DB2 UDB objects
... packaged separately from the DB2 server code and must be installed on the server and into each database that will use the data type. There are many DB2 Extenders available from IBM and from independent software vendors. The first four extenders provided by IBM were for storing audio, video, image, a ...
... packaged separately from the DB2 server code and must be installed on the server and into each database that will use the data type. There are many DB2 Extenders available from IBM and from independent software vendors. The first four extenders provided by IBM were for storing audio, video, image, a ...