第11 章
... memory and structures in physical storage • DBMS performance tuning at server end focuses on setting parameters used for: – Data cache: large enough – SQL cache: same query may be submitted by many users – Sort cache – Optimizer mode • Cost-based or Rule-based Database Systems, 8th Edition ...
... memory and structures in physical storage • DBMS performance tuning at server end focuses on setting parameters used for: – Data cache: large enough – SQL cache: same query may be submitted by many users – Sort cache – Optimizer mode • Cost-based or Rule-based Database Systems, 8th Edition ...
1 Introduction to DBMS
... Example: The database consists of information about a set of customers and accounts and the relationship between them Analogous to type information of a variable in a program Physical schema: database design at the physical level Logical schema: database design at the logical level Instance ...
... Example: The database consists of information about a set of customers and accounts and the relationship between them Analogous to type information of a variable in a program Physical schema: database design at the physical level Logical schema: database design at the logical level Instance ...
OBIEE 11g Analytics Using EMC Greenplum Database Users
... The OBIEE 11g Java Components are written in Java 2 Platform, Enterprise Edition (J2EE). They can be run directly in the J2EE Application Server (Oracle WebLogic). The WebLogic Server has both admin server and managed server(s) for all the 11g BI applications. Since OBIEE is physical data source ind ...
... The OBIEE 11g Java Components are written in Java 2 Platform, Enterprise Edition (J2EE). They can be run directly in the J2EE Application Server (Oracle WebLogic). The WebLogic Server has both admin server and managed server(s) for all the 11g BI applications. Since OBIEE is physical data source ind ...
SQL Server 7 Transaction Logs
... To avoid filling up your server’s disk drive, we recommend scheduling a weekly task that runs after the database back up which will dump the transaction log. You can use SQL Server’s scheduled tasks feature or NT Scheduler to do this. The following details the steps involved in setting up this task. ...
... To avoid filling up your server’s disk drive, we recommend scheduling a weekly task that runs after the database back up which will dump the transaction log. You can use SQL Server’s scheduled tasks feature or NT Scheduler to do this. The following details the steps involved in setting up this task. ...
IST 210 Organization of Data
... Which contains three components: protocol, web server name, and folder path to an HTML page ...
... Which contains three components: protocol, web server name, and folder path to an HTML page ...
A Review on Database Migration Strategies, Techniques and Tools
... integration (Christine Parent and Stefano Spaccapietra, 2000) between systems. This is achieved using a special type of software called gateways, which supports connectivity between DBMSs and do not involve the user in SQL and database schema. Hence, queries and operations are converted into SQL and ...
... integration (Christine Parent and Stefano Spaccapietra, 2000) between systems. This is achieved using a special type of software called gateways, which supports connectivity between DBMSs and do not involve the user in SQL and database schema. Hence, queries and operations are converted into SQL and ...
JDBC driver - renenergy2011.net
... Compile this class but before running it make sure that MySQL database server is running on your system. If not already running, you can start it by issueing a command like "mysqld-nt --console" or if you've installed it as a service then "net start mysql". Running this program gave following succes ...
... Compile this class but before running it make sure that MySQL database server is running on your system. If not already running, you can start it by issueing a command like "mysqld-nt --console" or if you've installed it as a service then "net start mysql". Running this program gave following succes ...
PowerPoint Template
... Provides: 1. Unified storage location of related recovery files. 2. Management of the disk space allocated. 3. Fast, reliable disk-based backup and restoration. ...
... Provides: 1. Unified storage location of related recovery files. 2. Management of the disk space allocated. 3. Fast, reliable disk-based backup and restoration. ...
Corporate PPT Template - Oracle Software Downloads
... Implement a complete, easy-to-use integration framework using Java and PL/SQL procedures. Use existing skills of our PL programmers. Shield our developers from the underlying complexity of our platform. Reuse business logic among different platforms. ...
... Implement a complete, easy-to-use integration framework using Java and PL/SQL procedures. Use existing skills of our PL programmers. Shield our developers from the underlying complexity of our platform. Reuse business logic among different platforms. ...
marked
... The recovery-management component of a database system implements the support for atomicity and durability. The shadow-database scheme: assume that only one transaction is active at a time. a pointer called db_pointer always points to the current consistent copy of the database. all update ...
... The recovery-management component of a database system implements the support for atomicity and durability. The shadow-database scheme: assume that only one transaction is active at a time. a pointer called db_pointer always points to the current consistent copy of the database. all update ...
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(Microsoft PowerPoint - lecture11 [Kompatibilitetsl\344ge])
... If two room booking transactions are run serializable, then a booking for a room that was listed as free will always succeed, and transactions must wait for other transactions to finish. In the min-max example, we always get a value that is correct at some point in time, either before or after the ...
... If two room booking transactions are run serializable, then a booking for a room that was listed as free will always succeed, and transactions must wait for other transactions to finish. In the min-max example, we always get a value that is correct at some point in time, either before or after the ...
database
... Database design is the process of converting a data model into tables, relationships, and data construction. Normalization is the process of converting poorly structured tables into tables that are well structured. © 2007 Prentice Hall, Inc. ...
... Database design is the process of converting a data model into tables, relationships, and data construction. Normalization is the process of converting poorly structured tables into tables that are well structured. © 2007 Prentice Hall, Inc. ...
dba120_01_audio
... repeating groups exist and it has a primary key • Second-normal form (2NF) is achieved if the record is in 1NF and has no partial dependencies • After a record is in 2NF and all transitive dependencies have been removed, then it is in third-normal form (3NF), which is generally sufficient for most d ...
... repeating groups exist and it has a primary key • Second-normal form (2NF) is achieved if the record is in 1NF and has no partial dependencies • After a record is in 2NF and all transitive dependencies have been removed, then it is in third-normal form (3NF), which is generally sufficient for most d ...
Lawson Add-Ins
... understanding of the form and application to which they are uploading data. Data must be entered correctly in the Upload Wizard to preserve the integrity of data in the database.” “The Upload Wizard cannot perform some Lawson transactions. For example, you cannot use the Upload feature to do a Relea ...
... understanding of the form and application to which they are uploading data. Data must be entered correctly in the Upload Wizard to preserve the integrity of data in the database.” “The Upload Wizard cannot perform some Lawson transactions. For example, you cannot use the Upload feature to do a Relea ...
transaction
... Database consists of objects (X, Y, Z), each of them is an integer Transactions are labeled T1, T2 etc. Each transaction has a set of local variables (not accessible by other transactions) in main memory. ...
... Database consists of objects (X, Y, Z), each of them is an integer Transactions are labeled T1, T2 etc. Each transaction has a set of local variables (not accessible by other transactions) in main memory. ...
Elmasri/Navathe, Fundamentals of Database Systems, Fourth
... Views in SQL A view is a “virtual” table that is derived from other tables Allows for limited update operations (since the table may not physically be stored) Allows full query operations A convenience for expressing certain operations (update some fields) Elmasri/Navathe, Fundamentals of Datab ...
... Views in SQL A view is a “virtual” table that is derived from other tables Allows for limited update operations (since the table may not physically be stored) Allows full query operations A convenience for expressing certain operations (update some fields) Elmasri/Navathe, Fundamentals of Datab ...
What happens too soon - AMIS Technology Blog
... Use accessmode=Range Paging if you have to display +- more than 250 records in an af:table, af:treeTable or af:tree Query resource intensive data only on demand (BLOBS, CLOBS, etc.) Limit the ViewObject query result rows by bind parameters where possible Use read-only ViewObjects where update is not ...
... Use accessmode=Range Paging if you have to display +- more than 250 records in an af:table, af:treeTable or af:tree Query resource intensive data only on demand (BLOBS, CLOBS, etc.) Limit the ViewObject query result rows by bind parameters where possible Use read-only ViewObjects where update is not ...
Proceedings of the Fourth International Natural Language
... language interpretation and of users attempting to pose questions that are beyond the capability of the system or, conversely, refraining from asking useful questions that are in fact within the system’s capability. However, one of the disadvantages of the WYSIWYM method is the fact that domain kno ...
... language interpretation and of users attempting to pose questions that are beyond the capability of the system or, conversely, refraining from asking useful questions that are in fact within the system’s capability. However, one of the disadvantages of the WYSIWYM method is the fact that domain kno ...
Chapter 1
... for every database vendor - Can also use a three-tier configuration - The application runs on the client side, the middle machine runs JDBC, and the third system runs the database system - JDBC and MySQL - Connecting the application to the driver - The getConnection method of DriverManager, which se ...
... for every database vendor - Can also use a three-tier configuration - The application runs on the client side, the middle machine runs JDBC, and the third system runs the database system - JDBC and MySQL - Connecting the application to the driver - The getConnection method of DriverManager, which se ...
slides - Indico
... Payload migration is the most complex problem in replacing Objectivity/DB – A variety of DDL classes; different designs; “composite” objects. – A total number of persistent classes to be migrated: ~200. – A total number of persistent objects to be converted ~3M. – Significant amount of transient cli ...
... Payload migration is the most complex problem in replacing Objectivity/DB – A variety of DDL classes; different designs; “composite” objects. – A total number of persistent classes to be migrated: ~200. – A total number of persistent objects to be converted ~3M. – Significant amount of transient cli ...
Slide 1
... • Distributed databases make it possible for a transaction to access data at several sites • Final COMMIT must not be issued until all sites have committed their parts of the transaction • Two-phase commit protocol requires each individual DP’s transaction log entry be written before the database fr ...
... • Distributed databases make it possible for a transaction to access data at several sites • Final COMMIT must not be issued until all sites have committed their parts of the transaction • Two-phase commit protocol requires each individual DP’s transaction log entry be written before the database fr ...
Indexing Spatial Data
... Spatial data is typically queried using a graphical query language; results are also displayed in a graphical manner. Graphical interface constitutes the front-end Extensions of SQL with abstract data types, such as lines, polygons and bit maps, have been proposed to interface with backend. allows r ...
... Spatial data is typically queried using a graphical query language; results are also displayed in a graphical manner. Graphical interface constitutes the front-end Extensions of SQL with abstract data types, such as lines, polygons and bit maps, have been proposed to interface with backend. allows r ...
Chapter 9
... Can be implemented using either primary keys or system generated tuple identifiers. ...
... Can be implemented using either primary keys or system generated tuple identifiers. ...
6340-11-Recovery
... Deferred Update with concurrent users Two tables are required for implementing this protocol: Active table: All active transactions are entered in this table. Commit table: Transactions to be committed are entered in this table. During recovery, all transactions of the commit table are redone and al ...
... Deferred Update with concurrent users Two tables are required for implementing this protocol: Active table: All active transactions are entered in this table. Commit table: Transactions to be committed are entered in this table. During recovery, all transactions of the commit table are redone and al ...