Chapter 2 ppt
... the higher-level entity set must belong to at least one of the lower-level entity sets within a generalization. total : an entity must belong to one of the lower-level entity sets partial: an entity need not belong to one of the lower-level entity sets ...
... the higher-level entity set must belong to at least one of the lower-level entity sets within a generalization. total : an entity must belong to one of the lower-level entity sets partial: an entity need not belong to one of the lower-level entity sets ...
Using Databases – OpenOffice.org Base
... Introduction to Databases Imagine that you have a large collection of music records with more than 10,000 units. On top of that, albums are sometimes loaned to friends, leased out, or loaned to an archive. How would you go about organizing and managing this collection? Countless unorganized notes pr ...
... Introduction to Databases Imagine that you have a large collection of music records with more than 10,000 units. On top of that, albums are sometimes loaned to friends, leased out, or loaned to an archive. How would you go about organizing and managing this collection? Countless unorganized notes pr ...
PPT of Chapter 2 - North South University
... key of another relation. The attribute is called a foreign key. E.g. customer_name and account_number attributes of depositor are foreign keys to customer and account respectively. Only values occurring in the primary key attribute of the referenced relation may occur in the foreign key attribut ...
... key of another relation. The attribute is called a foreign key. E.g. customer_name and account_number attributes of depositor are foreign keys to customer and account respectively. Only values occurring in the primary key attribute of the referenced relation may occur in the foreign key attribut ...
Database Application Schema Forensics
... reflect the data actually stored in the database. For example, table structures may be corrupted by changing the metadata of a database, or operators of the database can be altered to produce incorrect results when used in queries. Such incorrect results may lead to a forensic examination to determi ...
... reflect the data actually stored in the database. For example, table structures may be corrupted by changing the metadata of a database, or operators of the database can be altered to produce incorrect results when used in queries. Such incorrect results may lead to a forensic examination to determi ...
Chapter 1: Introduction
... for each functional dependency f in F+ apply reflexivity and augmentation rules on f add the resulting functional dependencies to F + for each pair of functional dependencies f1and f2 in F + if f1 and f2 can be combined using transitivity then add the resulting functional dependency to F + until F + ...
... for each functional dependency f in F+ apply reflexivity and augmentation rules on f add the resulting functional dependencies to F + for each pair of functional dependencies f1and f2 in F + if f1 and f2 can be combined using transitivity then add the resulting functional dependency to F + until F + ...
Installation Guide BlackBerry Enterprise Service 12 Version 12.0
... During an upgrade from BES5 to BES12, if a user has more than one role assigned, BES12 combines the roles. BES12 resolves the roles so that the permissions remain as close as possible to the original permissions in BES5. If there are conflicting permissions that BES12 cannot resolve, the setup appli ...
... During an upgrade from BES5 to BES12, if a user has more than one role assigned, BES12 combines the roles. BES12 resolves the roles so that the permissions remain as close as possible to the original permissions in BES5. If there are conflicting permissions that BES12 cannot resolve, the setup appli ...
from instructor - CSE, IIT Bombay
... Let’s Try Writing Some Queries in SQL Some queries to be written….. Find the salary of the instructor with ID 10101 Find titles of all courses in the Comp. Sci. department Find course ID, year and semester of all courses taken by any ...
... Let’s Try Writing Some Queries in SQL Some queries to be written….. Find the salary of the instructor with ID 10101 Find titles of all courses in the Comp. Sci. department Find course ID, year and semester of all courses taken by any ...
CIM Database Model White Paper CIM Version 2.10 Abstract
... Management solution providers also benefit from the development of a common database model. The common model content provides a blueprint of database entities and properties that span vendor implementations. Solution providers can write management applications that have a consistent look-and-feel us ...
... Management solution providers also benefit from the development of a common database model. The common model content provides a blueprint of database entities and properties that span vendor implementations. Solution providers can write management applications that have a consistent look-and-feel us ...
ppt
... The SQL data-definition language (DDL) allows the specification of information about relations, including: The schema for each relation. The domain of values associated with each attribute. Integrity constraints And as we will see later, also other information such as ...
... The SQL data-definition language (DDL) allows the specification of information about relations, including: The schema for each relation. The domain of values associated with each attribute. Integrity constraints And as we will see later, also other information such as ...
The Measured Performance of Database
... are incorrect, the FAA has warned. The error occurred at Jeppesen after a software upgrade when information was pulled from a database containing 20,000 airspace boundaries worldwide for the March NavData update, which takes effect March 20. ...
... are incorrect, the FAA has warned. The error occurred at Jeppesen after a software upgrade when information was pulled from a database containing 20,000 airspace boundaries worldwide for the March NavData update, which takes effect March 20. ...
A Database-based Email System
... Contacts the LDAP server,verifies if recipient exists on this domain. The recipient could either be one/more users (or) a mailing-list. Parse and Fragment Mail Parse and fragment the mail to extract the header fields, body, attachments. All attachments are also seperated. Apply Filters Contact the ’ ...
... Contacts the LDAP server,verifies if recipient exists on this domain. The recipient could either be one/more users (or) a mailing-list. Parse and Fragment Mail Parse and fragment the mail to extract the header fields, body, attachments. All attachments are also seperated. Apply Filters Contact the ’ ...
DIS SW6000 Conference Management Software
... b. In the Search programs and files text box, type dcomcnfg.exe, and then click Enter. c. In the Component Services window, ...
... b. In the Search programs and files text box, type dcomcnfg.exe, and then click Enter. c. In the Component Services window, ...
2-3 Information on the OSPAR RID database development activities
... the harmonization of the national RID data. An overview of the 2008 database is given in section 3. However, there is a need to improve the database structure due to some shortcomings of the 2008 RID database. These shortcomings result from the fact that this first database was conceived as the firs ...
... the harmonization of the national RID data. An overview of the 2008 database is given in section 3. However, there is a need to improve the database structure due to some shortcomings of the 2008 RID database. These shortcomings result from the fact that this first database was conceived as the firs ...
Not For Sale
... © Cengage Learning. All rights reserved. No distribution allowed without express authorization. ...
... © Cengage Learning. All rights reserved. No distribution allowed without express authorization. ...
IBM i2 iBase 8 Quick Start Guide
... In the Find dialog, select the type of entity or link using the drop-down list at the top and then enter some search criteria into the boxes below. You do not have to enter all the data, perhaps the first few letters of a last name or the first few digits of an account number would be sufficient, th ...
... In the Find dialog, select the type of entity or link using the drop-down list at the top and then enter some search criteria into the boxes below. You do not have to enter all the data, perhaps the first few letters of a last name or the first few digits of an account number would be sufficient, th ...
The design and implementation of an object-oriented
... benefits of new data models and languages quickly. Our aim now is to show how we use this approach in the design and implementation of an object-oriented interface for the multimodel/multilingual database system. To further support our reason to design and implement an object-oriented interface vice ...
... benefits of new data models and languages quickly. Our aim now is to show how we use this approach in the design and implementation of an object-oriented interface for the multimodel/multilingual database system. To further support our reason to design and implement an object-oriented interface vice ...
Weak Entity Sets
... participate in relationships that do not apply to the higher-level entity set. Depicted by a triangle component labeled ISA (E.g. customer “is a” ...
... participate in relationships that do not apply to the higher-level entity set. Depicted by a triangle component labeled ISA (E.g. customer “is a” ...
Microsoft Access 2003: Module 2
... developed and organized based on the Instructional Design concepts, to ensure the effectiveness of the learning process. Most of the tasks in each chapter fit into a single page for easy reference. Most tasks are summarized to less than 10 key steps and accompanied by actual screen illustrations. Ev ...
... developed and organized based on the Instructional Design concepts, to ensure the effectiveness of the learning process. Most of the tasks in each chapter fit into a single page for easy reference. Most tasks are summarized to less than 10 key steps and accompanied by actual screen illustrations. Ev ...
RMAN Database Cloning Process
... 11. Copy and paste the duplicate command from the text editor into the RMAN session. If there are too many lines (datafiles), you can create a Unix shell script with the following format: #!/bin/ksh #rman_archivelog_backup.ksh . $HOME/.profile rman <
... 11. Copy and paste the duplicate command from the text editor into the RMAN session. If there are too many lines (datafiles), you can create a Unix shell script with the following format: #!/bin/ksh #rman_archivelog_backup.ksh . $HOME/.profile rman <
A,r
... Statistical Information for Cost Estimation nr: number of tuples in a relation r. (tuple/relation) br: number of blocks containing tuples of r. (block/relation) lr: size of a tuple of r. (byte/tuple) fr: blocking factor of r — i.e., the number of tuples of r ...
... Statistical Information for Cost Estimation nr: number of tuples in a relation r. (tuple/relation) br: number of blocks containing tuples of r. (block/relation) lr: size of a tuple of r. (byte/tuple) fr: blocking factor of r — i.e., the number of tuples of r ...
What is Marklogic?
... The default forest directory is the same as the default data directory if the optional data directory is not specified during forest creation. On UNIX platforms, if you want Marklogic Server to use another location for its default data directory, make your data directory (/var/opt/Marklogic on Linux ...
... The default forest directory is the same as the default data directory if the optional data directory is not specified during forest creation. On UNIX platforms, if you want Marklogic Server to use another location for its default data directory, make your data directory (/var/opt/Marklogic on Linux ...
Slides
... [1] B. Glavic, R. J. Miller, and G. Alonso. Using SQL for Efficient Generation and Querying of Provenance Information. In In Search of Elegance in the Theory and Practice of Computation, pages 291–320. Springer, 2013.. [2] YB. Arab, D. Gawlick, V. Radhakrishnan, H. Guo, and B. Glavic. A generic prov ...
... [1] B. Glavic, R. J. Miller, and G. Alonso. Using SQL for Efficient Generation and Querying of Provenance Information. In In Search of Elegance in the Theory and Practice of Computation, pages 291–320. Springer, 2013.. [2] YB. Arab, D. Gawlick, V. Radhakrishnan, H. Guo, and B. Glavic. A generic prov ...
An Online Travel Agency Using PHP
... session_start(); session_register("sess_tripID"); session_register("sess_tripName"); session_register("sess_tripDate"); session_register("sess_tripCost"); session_register("sess_totalPeople"); if(!isset($sess_totalPeople)) $sess_totalPeople = 0; $sess_tripID = $_GET["trip"]; ...
... session_start(); session_register("sess_tripID"); session_register("sess_tripName"); session_register("sess_tripDate"); session_register("sess_tripCost"); session_register("sess_totalPeople"); if(!isset($sess_totalPeople)) $sess_totalPeople = 0; $sess_tripID = $_GET["trip"]; ...
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... need of further research. In the basic relational model nulls are excluded from every component of a primary key of a base relation. Apart from this constraint, any occurrence of the value-unknown type of null can be replaced in an updating operation by a nonnull value, and vice versa, unless there ...
... need of further research. In the basic relational model nulls are excluded from every component of a primary key of a base relation. Apart from this constraint, any occurrence of the value-unknown type of null can be replaced in an updating operation by a nonnull value, and vice versa, unless there ...