Performance Tuning
... especially as systems become more standards compliant. • Commonly used performance measures: – Throughput (transactions per second, or tps) – Response time (delay from submission of transaction to return of result) – Availability or mean time to failure ...
... especially as systems become more standards compliant. • Commonly used performance measures: – Throughput (transactions per second, or tps) – Response time (delay from submission of transaction to return of result) – Availability or mean time to failure ...
Database Theory - Binus Repository
... keep their name, sex, birth date, and relationship to the employee. ...
... keep their name, sex, birth date, and relationship to the employee. ...
Expressive Query Construction through Direct Manipulation of
... be encoded in the schema of the query’s own result. This in turn allows the user interface to display the query and its result in a single visual representation, which can then be manipulated directly to modify any part of the query. Specifically, we allow queries to produce results from the nested ...
... be encoded in the schema of the query’s own result. This in turn allows the user interface to display the query and its result in a single visual representation, which can then be manipulated directly to modify any part of the query. Specifically, we allow queries to produce results from the nested ...
Expressive Query Construction through Direct Manipulation of
... be encoded in the schema of the query’s own result. This in turn allows the user interface to display the query and its result in a single visual representation, which can then be manipulated directly to modify any part of the query. Specifically, we allow queries to produce results from the nested ...
... be encoded in the schema of the query’s own result. This in turn allows the user interface to display the query and its result in a single visual representation, which can then be manipulated directly to modify any part of the query. Specifically, we allow queries to produce results from the nested ...
slides
... important for the choices made when planning query execution. • Time for operations grow (at least) linearly with size of (largest) argument. • The total size can even be used as a crude estimate on the running time. ...
... important for the choices made when planning query execution. • Time for operations grow (at least) linearly with size of (largest) argument. • The total size can even be used as a crude estimate on the running time. ...
Advanced Database Techniques 2010
... Mammals Flourished long before Dinosaurs became Extinct S. Manegold, P. Boncz, M. Kersten ...
... Mammals Flourished long before Dinosaurs became Extinct S. Manegold, P. Boncz, M. Kersten ...
chapter i - Sacramento - California State University
... Questions are raised. Is the way of data storage and retrieval on the traditional database systems the same as what has been done in the cloud environment? Additionally, can the concepts we use in the traditional databases be applied to the cloud databases? Are there any advantages when storing data ...
... Questions are raised. Is the way of data storage and retrieval on the traditional database systems the same as what has been done in the cloud environment? Additionally, can the concepts we use in the traditional databases be applied to the cloud databases? Are there any advantages when storing data ...
Dimension Build - dbmanagement.info
... 1. Click the ProductLine level of the Product hierarchy, and then click Add. 2. In the Name box, type ProductType and In the Source database box, click GO_Sales. 4. In the Source table box, click Browse for table, and then double-click the ProductType table. 5. Move each table column from the Availa ...
... 1. Click the ProductLine level of the Product hierarchy, and then click Add. 2. In the Name box, type ProductType and In the Source database box, click GO_Sales. 4. In the Source table box, click Browse for table, and then double-click the ProductType table. 5. Move each table column from the Availa ...
3. Relational Model and Relational Algebra
... • Categories of QLs: procedural versus declarative • Two (mathematical) query languages form the basis for “real” languages (e.g., SQL) and for implementation – Relational Algebra: procedural, very useful for representing query execution plans, and query optimization techniques. – Relational Calculu ...
... • Categories of QLs: procedural versus declarative • Two (mathematical) query languages form the basis for “real” languages (e.g., SQL) and for implementation – Relational Algebra: procedural, very useful for representing query execution plans, and query optimization techniques. – Relational Calculu ...
The Relational Data Model - Computer Science, Stony Brook
... What Is a Data Model? Data and Its Structure All data is recorded as bits and bytes on a disk, but it is difficult ...
... What Is a Data Model? Data and Its Structure All data is recorded as bits and bytes on a disk, but it is difficult ...
Outline Query Processing Steps Query Processing
... – Scan relation R and populate its hash table – Whenever the page buffer for a hash bucket is full, write it to disk and start a new page for that buffer – Finally, write the remaining page buffers to disk – Do the same for relation S (using the same hash function!) – Result: hash-partitioned versio ...
... – Scan relation R and populate its hash table – Whenever the page buffer for a hash bucket is full, write it to disk and start a new page for that buffer – Finally, write the remaining page buffers to disk – Do the same for relation S (using the same hash function!) – Result: hash-partitioned versio ...
normalization_pt1_west09
... http://www.snee.com/bobdc.blog/2005/12/25-years-of-database-history-s-1.html ...
... http://www.snee.com/bobdc.blog/2005/12/25-years-of-database-history-s-1.html ...
PPT - Courses - University of California, Berkeley
... referenced table (parent) if there are matching rows in the referencing table (child). • Three ways to handle this – Restrict -- disallow the delete – Nullify -- reset the foreign keys in the child to some NULL or dummy value – Cascade -- Delete all rows in the child where there is a foreign key mat ...
... referenced table (parent) if there are matching rows in the referencing table (child). • Three ways to handle this – Restrict -- disallow the delete – Nullify -- reset the foreign keys in the child to some NULL or dummy value – Cascade -- Delete all rows in the child where there is a foreign key mat ...
Chapter 21:Application Development and Administration
... introduces the theory of relational-database design. The theory of functional dependencies and normalization is covered, with emphasis on the motivation and intuitive understanding of each normal form. Instructors may chose to use only this initial coverage in Sections 7.1 through 7.3 without loss o ...
... introduces the theory of relational-database design. The theory of functional dependencies and normalization is covered, with emphasis on the motivation and intuitive understanding of each normal form. Instructors may chose to use only this initial coverage in Sections 7.1 through 7.3 without loss o ...
CODESOFT Tutorial
... OLE DB is a set of interfaces that gives access to all data, regardless of type, format or location. It provides components such as access interfaces, query drivers, and so on. These components are called "providers". The example below describes a connection process when a database is not connected ...
... OLE DB is a set of interfaces that gives access to all data, regardless of type, format or location. It provides components such as access interfaces, query drivers, and so on. These components are called "providers". The example below describes a connection process when a database is not connected ...
transaction - Ekalavya
... only a single statement • Automatic commit can usually be turned off, allowing multi-statement transactions, but how to do so depends on the database system Dr. Deepak B Phatak ...
... only a single statement • Automatic commit can usually be turned off, allowing multi-statement transactions, but how to do so depends on the database system Dr. Deepak B Phatak ...
Chapter 6
... test relations to see if they are legal under a given set of functional dependencies. If a relation r is legal under a set F of functional dependencies, we say that r satisfies F. specify constraints on the set of legal relations; we say that F holds on R if all legal relations on R satisfy the ...
... test relations to see if they are legal under a given set of functional dependencies. If a relation r is legal under a set F of functional dependencies, we say that r satisfies F. specify constraints on the set of legal relations; we say that F holds on R if all legal relations on R satisfy the ...
CODESOFT 2014 - Tutorial
... OLE DB is a set of interfaces that gives access to all data, regardless of type, format or location. It provides components such as access interfaces, query drivers, and so on. These components are called "providers". The example below describes a connection process when a database is not connected ...
... OLE DB is a set of interfaces that gives access to all data, regardless of type, format or location. It provides components such as access interfaces, query drivers, and so on. These components are called "providers". The example below describes a connection process when a database is not connected ...
Server performance with full disk encryption: The Dell
... To build the workload, we used DVD Store Version 2.1 (DS2), an open-source simulation of an online ecommerce DVD store. DS2 has database components and Web server components, and includes driver programs that place heavy loads on these components. A new feature of DVD Store Version 2.1 uses the abil ...
... To build the workload, we used DVD Store Version 2.1 (DS2), an open-source simulation of an online ecommerce DVD store. DS2 has database components and Web server components, and includes driver programs that place heavy loads on these components. A new feature of DVD Store Version 2.1 uses the abil ...
Document
... – Provides script name to re-run if necessary – DBUA calls this script to display status and then takes corrective action ...
... – Provides script name to re-run if necessary – DBUA calls this script to display status and then takes corrective action ...
Connecting to a database with JDBC
... ConnectMe1.java: register JDBC driver using the first method ConnectMe.java: register JDBC driver using the second method ...
... ConnectMe1.java: register JDBC driver using the first method ConnectMe.java: register JDBC driver using the second method ...