hoffer_mdm10e_pp_ch11
... retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Printed in the United States of America. ...
... retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Printed in the United States of America. ...
Chapter 14: Query Optimization
... If only left-deep trees are considered, time complexity of finding best join order is O(n 2n) Space complexity remains at O(2n) Cost-based optimization is expensive, but worthwhile for queries on large datasets (typical queries have small n, generally < 10) ...
... If only left-deep trees are considered, time complexity of finding best join order is O(n 2n) Space complexity remains at O(2n) Cost-based optimization is expensive, but worthwhile for queries on large datasets (typical queries have small n, generally < 10) ...
Chapter 14: Query Optimization
... If only left-deep trees are considered, time complexity of finding best join order is O(n 2n) Space complexity remains at O(2n) Cost-based optimization is expensive, but worthwhile for queries on large datasets (typical queries have small n, generally < 10) ...
... If only left-deep trees are considered, time complexity of finding best join order is O(n 2n) Space complexity remains at O(2n) Cost-based optimization is expensive, but worthwhile for queries on large datasets (typical queries have small n, generally < 10) ...
Database Architecture
... SQL Server has several options for decimal values. The main difference between the options is whether the decimal point is fixed or floating. Unless an application needs astronomically large or microscopically small values, there is no need for floating-point values (SQL Server data types float and ...
... SQL Server has several options for decimal values. The main difference between the options is whether the decimal point is fixed or floating. Unless an application needs astronomically large or microscopically small values, there is no need for floating-point values (SQL Server data types float and ...
Elmasri/Navathe, Fundamentals of Database
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
... Copyright © 2004 Ramez Elmasri and Shamkant Navathe ...
Chapter 21:Application Development and Administration
... Easy for limited capability scripting languages, harder for general purpose programming languages like Java ...
... Easy for limited capability scripting languages, harder for general purpose programming languages like Java ...
Connection Object - Pearson Education
... To connect to the database, you need a front-end application. In addition, you need to call the following functions in the code of the front-end application. 1. Call the SQLAllocEnv or SQLAllocHandle function to get an environment handle. 2. Call the SQLAllocConnect function. 3. Call the SQLConnect ...
... To connect to the database, you need a front-end application. In addition, you need to call the following functions in the code of the front-end application. 1. Call the SQLAllocEnv or SQLAllocHandle function to get an environment handle. 2. Call the SQLAllocConnect function. 3. Call the SQLConnect ...
Sliding-Window Filtering: An Efficient Algorithm for Incremental Mining
... Note that dbi,j is the part of the transaction database formed by a continuous region from partition Pi to partition Pj . Suppose we have conducted the mining for the transaction database dbi,j . As time advances, we are given the new data of January of 2001, and are interested in conducting an incr ...
... Note that dbi,j is the part of the transaction database formed by a continuous region from partition Pi to partition Pj . Suppose we have conducted the mining for the transaction database dbi,j . As time advances, we are given the new data of January of 2001, and are interested in conducting an incr ...
Oracle Database 11g: 5 Essential Steps to Upgrade
... Anderson developed a three-page template for her upgrade, with a list of all the people involved and their contact information, each step of the upgrade with commands and start and stop times, and a list of the backup steps in case the 11g upgrade runs into problems along the way. ...
... Anderson developed a three-page template for her upgrade, with a list of all the people involved and their contact information, each step of the upgrade with commands and start and stop times, and a list of the backup steps in case the 11g upgrade runs into problems along the way. ...
Database Reorganization
... except for differences in performance. levels are labeled at the left, while the three BERG80b also describes some types of levels of the A N S I SPARC database architecture (a proposed architectural framechanges. work for database systems) [Tsm77] are labeled at the right. Senko has pointed out 1.1 ...
... except for differences in performance. levels are labeled at the left, while the three BERG80b also describes some types of levels of the A N S I SPARC database architecture (a proposed architectural framechanges. work for database systems) [Tsm77] are labeled at the right. Senko has pointed out 1.1 ...
Introduction to Relational Databases and SQL
... Most DBMSs meet SQL89 standards, and many meet SQL92 standards. So to a large extent, SQL written for one DBMS will work in another DBMS with little or no changes. However, every DBMS vendor wants to differentiate its product on the market with more powerful features. In addition, the SQL standard d ...
... Most DBMSs meet SQL89 standards, and many meet SQL92 standards. So to a large extent, SQL written for one DBMS will work in another DBMS with little or no changes. However, every DBMS vendor wants to differentiate its product on the market with more powerful features. In addition, the SQL standard d ...
ExpertSeminar_AnalyticsPerformance(May 26 2010)
... Identify the reason for deferral/queuing: • One user chose inappropriate run-time filter values. Resolution: Edit the report and uncheck the ‘Set report to ...
... Identify the reason for deferral/queuing: • One user chose inappropriate run-time filter values. Resolution: Edit the report and uncheck the ‘Set report to ...
CHAPTER11
... • They are used in conjunction with archive files to recover ``lost’’ data. • Audit trails are typically built into better database technologies. ...
... • They are used in conjunction with archive files to recover ``lost’’ data. • Audit trails are typically built into better database technologies. ...
VDBMS - Cheriton School of Computer Science
... consists of a priority queue of objects encountered thus far, sorted by worst score in descending order. GetNext is binary (although this restriction is merely practical), and the algorithm holds for more than two inputs. Our modifications to the original NRA algorithm are the following: • The right ...
... consists of a priority queue of objects encountered thus far, sorted by worst score in descending order. GetNext is binary (although this restriction is merely practical), and the algorithm holds for more than two inputs. Our modifications to the original NRA algorithm are the following: • The right ...
Introduction to Database Systems
... What is the WAL property, and why is it important? The WAL property affects the logging strategy in a DBMS. The WAL, Write-Ahead Log, property states that each write action must be recorded in the log (on disk) before the corresponding change is reflected in the database itself. This protects the da ...
... What is the WAL property, and why is it important? The WAL property affects the logging strategy in a DBMS. The WAL, Write-Ahead Log, property states that each write action must be recorded in the log (on disk) before the corresponding change is reflected in the database itself. This protects the da ...
WINDOWS PRESENTATION FOUNDATION APPLICATION DEVELOPMENT FOR A MOVIE THEATER
... our design make it easy to use or not? And finally, the decision was made, and it was positive. Those three GUI are crucial for our cinema applications to work. Here, the Cashier window enables us to: (i) sell tickets, (ii) browse through possible shows, and (iii) give the basics of tickets manageme ...
... our design make it easy to use or not? And finally, the decision was made, and it was positive. Those three GUI are crucial for our cinema applications to work. Here, the Cashier window enables us to: (i) sell tickets, (ii) browse through possible shows, and (iii) give the basics of tickets manageme ...
Relational Model
... ICs are based upon the semantics of the realworld enterprise that is being described in the database relations. We can check a database instance to see if an IC is violated, but we can NEVER infer that an IC is true by looking at an instance. ...
... ICs are based upon the semantics of the realworld enterprise that is being described in the database relations. We can check a database instance to see if an IC is violated, but we can NEVER infer that an IC is true by looking at an instance. ...
Chapter 21:Application Development and Administration
... • While it can improve query performance, it uses up space, and creating and maintaining it consumes resources. • To help resolve this trade-off Oracle provides an advisor that can help a user create the most costeffective materialized views, given a particular query workload as input ...
... • While it can improve query performance, it uses up space, and creating and maintaining it consumes resources. • To help resolve this trade-off Oracle provides an advisor that can help a user create the most costeffective materialized views, given a particular query workload as input ...
Zacharewski Bioinformatics Group Large Object
... SQL datatype available in most databases, including Oracle). The general algorithm for inserting a new BLOB value follows: 1. Insert all other values into the table as per usual, but use the EMPTY_BLOB( ) for the BLOB field. 2. Select the newly entered field for update 3. Create an Oracle BLOB objec ...
... SQL datatype available in most databases, including Oracle). The general algorithm for inserting a new BLOB value follows: 1. Insert all other values into the table as per usual, but use the EMPTY_BLOB( ) for the BLOB field. 2. Select the newly entered field for update 3. Create an Oracle BLOB objec ...
Sequential Pattern Mining
... – Full periodicity: FFT, other statistical analysis methods – Partial and cyclic periodicity: Variations of Apriori-like mining methods ...
... – Full periodicity: FFT, other statistical analysis methods – Partial and cyclic periodicity: Variations of Apriori-like mining methods ...
Prototype for Traversing and Browsing Related Data in a Relation
... All of these activities involve a user-accessible tool which usually makes it possible to review the structure of a database – tables and their fields, as well as primary and foreign keys. SQL requests for the database can be executed, and the results of such requests become visible. With such tools ...
... All of these activities involve a user-accessible tool which usually makes it possible to review the structure of a database – tables and their fields, as well as primary and foreign keys. SQL requests for the database can be executed, and the results of such requests become visible. With such tools ...
Cloud Management Pack for Oracle Database: Feature Overview.
... Protects your existing investments Choice between hardware and software solution Use of trusted technologies like data guard for test master refresh ...
... Protects your existing investments Choice between hardware and software solution Use of trusted technologies like data guard for test master refresh ...