CS 245: Database System Principles
... • To execute “select A,B from R,S where condition”: (1) Read dictionary to get R,S attributes (2) Read R file, for each line: (a) Read S file, for each line: (i) Create join tuple (ii) Check condition (iii) Display if OK ...
... • To execute “select A,B from R,S where condition”: (1) Read dictionary to get R,S attributes (2) Read R file, for each line: (a) Read S file, for each line: (i) Create join tuple (ii) Check condition (iii) Display if OK ...
HP_TemIt_Guidelines
... Queries are designed to be realistic. They: − Answer real world questions − Cover system’s functionality relevant to decision support applications − Only allow tuning methods available to a DBA − Queries cover all data so that unrealistic creation of auxiliary data structures is unlikely − Yet, they ...
... Queries are designed to be realistic. They: − Answer real world questions − Cover system’s functionality relevant to decision support applications − Only allow tuning methods available to a DBA − Queries cover all data so that unrealistic creation of auxiliary data structures is unlikely − Yet, they ...
6232B Module 08
... web log entries beyond a given starting time. Previously, a non-clustered index was created on the SessionStart column. When 100 web log entries were being retrieved at a time, the index was being used. The developer is puzzled that changing the request to 5000 entries at a time has caused SQL Serve ...
... web log entries beyond a given starting time. Previously, a non-clustered index was created on the SessionStart column. When 100 web log entries were being retrieved at a time, the index was being used. The developer is puzzled that changing the request to 5000 entries at a time has caused SQL Serve ...
Comparison of Advance Tree Data Structures
... Many index structure have O(log(N)) complexity and in some application it is possible to achieve (O(1)). There are many different index structures use for this purpose. Main goal of indexing is to optimize the speed of query [20]. For any type of search or retrieval of information we ask a query and ...
... Many index structure have O(log(N)) complexity and in some application it is possible to achieve (O(1)). There are many different index structures use for this purpose. Main goal of indexing is to optimize the speed of query [20]. For any type of search or retrieval of information we ask a query and ...
www.hope.ac.uk Faculty of Sciences and Social Sciences HOPE
... Faculty of Sciences and Social Sciences http://hopelive.hope.ac.uk ...
... Faculty of Sciences and Social Sciences http://hopelive.hope.ac.uk ...
Querying the Internet with PIER Ryan Huebsch Joseph M. Hellerstein Nick Lanham
... need for organic scaling is where we intersect with the current enthusiasm for P2P systems. We do not specifically target the usual P2P environment of end-user PCs connected by modems, but we do believe that any widely distributed technology – even if it is intended to run on fairly robust gateway m ...
... need for organic scaling is where we intersect with the current enthusiasm for P2P systems. We do not specifically target the usual P2P environment of end-user PCs connected by modems, but we do believe that any widely distributed technology – even if it is intended to run on fairly robust gateway m ...
Abstract
... building robust and efficient intrusion detection systems. Our experimental results in Section 6 show that CRFs are very effective in improving the attack detection rate and decreasing the FAR. Having a low FAR is very important for any intrusion detection system. Further, feature selection and impl ...
... building robust and efficient intrusion detection systems. Our experimental results in Section 6 show that CRFs are very effective in improving the attack detection rate and decreasing the FAR. Having a low FAR is very important for any intrusion detection system. Further, feature selection and impl ...
ER Diagram for the movie database
... We have lots of customers. We rent videos only to people who have joined our 'video club.' To belong to our club, they must have good credit. For each club member, we’d like to keep their first and last name, current phone number, and current address. And, of course, each club member has a membershi ...
... We have lots of customers. We rent videos only to people who have joined our 'video club.' To belong to our club, they must have good credit. For each club member, we’d like to keep their first and last name, current phone number, and current address. And, of course, each club member has a membershi ...
Chapter>>
... Ans: The two actions are deleting a referenced row and updating the primary key of a referenced row. 19. What are the possible actions on related rows after a referenced row is deleted or its primary key is updated? Ans: The possible actions are: restrict (do not allow the operation on the reference ...
... Ans: The two actions are deleting a referenced row and updating the primary key of a referenced row. 19. What are the possible actions on related rows after a referenced row is deleted or its primary key is updated? Ans: The possible actions are: restrict (do not allow the operation on the reference ...
Using SAS Software to Analyze Sybase Performance on the Web
... increasing the speed of delivery on the web. Each view corresponds to a performance table, and a bulk copy utility (bcp) provided by Sybase SQL Server is used to parse the data stored in flat files and insert them into tables. Once the detailed performance data is stored in the database, a summary o ...
... increasing the speed of delivery on the web. Each view corresponds to a performance table, and a bulk copy utility (bcp) provided by Sybase SQL Server is used to parse the data stored in flat files and insert them into tables. Once the detailed performance data is stored in the database, a summary o ...
Comparing JSPs, ASPs and Servlets
... HTML form web page and send it to a server that parses the data on the form and generates a result. Recently, I had occasion to delve into Active Server Pages (ASPs) and I think it is really instructive to review the differences between these technologies. In this article, we’ll refer to the origina ...
... HTML form web page and send it to a server that parses the data on the form and generates a result. Recently, I had occasion to delve into Active Server Pages (ASPs) and I think it is really instructive to review the differences between these technologies. In this article, we’ll refer to the origina ...
Recommended Hardware Specifications
... SQL Server Reporting Services or Analysis Services components are not required to be installed. Advanced: For large databases, or systems where there is heavy disk access, the MDF and LDF files should be on separate physical drives. The MDF files should be in a RAID 1 or RAID10 array and the LDF fil ...
... SQL Server Reporting Services or Analysis Services components are not required to be installed. Advanced: For large databases, or systems where there is heavy disk access, the MDF and LDF files should be on separate physical drives. The MDF files should be in a RAID 1 or RAID10 array and the LDF fil ...
PipeView SDE
... and data structures for managing spatial features in RDBMS • Adds spatial data storage to normal RDBMS database tables • Backbone of the ESRI ArcGIS Architecture • SDE is an solution for delivering spatial data across the enterprise • Top twelve reasons for using SDE … • FAST! (needles in haystacks, ...
... and data structures for managing spatial features in RDBMS • Adds spatial data storage to normal RDBMS database tables • Backbone of the ESRI ArcGIS Architecture • SDE is an solution for delivering spatial data across the enterprise • Top twelve reasons for using SDE … • FAST! (needles in haystacks, ...
PLSQL Lecture 4
... Information for PL/SQL functions is stored in the following Oracle data dictionary views: – You can view source code in the USER_SOURCE table for subprograms that you own, or the ALL_SOURCE table for functions owned by others who have granted you the EXECUTE privilege. SELECT text FROM user_source W ...
... Information for PL/SQL functions is stored in the following Oracle data dictionary views: – You can view source code in the USER_SOURCE table for subprograms that you own, or the ALL_SOURCE table for functions owned by others who have granted you the EXECUTE privilege. SELECT text FROM user_source W ...
What Is JDBC?
... Use explicit data source declaration for physical reference to the database. Use the getConnection() method to obtain a logical connection instance. ...
... Use explicit data source declaration for physical reference to the database. Use the getConnection() method to obtain a logical connection instance. ...
An Enterprise Inference Engine Inside Oracle Database 11g
... • Option 2: Separation in TBox and ABox reasoning through PelletDb (interfacing Oracle Jena Adapter) – TBox (schema related) tends to be small in size • Generate a complete class subsumption tree using complete DL reasoners (like Pellet, KAON2, Fact++, Racer, etc) – ABox (instance related) can be ar ...
... • Option 2: Separation in TBox and ABox reasoning through PelletDb (interfacing Oracle Jena Adapter) – TBox (schema related) tends to be small in size • Generate a complete class subsumption tree using complete DL reasoners (like Pellet, KAON2, Fact++, Racer, etc) – ABox (instance related) can be ar ...
Automated Assessment of Secure Search Systems Mayank Varia Benjamin Price Nicholas Hwang
... We had three additional components that completed the framework design. First, our query generator created queries that were well-distributed among several variables of interest, such as the number of records returned. Second, our log parsers transformed test logs into comma-separated value files con ...
... We had three additional components that completed the framework design. First, our query generator created queries that were well-distributed among several variables of interest, such as the number of records returned. Second, our log parsers transformed test logs into comma-separated value files con ...
Automated Assessment of Secure Search Systems Mayank Varia Benjamin Price Nicholas Hwang
... We had three additional components that completed the framework design. First, our query generator created queries that were well-distributed among several variables of interest, such as the number of records returned. Second, our log parsers transformed test logs into comma-separated value files con ...
... We had three additional components that completed the framework design. First, our query generator created queries that were well-distributed among several variables of interest, such as the number of records returned. Second, our log parsers transformed test logs into comma-separated value files con ...
The History of Primavera Scheduling
... work in the past. P6™ has had so many growing pains and is only just now beginning to be documented by outside people. The problem with building such a history is that memory is not accurate enough; you need to build that history as it progresses. That is what we have attempted to do. We have been u ...
... work in the past. P6™ has had so many growing pains and is only just now beginning to be documented by outside people. The problem with building such a history is that memory is not accurate enough; you need to build that history as it progresses. That is what we have attempted to do. We have been u ...
Biomolecular databases Examples of biomolecular databases
... always use the same name to indicate the same object (this seems trivial, but its is unfortunately still not always the case) event better: define an ID for each objects, and allow to retrieve it by any of its synonyms spelling mistakes ...
... always use the same name to indicate the same object (this seems trivial, but its is unfortunately still not always the case) event better: define an ID for each objects, and allow to retrieve it by any of its synonyms spelling mistakes ...