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The Implementation and Performance Evaluation of the ADMS Query Optimizer: Integrating
... the cached query results with a structure called Logical Access Path Schema (LAPS) [Rou82a], and based on this, the CMO is able to perform the matching coincidently with the optimization, and generate an optimal plan using cached results. The integrated work is also enriched from the previous work t ...
... the cached query results with a structure called Logical Access Path Schema (LAPS) [Rou82a], and based on this, the CMO is able to perform the matching coincidently with the optimization, and generate an optimal plan using cached results. The integrated work is also enriched from the previous work t ...
Chapter 14: Query Optimization
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Module 13. Maintaining the Active Directory Database
... uses transaction log files to recover information regarding corrupted data. After recovering this information, Active Directory uses replication to recover data from other domain controllers in the domain. The interactions of Active Directory components provide the basis for how Active Directory bac ...
... uses transaction log files to recover information regarding corrupted data. After recovering this information, Active Directory uses replication to recover data from other domain controllers in the domain. The interactions of Active Directory components provide the basis for how Active Directory bac ...
chapter 1 - Sacramento - California State University
... MySQL is the most popular open source relational database management system based on SQL (Structured Query Language). Relational database management system is a program that lets you create, update, and administer a relational database. It stores data in separate tables rather than putting all data ...
... MySQL is the most popular open source relational database management system based on SQL (Structured Query Language). Relational database management system is a program that lets you create, update, and administer a relational database. It stores data in separate tables rather than putting all data ...
ECP2.1 Upgrade Client
... behavior of ECP across all the supported databases. Oracle and PostgreSQL use case sensitive search by default while MySQL and MSSQL are case insensitive. This can lead to some minor issues during message transportation when the message passes through databases with different case sensitivity. Takin ...
... behavior of ECP across all the supported databases. Oracle and PostgreSQL use case sensitive search by default while MySQL and MSSQL are case insensitive. This can lead to some minor issues during message transportation when the message passes through databases with different case sensitivity. Takin ...
EM408 - Backup and Recovery of ASA
... Using client-side backups -t : Only back up the transaction log -r : Rename and restart the current transaction log • The current transaction log (after being backed up) is renamed to a file based on the current date and a new empty current log file is created -x : Delete and restart the current tra ...
... Using client-side backups -t : Only back up the transaction log -r : Rename and restart the current transaction log • The current transaction log (after being backed up) is renamed to a file based on the current date and a new empty current log file is created -x : Delete and restart the current tra ...
ECP2.1 Upgrade Node Linux
... behavior of ECP across all the supported databases. Oracle and PostgreSQL use case sensitive search by default while MySQL and MSSQL are case insensitive. This can lead to some minor issues during message transportation when the message passes through databases with different case sensitivity. Takin ...
... behavior of ECP across all the supported databases. Oracle and PostgreSQL use case sensitive search by default while MySQL and MSSQL are case insensitive. This can lead to some minor issues during message transportation when the message passes through databases with different case sensitivity. Takin ...
Optimizing Your Query Plans with the SQL Server 2014
... Model Assumptions ...................................................................................................................................... 7 Enabling the New Cardinality Estimator ....................................................................................................... 8 ...
... Model Assumptions ...................................................................................................................................... 7 Enabling the New Cardinality Estimator ....................................................................................................... 8 ...
PHP and MySQL
... – DB performs the search (random access) vs. Sequential search - a line at a time in file ...
... – DB performs the search (random access) vs. Sequential search - a line at a time in file ...
EDU 213 Replication Server: Heterogeneous Replication
... • alter system • alter any procedure, create procedure • create public synonym, drop public synonym • create table • execute on DBMS_FLASHBACK • select on SYS.OBJ$ • select on SYS.LOB$ • select on SYS.COLLECTION$ • select on SYS.COL$ ...
... • alter system • alter any procedure, create procedure • create public synonym, drop public synonym • create table • execute on DBMS_FLASHBACK • select on SYS.OBJ$ • select on SYS.LOB$ • select on SYS.COLLECTION$ • select on SYS.COL$ ...
The design and implementation of an object-oriented
... Database designs in today's information-intensive environment, challenge the database-system user to adhere to strict and somewhat archaic means, i.e., traditional data models and their data languages, of expressing their database applications. In light of these requirements, the user must purchase ...
... Database designs in today's information-intensive environment, challenge the database-system user to adhere to strict and somewhat archaic means, i.e., traditional data models and their data languages, of expressing their database applications. In light of these requirements, the user must purchase ...
PHP MySQL Introduction
... Connecting To The Database • The first thing you must do before you can do any work at ...
... Connecting To The Database • The first thing you must do before you can do any work at ...
13. Query Optimization
... Database System Concepts, 6th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
... Database System Concepts, 6th Ed. ©Silberschatz, Korth and Sudarshan See www.db-book.com for conditions on re-use ...
Decision Support System Architecture, Hardware, and Operating
... computations and other processes of a DSS. These processes usually include supporting the usual elements of today’s easy to use graphical user interfaces, such as windows, pull-down menus, and the use of a mouse or other pointing device. This approach is referred to as client/server computing. The s ...
... computations and other processes of a DSS. These processes usually include supporting the usual elements of today’s easy to use graphical user interfaces, such as windows, pull-down menus, and the use of a mouse or other pointing device. This approach is referred to as client/server computing. The s ...
Decision Support System Architecture, Hardware, and Operating System Platforms
... computations and other processes of a DSS. These processes usually include supporting the usual elements of today’s easy to use graphical user interfaces, such as windows, pull-down menus, and the use of a mouse or other pointing device. This approach is referred to as client/server computing. The s ...
... computations and other processes of a DSS. These processes usually include supporting the usual elements of today’s easy to use graphical user interfaces, such as windows, pull-down menus, and the use of a mouse or other pointing device. This approach is referred to as client/server computing. The s ...
A Modular Query Optimizer Architecture for Big Data - CMU 15-721
... stand-alone optimizer. This ability is crucial to supporting products with different computing architectures (e.g., MPP and Hadoop) using one optimizer. It also allows leveraging the extensive legacy of relational optimization in new query processing paradigms like Hadoop [7, 10, 16, 17]. Furthermor ...
... stand-alone optimizer. This ability is crucial to supporting products with different computing architectures (e.g., MPP and Hadoop) using one optimizer. It also allows leveraging the extensive legacy of relational optimization in new query processing paradigms like Hadoop [7, 10, 16, 17]. Furthermor ...
Dimension Table
... The schema contains a central fact table for sales that contains keys to each of the four dimensions, along with two measures: dollars_sold and units_sold. Each dimension is represented by only one table Each table contains a set of attributes. In Fig, the “location” dimension table contains attribu ...
... The schema contains a central fact table for sales that contains keys to each of the four dimensions, along with two measures: dollars_sold and units_sold. Each dimension is represented by only one table Each table contains a set of attributes. In Fig, the “location” dimension table contains attribu ...
Using Management Data Warehouse for Performance
... MDW comes with three sets of data collection scripts. MDW has a simple API so you may add additional scripts to record additional information. MDW as the universal collector of performance and monitoring counters simplifies data analysis and save labor. MDW comes with hundreds of counters being coll ...
... MDW comes with three sets of data collection scripts. MDW has a simple API so you may add additional scripts to record additional information. MDW as the universal collector of performance and monitoring counters simplifies data analysis and save labor. MDW comes with hundreds of counters being coll ...
Referential Integrity Is Important For Databases
... foreign key and the referenced key both have database indexes—this is a good practice that we would advise anyway. The referenced columns can be a primary key or a unique combination of columns. • MS-Access. MS-Access only partially supports SQL commands for defining referential integrity, but its g ...
... foreign key and the referenced key both have database indexes—this is a good practice that we would advise anyway. The referenced columns can be a primary key or a unique combination of columns. • MS-Access. MS-Access only partially supports SQL commands for defining referential integrity, but its g ...
Querying Complex Structured Databases
... shown is shown in Figure 1. There are two kinds of relationship links. The first is structural links, which are drawn as solid arrows with parent element (e.g., region) pointing to child element (e.g., item). Structural links represent the parent/child relationships in XML, or table/column relations ...
... shown is shown in Figure 1. There are two kinds of relationship links. The first is structural links, which are drawn as solid arrows with parent element (e.g., region) pointing to child element (e.g., item). Structural links represent the parent/child relationships in XML, or table/column relations ...
Database Concepts
... What exactly is a Logical Model? • A Blueprint of your database. • It is DBMS independent, and does not rely on an specific product. • It is a technical communications tool. • Concepts from relational theory are reintroduced (PK, FK, Table, Column, data type) • Any person knowledgeable in SQL shou ...
... What exactly is a Logical Model? • A Blueprint of your database. • It is DBMS independent, and does not rely on an specific product. • It is a technical communications tool. • Concepts from relational theory are reintroduced (PK, FK, Table, Column, data type) • Any person knowledgeable in SQL shou ...
Chapter 14: Concurrency Control
... release its lock on B, while executing lock-X(A) causes T3 to wait for T4 to release its lock on A. Such a situation is called a deadlock. To handle a deadlock one of T3 or T4 must be rolled back and its locks must be released. ...
... release its lock on B, while executing lock-X(A) causes T3 to wait for T4 to release its lock on A. Such a situation is called a deadlock. To handle a deadlock one of T3 or T4 must be rolled back and its locks must be released. ...
Versant Object Database
![](https://commons.wikimedia.org/wiki/Special:FilePath/Versant_logo_2007.png?width=300)
Versant Object Database (VOD) is an object database software product developed by Versant Corporation.The Versant Object Database enables developers using object oriented languages to transactionally store their information by allowing the respective language to act as the Data Definition Language (DDL) for the database. In other words, the memory model is the database schema model.In general, persistence in VOD in implemented by declaring a list of classes, then providing a transaction demarcation application programming interface to use cases. Respective language integrations adhere to the constructs of that language, including syntactic and directive sugars.Additional APIs exist, beyond simple transaction demarcation, providing for the more advanced capabilities necessary to address practical issues found when dealing with performance optimization and scalability for systems with large amounts of data, many concurrent users, network latency, disk bottlenecks, etc.