de5.2.2
... application programs. It should also be pointed out that the data model is not intended to act as a general purpose model of protein crystallographic data. Another practical issue is that of moving from the abstract representation of the data model to a concrete implementation. This will involve not ...
... application programs. It should also be pointed out that the data model is not intended to act as a general purpose model of protein crystallographic data. Another practical issue is that of moving from the abstract representation of the data model to a concrete implementation. This will involve not ...
View PDF - CiteSeerX
... hiding in data distortion based technique. First is reducing the confidence of rules and second is reducing the support of rules. Verykios et al. [5] proposed five algorithms namely 1.a, 1.b, 2.a, 2.b, 2.c to hide sensitive knowledge of database by reducing support or confidence of sensitive rule. A ...
... hiding in data distortion based technique. First is reducing the confidence of rules and second is reducing the support of rules. Verykios et al. [5] proposed five algorithms namely 1.a, 1.b, 2.a, 2.b, 2.c to hide sensitive knowledge of database by reducing support or confidence of sensitive rule. A ...
Chapter 8 - Spatial Database Group
... accesses and CPU usage, a weight can be used to combine them into one measure. The weight is usually close to 0 because many CPU operations can be performed in the time to perform one physical record ...
... accesses and CPU usage, a weight can be used to combine them into one measure. The weight is usually close to 0 because many CPU operations can be performed in the time to perform one physical record ...
CS211 Lecture: Persistence; Introduction to Relational Databases
... in main memory (RAM) on some computer. This means, of course that those objects "live" only while the program is running, and cease to exist when the program is terminated, either via normal exit or as a result of a system crash, power failure, etc. 1. This is a consequence of the fact that the CPU ...
... in main memory (RAM) on some computer. This means, of course that those objects "live" only while the program is running, and cease to exist when the program is terminated, either via normal exit or as a result of a system crash, power failure, etc. 1. This is a consequence of the fact that the CPU ...
A Firm Foundation for Private Data Analysis
... consequences. Then every time subsampling occurs some individual suffers horribly. In input perturbation, either the data or the queries are modified before a response is generated. This broad category encompasses a generalization of subsampling, in which the curator first chooses, based on a secret ...
... consequences. Then every time subsampling occurs some individual suffers horribly. In input perturbation, either the data or the queries are modified before a response is generated. This broad category encompasses a generalization of subsampling, in which the curator first chooses, based on a secret ...
Document
... • Expect some operations need to be retried (e.g. due to transient faults, throttling, etc.) Avoid long-running queries / split operations into smaller chunks Make your operations easily restartable ...
... • Expect some operations need to be retried (e.g. due to transient faults, throttling, etc.) Avoid long-running queries / split operations into smaller chunks Make your operations easily restartable ...
Week 14 - California State University, Sacramento
... – Atomicity (entirety of action) – Consistency (from one consistent state to another) – Isolation (independent of other transactions) – Durability (permanence) ...
... – Atomicity (entirety of action) – Consistency (from one consistent state to another) – Isolation (independent of other transactions) – Durability (permanence) ...
Data Models
... The object data model was developed in the eighties in order to overcome some limitations of the relational model. It extends the paradigm of object-oriented programming to databases. In object databases, each entity of the real world is represented by an object. In contrast, a real world object is ...
... The object data model was developed in the eighties in order to overcome some limitations of the relational model. It extends the paradigm of object-oriented programming to databases. In object databases, each entity of the real world is represented by an object. In contrast, a real world object is ...
plastic - Database Systems Lab
... This parameter tells that the control file name is part.ctl. The default control file extension is .ctl, so the parameter needs to specify only the file name in this case. ...
... This parameter tells that the control file name is part.ctl. The default control file extension is .ctl, so the parameter needs to specify only the file name in this case. ...
lecture 6
... • To find out what indexes you have, use • select index_name from user_indexes; • USER_INDEXES is another system table just like USER_TABLES. • This can become especially helpful if you forget the names of your indexes and therefore cannot drop them. • You might also see weird names of the indexes ...
... • To find out what indexes you have, use • select index_name from user_indexes; • USER_INDEXES is another system table just like USER_TABLES. • This can become especially helpful if you forget the names of your indexes and therefore cannot drop them. • You might also see weird names of the indexes ...
Windows Server Configuraton - Western Washington University
... ConnectionString="Data Source=win-vuc09id4k05;Initial Catalog=customers;User ID=Webguest;Password=guest22" DeleteCommand="DELETE FROM [tblCustomers] WHERE [custID] = @custID" InsertCommand="INSERT INTO [tblCustomers] ([name]) VALUES (@name)" ProviderName="System.Data.SqlClient" SelectCommand="SELECT ...
... ConnectionString="Data Source=win-vuc09id4k05;Initial Catalog=customers;User ID=Webguest;Password=guest22" DeleteCommand="DELETE FROM [tblCustomers] WHERE [custID] = @custID" InsertCommand="INSERT INTO [tblCustomers] ([name]) VALUES (@name)" ProviderName="System.Data.SqlClient" SelectCommand="SELECT ...
CPS221 Lecture: Relational Database Creation and Design Objectives:
... constraint - that we won’t discuss in this course. C. REFERENTIAL INTEGRITY: A principle related to using lossless join decompositions to avoid redundancy is the explicit identification of FOREIGN KEYS. 1. In our lossless join decomposition, what made the decomposition work correctly is that the fir ...
... constraint - that we won’t discuss in this course. C. REFERENTIAL INTEGRITY: A principle related to using lossless join decompositions to avoid redundancy is the explicit identification of FOREIGN KEYS. 1. In our lossless join decomposition, what made the decomposition work correctly is that the fir ...
Query-by-Example (QBE)
... Attributes of relations are listed vertically, one below the other, instead of horizontally Instead of using variables, lines (links) between attributes are used to specify that their values should be the same. Links are added automatically on the basis of attribute name, ...
... Attributes of relations are listed vertically, one below the other, instead of horizontally Instead of using variables, lines (links) between attributes are used to specify that their values should be the same. Links are added automatically on the basis of attribute name, ...
Normalisation Example2
... – Write each key component on separate line, then write original (composite) key on last line – Each component will become key in new table ...
... – Write each key component on separate line, then write original (composite) key on last line – Each component will become key in new table ...
Data Warehouse Operational Architecture
... self-contained. That is, all the information needed to recreate the uncompressed data in a block is available within that block. The typical compression ratio for large data-warehouse tables ranges from 2:1 to 4:1. The data warehouse must use compression especially for fact partitioned tables and r ...
... self-contained. That is, all the information needed to recreate the uncompressed data in a block is available within that block. The typical compression ratio for large data-warehouse tables ranges from 2:1 to 4:1. The data warehouse must use compression especially for fact partitioned tables and r ...
Fast Vertical Mining Using Diffsets
... i.e., all valid association rules can be found. Note that maximal sets do not have this property, since subset counts are not available. Methods for mining closed sets include the Apriori-based A-Close method [15], the Closet algorithm based on FP-trees [16] and Charm [23]. Most of the previous work ...
... i.e., all valid association rules can be found. Note that maximal sets do not have this property, since subset counts are not available. Methods for mining closed sets include the Apriori-based A-Close method [15], the Closet algorithm based on FP-trees [16] and Charm [23]. Most of the previous work ...
First Semester - OrissaSpider.com
... Basic diagram for executing query operations, Using Heuristics in query optimization, Using selectivity and cost estimates in query optimization. Transaction processing concepts – Introduction to transaction processing, Transaction and system concepts, Desirable properties of transaction, Schedules ...
... Basic diagram for executing query operations, Using Heuristics in query optimization, Using selectivity and cost estimates in query optimization. Transaction processing concepts – Introduction to transaction processing, Transaction and system concepts, Desirable properties of transaction, Schedules ...
Deadlock Conditions
... o if no process is in critical section, can decide quickly who enters o only one process can enter the critical section so in practice, others are put on the queue 3. bounded waiting: there must exist a bound on the number of times that other processes are allowed to enter their critical sections af ...
... o if no process is in critical section, can decide quickly who enters o only one process can enter the critical section so in practice, others are put on the queue 3. bounded waiting: there must exist a bound on the number of times that other processes are allowed to enter their critical sections af ...
PowerPoint 97
... • An attribute value must match its type. • A primary key must be unique. • A tuple’s foreign key must be of the same type as its “matching” primary key. • To create a record with a given foreign key, a record in the corresponding table must have that value as its primary key. • Many to many relatio ...
... • An attribute value must match its type. • A primary key must be unique. • A tuple’s foreign key must be of the same type as its “matching” primary key. • To create a record with a given foreign key, a record in the corresponding table must have that value as its primary key. • Many to many relatio ...
Administration of Users
... Objectives (continued) • List the security risks of linked servers • List the security risks of remote servers • Describe best practices for user administration ...
... Objectives (continued) • List the security risks of linked servers • List the security risks of remote servers • Describe best practices for user administration ...
managing waste elimination database in lean manufacturing
... Database is a collection of related tables and other structures (Kroenke and Auer, 2011). Database arises from three sources; which the first database source is from the existing data from spreadsheets, data files and database extracts. Then, second database source is from new system development; wh ...
... Database is a collection of related tables and other structures (Kroenke and Auer, 2011). Database arises from three sources; which the first database source is from the existing data from spreadsheets, data files and database extracts. Then, second database source is from new system development; wh ...
Association Rule Mining: A Survey
... derive the multiple-level association rules under different supports in simple and effective way. Xunwei Zhou and Hong Bao [19] proposed an algorithm for double connective association rule mining for which a three table relational database is used. The rules are found among the primary keys of the t ...
... derive the multiple-level association rules under different supports in simple and effective way. Xunwei Zhou and Hong Bao [19] proposed an algorithm for double connective association rule mining for which a three table relational database is used. The rules are found among the primary keys of the t ...
Data Guard - Oracle Software Downloads
... Faster switchover and failover times Reduces planned and unplanned downtime Better Recovery Time Objective (RTO) for DR ...
... Faster switchover and failover times Reduces planned and unplanned downtime Better Recovery Time Objective (RTO) for DR ...
Data Management and Database Technologies - Indico
... to store additional redundant information on disk to optimize query response (indexed views, materialized views, etc.). In this case it is the DBMS software's responsibility to ensure that any redundant copies are kept consistent. ...
... to store additional redundant information on disk to optimize query response (indexed views, materialized views, etc.). In this case it is the DBMS software's responsibility to ensure that any redundant copies are kept consistent. ...