Self-Tuning Database Systems: A Decade of Progress
... The hardness result for selecting an optimal index configuration was shown by Shapiro [60]. Therefore, the challenge was similar to that in the area of query optimization – identifying the right set of heuristics to guide the selection of physical design. One set of papers advocated an approach base ...
... The hardness result for selecting an optimal index configuration was shown by Shapiro [60]. Therefore, the challenge was similar to that in the area of query optimization – identifying the right set of heuristics to guide the selection of physical design. One set of papers advocated an approach base ...
Database Management System 2
... • Scalability – Is the ability of a computer system to continue to function well as utilization of the system increases. • Three-tier architecture – Client perform presentation functions, Database Server performs database function, and separate computer (called Application servers) perform business ...
... • Scalability – Is the ability of a computer system to continue to function well as utilization of the system increases. • Three-tier architecture – Client perform presentation functions, Database Server performs database function, and separate computer (called Application servers) perform business ...
CCURE 9000 Enterprise
... for all SASs. This allows each SAS to allocate additional resources to perform important access control functions. ...
... for all SASs. This allows each SAS to allocate additional resources to perform important access control functions. ...
DAMA0107 Object Storage - DAMA-MN
... the need for efficient object storage – particularly in the middle tier ...
... the need for efficient object storage – particularly in the middle tier ...
Data Streams and Data Stream Management Systems
... where all the relevant data is kept and whose updates are relatively rare (almost true for traditional relational databases but not for data streams). This approach has a negative trend on performance if there are many rules to be processed (more than a given threshold) or when the data arrival rate ...
... where all the relevant data is kept and whose updates are relatively rare (almost true for traditional relational databases but not for data streams). This approach has a negative trend on performance if there are many rules to be processed (more than a given threshold) or when the data arrival rate ...
SECTION B
... MPD contracted with Yellow House Associates to build a customized Records Management System (RMS). The first of the RMS modules, Automated Field Reporting, was implemented in April 2009. Additional modules have been added since then, including an Interim Arrest & Booking module and the Investigative ...
... MPD contracted with Yellow House Associates to build a customized Records Management System (RMS). The first of the RMS modules, Automated Field Reporting, was implemented in April 2009. Additional modules have been added since then, including an Interim Arrest & Booking module and the Investigative ...
SQL Query Dissembler –A Self Optimizing Autonomic
... workload classes in a Database Management System. Our approach involved here divides a large query into an equivalent set of smaller queries and later schedules the execution of these queries. The goal of the work was to control the impact that the execution of large queries has on the performance o ...
... workload classes in a Database Management System. Our approach involved here divides a large query into an equivalent set of smaller queries and later schedules the execution of these queries. The goal of the work was to control the impact that the execution of large queries has on the performance o ...
SQL
... You can use most Transact-SQL commands in a stored procedure; however, some commands (such as CREATE PROCEDURE, CREATE VIEW, SET SHOWPLAN_TEXT, SET SHOWPLAN_ALL, and so forth) must be the first (or only) statement in a command batch, and therefore aren't allowed in stored procedures. ...
... You can use most Transact-SQL commands in a stored procedure; however, some commands (such as CREATE PROCEDURE, CREATE VIEW, SET SHOWPLAN_TEXT, SET SHOWPLAN_ALL, and so forth) must be the first (or only) statement in a command batch, and therefore aren't allowed in stored procedures. ...
DB2 and the SAS System - Information Delivery for the 1990s
... SAS/DB2 offers the end user who is willing to use a: software tool the ability to extract data directly from DB2. The interactive interface in SAS/DB2 is very easy to use and leads the user through the required panels. The desired interface can be saved as a map between DB2 and SAS and then reused. ...
... SAS/DB2 offers the end user who is willing to use a: software tool the ability to extract data directly from DB2. The interactive interface in SAS/DB2 is very easy to use and leads the user through the required panels. The desired interface can be saved as a map between DB2 and SAS and then reused. ...
SQL Server 2005 Security - Australian SQL Server User Group
... SQL Server Specialist [email protected] ...
... SQL Server Specialist [email protected] ...
CHAPTER 2
... to tackle the problems of heterogeneity among databases. A survey of, and comparison between, systems developed to handle this problem can be found in [1,2]. This chapter will focus on three commonly used and well-supported approaches: the physical approach, the global approach, and the multidatabas ...
... to tackle the problems of heterogeneity among databases. A survey of, and comparison between, systems developed to handle this problem can be found in [1,2]. This chapter will focus on three commonly used and well-supported approaches: the physical approach, the global approach, and the multidatabas ...
A Probabilistic Relational Algebra for the Integration of Information
... in the area of database systems to solve these problems. In addition, standalone IR systems have a very limited application range. Usually, retrieval is only one of several tasks which an information system has to perform. For example, in a lending library, a close integration of IR with the process ...
... in the area of database systems to solve these problems. In addition, standalone IR systems have a very limited application range. Usually, retrieval is only one of several tasks which an information system has to perform. For example, in a lending library, a close integration of IR with the process ...
6340-11-Recovery
... Two tables are required for implementing this protocol: Active table: All active transactions are entered in this table. Commit table: Transactions to be committed are entered in this table. During recovery, all transactions of the commit table are redone and all transactions of active tables are ig ...
... Two tables are required for implementing this protocol: Active table: All active transactions are entered in this table. Commit table: Transactions to be committed are entered in this table. During recovery, all transactions of the commit table are redone and all transactions of active tables are ig ...
SOLVED PAPERS OF ICS PART-2 (Computer Science) LAHORE
... database in a convenient and efficient manner. DBMS uses database manager software to control the overall structure of a database. 3. What is meant by access security? Access security refers to the protection of database from unauthorized access. It may include passwords and access restrictions. 4. ...
... database in a convenient and efficient manner. DBMS uses database manager software to control the overall structure of a database. 3. What is meant by access security? Access security refers to the protection of database from unauthorized access. It may include passwords and access restrictions. 4. ...
computing candidate keys of relational operators for optimizing
... Provenance rewrites and other aforementioned techniques generate queries with unusual access patterns and operator sequences. Even sophisticated database optimizers are not capable of producing reasonable plans for such queries. For example, after provenance rewriting, the generated query expression ...
... Provenance rewrites and other aforementioned techniques generate queries with unusual access patterns and operator sequences. Even sophisticated database optimizers are not capable of producing reasonable plans for such queries. For example, after provenance rewriting, the generated query expression ...
Using SAS/ACCESS Views to Retrieve DBMS Tables
... be considered a virtual data set. In order to use this virtual data set an Access Descriptor and a View Descriptor must be constructed. The goal of this paper is to: I. Inform the user of the construction of SAS views. II. Show how SAS views can be an efficient way of data management. ...
... be considered a virtual data set. In order to use this virtual data set an Access Descriptor and a View Descriptor must be constructed. The goal of this paper is to: I. Inform the user of the construction of SAS views. II. Show how SAS views can be an efficient way of data management. ...
National Snow and Ice Data Center
... entire data sets – not just the metadata Ability to store colossal amounts of small files Relational databases can't handle it. The tables grow too big. (Object-relational is no better) ...
... entire data sets – not just the metadata Ability to store colossal amounts of small files Relational databases can't handle it. The tables grow too big. (Object-relational is no better) ...
PGDGIS
... digitization, Error correction, Topology, Creating Topology, Topological database editing Topology. Conversion from Polyline to polygon, export and import to other formats. References 1. Uniform Drawing Format Manual: New CADD and Drafting Standards for Building Design and Working Drawings by Fred A ...
... digitization, Error correction, Topology, Creating Topology, Topological database editing Topology. Conversion from Polyline to polygon, export and import to other formats. References 1. Uniform Drawing Format Manual: New CADD and Drafting Standards for Building Design and Working Drawings by Fred A ...
Security Basics-20150923 – V1
... • Grant permissions to views, SPs etc. rather than the underlying tables. • Granting permissions at lowest level possible. (Don’t grant at a DB level if a Schema or even Object level will work) ...
... • Grant permissions to views, SPs etc. rather than the underlying tables. • Granting permissions at lowest level possible. (Don’t grant at a DB level if a Schema or even Object level will work) ...
ppt
... FO Queries and Domain Independence • Domain independent FO queries are also called safe queries • Definition. The active domain of (D, R1, ..., Rk) is Da = the set of all constants in R1, ..., Rk • E.g. for graphs, Da = {x | y.R(x, y) z.R(z, x)} ...
... FO Queries and Domain Independence • Domain independent FO queries are also called safe queries • Definition. The active domain of (D, R1, ..., Rk) is Da = the set of all constants in R1, ..., Rk • E.g. for graphs, Da = {x | y.R(x, y) z.R(z, x)} ...
AppSleuth - New York University
... Arjun Dasgupta, Vivek Narasayya, Manoj Syamala, A Static Analysis Framework for Database Applications, ICDE '09 Proceedings of the 2009 IEEE International Conference on Data Engineering, pp 1403-1414 Surajit Chaudhuri, Vivek Narasayya, and Manoj Syamala, Bridging the Application and DBMS Profiling D ...
... Arjun Dasgupta, Vivek Narasayya, Manoj Syamala, A Static Analysis Framework for Database Applications, ICDE '09 Proceedings of the 2009 IEEE International Conference on Data Engineering, pp 1403-1414 Surajit Chaudhuri, Vivek Narasayya, and Manoj Syamala, Bridging the Application and DBMS Profiling D ...
Semantic Technology Conference 2007 PPT
... in pursuit of new and fundamentally better solutions Problems “on the edge of doable” Integrator for DARPA Agent Markup Language (DAML) program Developer of various Semantic Web tools/apps Involvement in W3C Semantic Web Activity RDF Core WG SWRL OWL RIF WG ...
... in pursuit of new and fundamentally better solutions Problems “on the edge of doable” Integrator for DARPA Agent Markup Language (DAML) program Developer of various Semantic Web tools/apps Involvement in W3C Semantic Web Activity RDF Core WG SWRL OWL RIF WG ...
Distributed and Parallel Database Systems
... not visible to the users. This is called transparency. The distributed/parallel database technology extends the concept of data independence, which is a central notion of database management, to environments where data are distributed and replicated over a number of machines connected by a network. ...
... not visible to the users. This is called transparency. The distributed/parallel database technology extends the concept of data independence, which is a central notion of database management, to environments where data are distributed and replicated over a number of machines connected by a network. ...
Structured Query Language (SQL)
... • Structured Query Language – A widely used standard set of commands and syntax for doing things with RDBMSs – Used especially for query and retrieval – Includes commands for defining RDBs, conducting transactions, storing data, etc. – Implemented in all major RDBMSs – SQL does not handle all the pr ...
... • Structured Query Language – A widely used standard set of commands and syntax for doing things with RDBMSs – Used especially for query and retrieval – Includes commands for defining RDBs, conducting transactions, storing data, etc. – Implemented in all major RDBMSs – SQL does not handle all the pr ...
Type Inference Problem - University of Washington
... The Typechecking Problem in Theory and Practice • In practice, we care about typechecking • Question for theory: is this possible ? • Positive result [Milo, Suciu, Vianu, 2000]: – Decidable for k-pebble tree tansducers – Hence: decidable for: • Join-free XQuery • Simple XSLT programs ...
... The Typechecking Problem in Theory and Practice • In practice, we care about typechecking • Question for theory: is this possible ? • Positive result [Milo, Suciu, Vianu, 2000]: – Decidable for k-pebble tree tansducers – Hence: decidable for: • Join-free XQuery • Simple XSLT programs ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.