Chapter 1 Database Application
... 1. Data structure Data are organised in the form of rows and columns, i.e. tables, each representing an entity class. 2. Data manipulation SQL commands are used to manipulate data stored in the tables. 3. Data integrity Constraints are included to ensure that there is no loss of data integrity. ...
... 1. Data structure Data are organised in the form of rows and columns, i.e. tables, each representing an entity class. 2. Data manipulation SQL commands are used to manipulate data stored in the tables. 3. Data integrity Constraints are included to ensure that there is no loss of data integrity. ...
How to Build a Stream Database
... groups based on the tuple stream – GOPEN(t,G) : set of groups to create when tuple t arrives, and the set of groups is G. – GCLOSE(t,g): returns TRUE when if group g will not receive any further tuples, based on attributes of t. ...
... groups based on the tuple stream – GOPEN(t,G) : set of groups to create when tuple t arrives, and the set of groups is G. – GCLOSE(t,g): returns TRUE when if group g will not receive any further tuples, based on attributes of t. ...
IBM Tivoli Composite Application Manager for Microsoft® SQL
... COLL_DBCC_NO_LOCK:If some of the queries from database detail & device detail workspaces take more time to execute then in that case we can use this variable to fire query with option „WITH (NOLOCK)‟ so that query fired on the SQL server will not wait if object on which query fired is locked. ...
... COLL_DBCC_NO_LOCK:If some of the queries from database detail & device detail workspaces take more time to execute then in that case we can use this variable to fire query with option „WITH (NOLOCK)‟ so that query fired on the SQL server will not wait if object on which query fired is locked. ...
title
... – Keyword: P1 Performance (of the Primary Db) over data protect. It requires ASYNC redo transport, the LGWR process never waits for acknowledgment from the Standby database. ▶ Maximum Availability – Keyword: P1 = Availability: Zero data loss protect as a very close P2. It requires SYNC redo transpor ...
... – Keyword: P1 Performance (of the Primary Db) over data protect. It requires ASYNC redo transport, the LGWR process never waits for acknowledgment from the Standby database. ▶ Maximum Availability – Keyword: P1 = Availability: Zero data loss protect as a very close P2. It requires SYNC redo transpor ...
Introduction to SQL Azure - Johns Hopkins University
... Large Data Sets and/or Massive Throughput Partition data across many databases Use parallel fan-out queries to fetch the data Application code must be partition aware in v1 For v1 will publish best practices for scale out Post-v1 we are looking at building an abstraction to hide some of the complexi ...
... Large Data Sets and/or Massive Throughput Partition data across many databases Use parallel fan-out queries to fetch the data Application code must be partition aware in v1 For v1 will publish best practices for scale out Post-v1 we are looking at building an abstraction to hide some of the complexi ...
Best Implementation Practices for Discoverer
... application and functionality. When it says that there is no setup required for Discoverer….NOT really true…they are telling you that the application itself doesn’t have to be modified (it works straight out of the box) but access and security still has to be configured. EUL schema install, Oracle r ...
... application and functionality. When it says that there is no setup required for Discoverer….NOT really true…they are telling you that the application itself doesn’t have to be modified (it works straight out of the box) but access and security still has to be configured. EUL schema install, Oracle r ...
MYCH3
... IC: condition that must be true for any instance of the database; e.g., domain constraints. ...
... IC: condition that must be true for any instance of the database; e.g., domain constraints. ...
IC Database Configuration and Maintenance for SQL Server
... Formatting drives for maximum SQL Server performance Basic principles when considering the drives to use include: 1. When using traditional hard drives, get the highest RPM available, which is 15,000 RPM. 2. Do not get the largest drives available. It is much better to have many multiple smaller dri ...
... Formatting drives for maximum SQL Server performance Basic principles when considering the drives to use include: 1. When using traditional hard drives, get the highest RPM available, which is 15,000 RPM. 2. Do not get the largest drives available. It is much better to have many multiple smaller dri ...
Database Processing, 12e (Kroenke/Auer)
... purpose by storing data in tables. Each table has rows and columns, similar to a spreadsheet. A database usually has multiple tables in order to keep track of different but related things. For example, we might have a CUSTOMER table to keep track of customers and a PRODUCT table to keep track of the ...
... purpose by storing data in tables. Each table has rows and columns, similar to a spreadsheet. A database usually has multiple tables in order to keep track of different but related things. For example, we might have a CUSTOMER table to keep track of customers and a PRODUCT table to keep track of the ...
RQL: A SQL-like Query Language for Discovering
... analysts. Most of the time, they have to perform some data preprocessing between different systems and formats. The pattern mining codes themselves often require to be compiled from some specific programming languages. All these steps are out of reach of many data analysts, rending round-trip engine ...
... analysts. Most of the time, they have to perform some data preprocessing between different systems and formats. The pattern mining codes themselves often require to be compiled from some specific programming languages. All these steps are out of reach of many data analysts, rending round-trip engine ...
Microsoft MCSE 70-465 Exam - Free IT Certifications Dumps
... value must be reset to its initial value. You need to design a mechanism to hold the identifying values for the stored procedure to use. What should you do? More than one answer choice may achieve the goal. Select the BEST answer. A. Create a sequence object that holds the next value in the sequence ...
... value must be reset to its initial value. You need to design a mechanism to hold the identifying values for the stored procedure to use. What should you do? More than one answer choice may achieve the goal. Select the BEST answer. A. Create a sequence object that holds the next value in the sequence ...
Oracle NoSQL Database and Oracle Database: A Perfect
... Copyright © 2012, Oracle and/or its affiliates. All rights reserved. ...
... Copyright © 2012, Oracle and/or its affiliates. All rights reserved. ...
Key/Value Pair versus hstore - HSR-Wiki
... Listing 10: Transformed test data to KVP SQL statement ................................................................................ 12 Listing 11: Transformed test data to hstore SQL statement ........................................................................... 12 Listing 12: Explain Anal ...
... Listing 10: Transformed test data to KVP SQL statement ................................................................................ 12 Listing 11: Transformed test data to hstore SQL statement ........................................................................... 12 Listing 12: Explain Anal ...
Chapter 09 Presentation
... When there is a failure, either rollback or rollforward is applied – Rollback: undo the erroneous changes made to the database and reprocess valid transactions – Rollforward: restored database using saved data and valid transactions since the last save Copyright © 2004 Database Processing: Fundame ...
... When there is a failure, either rollback or rollforward is applied – Rollback: undo the erroneous changes made to the database and reprocess valid transactions – Rollforward: restored database using saved data and valid transactions since the last save Copyright © 2004 Database Processing: Fundame ...
Guide to Performance and Tuning: Space Management
... storage map or create index statement. The length used for the table or storage map is calculated from the sum of the column lengths, plus overhead for NULL bit vectors and row overhead. The AIP length for an index is derived from the node size clause used when creating a sorted or sorted ranked ind ...
... storage map or create index statement. The length used for the table or storage map is calculated from the sum of the column lengths, plus overhead for NULL bit vectors and row overhead. The AIP length for an index is derived from the node size clause used when creating a sorted or sorted ranked ind ...
Improving Database Performance
... which owns the particular resource Only one of the clustered systems can ‘own’ and access a particular resource at a time. When a failure occurs, resource ownership can be dynamically transferred to another system in the cluster Theoretically, a shared nothing multiprocessor could scale up to thousa ...
... which owns the particular resource Only one of the clustered systems can ‘own’ and access a particular resource at a time. When a failure occurs, resource ownership can be dynamically transferred to another system in the cluster Theoretically, a shared nothing multiprocessor could scale up to thousa ...
FME Readers and Writers 2013 SP1
... Native spatial indexing in GeoMedia is supported by both the reader and the writer. However some conditions apply. The reader will preserve spatial indexes read from a GeoMedia warehouse and a writer will automatically create new indexes (when creating new feature tables) based on the data, as long ...
... Native spatial indexing in GeoMedia is supported by both the reader and the writer. However some conditions apply. The reader will preserve spatial indexes read from a GeoMedia warehouse and a writer will automatically create new indexes (when creating new feature tables) based on the data, as long ...
Interactive Browsing and Navigation in Relational Databases
... model, studied in the 1980s, which allows each cell to contain another table that presents one-to-many relationships in a single table [40, 39]. The nested model has been used in several studies for designing database interfaces. Bakke et al. [7] recently designed a direct manipulation interface for ...
... model, studied in the 1980s, which allows each cell to contain another table that presents one-to-many relationships in a single table [40, 39]. The nested model has been used in several studies for designing database interfaces. Bakke et al. [7] recently designed a direct manipulation interface for ...
presentation source
... – While one processes is doing a disk read, another can be using the CPU or reading another disk. • DANGER DANGER! Concurrency could lead to incorrectness! – Must carefully manage concurrent data access. – There’s (much!) more here than the usual OS tricks! ...
... – While one processes is doing a disk read, another can be using the CPU or reading another disk. • DANGER DANGER! Concurrency could lead to incorrectness! – Must carefully manage concurrent data access. – There’s (much!) more here than the usual OS tricks! ...