ANU Metadata Stores
... component of the web services it serves information to clients. 2. Metadata Store Web Services The Metadata Store Web Services provide access for external clients to retrieve information from the Metadata Store. The web service provides the ability to perform some queries to find the data and serves ...
... component of the web services it serves information to clients. 2. Metadata Store Web Services The Metadata Store Web Services provide access for external clients to retrieve information from the Metadata Store. The web service provides the ability to perform some queries to find the data and serves ...
Overview of Storage and Indexing
... One approach: Consider the most important queries in turn. Consider the best plan using the current indexes, and see if a better plan is possible with an additional index. If so, create it. Obviously, this implies that we must understand how a DBMS evaluates queries and creates query evaluation pl ...
... One approach: Consider the most important queries in turn. Consider the best plan using the current indexes, and see if a better plan is possible with an additional index. If so, create it. Obviously, this implies that we must understand how a DBMS evaluates queries and creates query evaluation pl ...
An Efficient Method for Mining Association Rules with Item Constraints
... example, given a taxonomy that says that jackets is-a outerwear is-a clothes, we may infer a rule that “50% of people who buy outerwear tend to buy shoes. 5% of all transactions contain both ...
... example, given a taxonomy that says that jackets is-a outerwear is-a clothes, we may infer a rule that “50% of people who buy outerwear tend to buy shoes. 5% of all transactions contain both ...
Lessons learned from managing a large single instance database
... Accomplished with a combination of hIGHLY Available RAC Cluster (DB Tier), Cisco ACE for the Applications server farm (Application Tier), and Cisco fiber-channel switching (physical layer) An abrupt loss of the production site will not result in the loss of any committed transactions Accomplished th ...
... Accomplished with a combination of hIGHLY Available RAC Cluster (DB Tier), Cisco ACE for the Applications server farm (Application Tier), and Cisco fiber-channel switching (physical layer) An abrupt loss of the production site will not result in the loss of any committed transactions Accomplished th ...
database
... • A database designer might begin by listing available data, as well as any additional data that is necessary to produce on-screen output or printed reports • The next step is to organize that data into fields Chapter 10: Databases ...
... • A database designer might begin by listing available data, as well as any additional data that is necessary to produce on-screen output or printed reports • The next step is to organize that data into fields Chapter 10: Databases ...
lecture07
... Why Learn About Database Modeling? • The way in which data is stored is very important for subsequent access and manipulation by SQL. • Properties of a good data model: – It is easy to write correct and easy to understand queries. – Minor changes in the problem domain do not change the schema. – Ma ...
... Why Learn About Database Modeling? • The way in which data is stored is very important for subsequent access and manipulation by SQL. • Properties of a good data model: – It is easy to write correct and easy to understand queries. – Minor changes in the problem domain do not change the schema. – Ma ...
Techwave_2005_am18a_ASAInternals
... Test your application with different alternatives Your mileage may vary A 4K page size is a typical choice for many applications My recommendation: use 4K pages unless thorough testing proves that a different page size offers better ...
... Test your application with different alternatives Your mileage may vary A 4K page size is a typical choice for many applications My recommendation: use 4K pages unless thorough testing proves that a different page size offers better ...
Data Warehouse Pertemuan 2
... of queries to join tables to provide the required user information. The dimension tables provide a mechanism to view the data from different aspects simply by changing the dimensions used in the query. For example, one query may ask for all Customer Sales that occurred for Product 123. If this is a ...
... of queries to join tables to provide the required user information. The dimension tables provide a mechanism to view the data from different aspects simply by changing the dimensions used in the query. For example, one query may ask for all Customer Sales that occurred for Product 123. If this is a ...
Logical structure of a transaction
... A JSON data model and a simple query language on JSON data model RWSet to be the delta change in JSON records Include primary key in every RWSet Use additional Column families for indexing secondary fields ...
... A JSON data model and a simple query language on JSON data model RWSet to be the delta change in JSON records Include primary key in every RWSet Use additional Column families for indexing secondary fields ...
Conceptual Design Using the ER Model
... Whenever B-Students is used in a query, the view definition is first evaluated, before using B-Students in any other query operation. View concept provides logical data independence, as it can be used to mask the changes in the conceptual schema. Views can be defined taken security aspect into consi ...
... Whenever B-Students is used in a query, the view definition is first evaluated, before using B-Students in any other query operation. View concept provides logical data independence, as it can be used to mask the changes in the conceptual schema. Views can be defined taken security aspect into consi ...
Constraint-Based, Multidimensional Data Mining
... of $500) in the same category for Vancouver customers in 1998” is an association mining query. It is expressed in a data mining query language (DMQL1) as shown in Figure 1a. This mining query may allow the generation of association rules like those shown in Figure 1b. The rules mean that if a custom ...
... of $500) in the same category for Vancouver customers in 1998” is an association mining query. It is expressed in a data mining query language (DMQL1) as shown in Figure 1a. This mining query may allow the generation of association rules like those shown in Figure 1b. The rules mean that if a custom ...
object
... which are independent of each other E.g. temporary/permanent is independent of Officer/secretary/teller Create a subclass for each combination of subclasses – Need not create subclasses for combinations that are not possible in the database being modeled A class inherits variables and methods ...
... which are independent of each other E.g. temporary/permanent is independent of Officer/secretary/teller Create a subclass for each combination of subclasses – Need not create subclasses for combinations that are not possible in the database being modeled A class inherits variables and methods ...
employee management system
... The problem domain is the computerisation of an employee management system that can be accessed online by the administrator and the stakeholders such as the manager. THE CURRENT SYSTEM People have different personalities and work ethics .So in order to manage their work efficiently and fairly, there ...
... The problem domain is the computerisation of an employee management system that can be accessed online by the administrator and the stakeholders such as the manager. THE CURRENT SYSTEM People have different personalities and work ethics .So in order to manage their work efficiently and fairly, there ...
kjjhghgff
... Database Objects: The database file stores the database objects. Navigation Pane: Displays the objects contained in a database. When you doubleclick an object, it opens in the main part of the Access screen. ...
... Database Objects: The database file stores the database objects. Navigation Pane: Displays the objects contained in a database. When you doubleclick an object, it opens in the main part of the Access screen. ...
Document Scope - Database Security Systems
... logs will be lost in a single disk failure. Each control file shall be named controlnn.ctl where nn is a sequential number, starting with 01, to guarantee uniqueness. ...
... logs will be lost in a single disk failure. Each control file shall be named controlnn.ctl where nn is a sequential number, starting with 01, to guarantee uniqueness. ...
The Relational Data Model Data and Its Structure Physical Data
... This is a special case of referential integrity: A2 must be a candidate key of R2 (e.g., CrsCode is a key of Course in the above) If no row exists in R2 => violation of referential integrity Not all rows of R2 need to be referenced: relationship is not symmetric (e.g., some course might not be taugh ...
... This is a special case of referential integrity: A2 must be a candidate key of R2 (e.g., CrsCode is a key of Course in the above) If no row exists in R2 => violation of referential integrity Not all rows of R2 need to be referenced: relationship is not symmetric (e.g., some course might not be taugh ...
Updatable Views in Object-Oriented Database Systems
... fulfill nowadays requirements concerning efficient integrating heterogeneous data sources and services. ...
... fulfill nowadays requirements concerning efficient integrating heterogeneous data sources and services. ...
The Sublime Secrets of the SAS SQLheads
... WHERE conditions handle very large numbers of simple Boolean True or False expressions of one or two values (say, x>=1) The NOT, AND, and OR operators make it possible to qualify simple expressions. SQL has all of the tools needed to filter and subset. SAS SQL gives the database programmer a rich as ...
... WHERE conditions handle very large numbers of simple Boolean True or False expressions of one or two values (say, x>=1) The NOT, AND, and OR operators make it possible to qualify simple expressions. SQL has all of the tools needed to filter and subset. SAS SQL gives the database programmer a rich as ...
Review
... defined using Data Definition Language (DDL) Automatically enforced by the RDBMS Generally are defined at the time the tables are created. ...
... defined using Data Definition Language (DDL) Automatically enforced by the RDBMS Generally are defined at the time the tables are created. ...
Client Server Architecture
... When a client application reads a database record, the DBMS executes an I/O to read that record from the shared database. When the I/O completes, the DBMS retains a copy of the record in memory. If any other application requests the record it can be simply forwarded from memory and does not need to ...
... When a client application reads a database record, the DBMS executes an I/O to read that record from the shared database. When the I/O completes, the DBMS retains a copy of the record in memory. If any other application requests the record it can be simply forwarded from memory and does not need to ...
Introducing Visual Studio Team Edition for Database Professionals
... Incorporate the Database Professional into the software lifecycle and provide them with a foundation for change management and process integration. Change Management Project Based Development Project Model that represents schema as objects providing a “personal sandbox” for offline development that ...
... Incorporate the Database Professional into the software lifecycle and provide them with a foundation for change management and process integration. Change Management Project Based Development Project Model that represents schema as objects providing a “personal sandbox” for offline development that ...
Databases
... • There is hardly a person in America who is not in at least one computer database • When a database security breach occurs in a legitimate organization, its customers lose confidence and might take their business elsewhere Chapter 11: Databases ...
... • There is hardly a person in America who is not in at least one computer database • When a database security breach occurs in a legitimate organization, its customers lose confidence and might take their business elsewhere Chapter 11: Databases ...