ppt - Avi Silberschatz
... Forms of authorization on parts of the database: Read authorization - allows reading, but not modification of data. Insert authorization - allows insertion of new data, but not ...
... Forms of authorization on parts of the database: Read authorization - allows reading, but not modification of data. Insert authorization - allows insertion of new data, but not ...
Slide 1
... Easy to Configure: No ODBC or database drivers need to be configured Use Baan Data Dictionary: Browse Baan tables and fields and create a query - using the Baan data dictionary ...
... Easy to Configure: No ODBC or database drivers need to be configured Use Baan Data Dictionary: Browse Baan tables and fields and create a query - using the Baan data dictionary ...
Linked data performance in different databases
... Relational Database Management Systems, or RDBMS, are the de facto standard of the industry. Most problems have been solved using a relational structure, without taking heed of what the data consists of and how it is used. Meepo AB wanted to develop a new rating and recommendation service, which wou ...
... Relational Database Management Systems, or RDBMS, are the de facto standard of the industry. Most problems have been solved using a relational structure, without taking heed of what the data consists of and how it is used. Meepo AB wanted to develop a new rating and recommendation service, which wou ...
I 257: Database Management - Courses
... University of California, Berkeley School of Information I 257: Database Management ...
... University of California, Berkeley School of Information I 257: Database Management ...
Introduction to DB
... Example: Two people reading a balance (say 100) and updating it by withdrawing money (say 50 each) at the same time ...
... Example: Two people reading a balance (say 100) and updating it by withdrawing money (say 50 each) at the same time ...
Overview of First4DB Monitoring
... Creates a standard file system interface on top of files and directories that are stored in database tables Similar to NFS in that it provides a shared network file system that looks like a local file system Files are stored as SecureFiles LOBs in a database table A set of PL/SQL procedures implemen ...
... Creates a standard file system interface on top of files and directories that are stored in database tables Similar to NFS in that it provides a shared network file system that looks like a local file system Files are stored as SecureFiles LOBs in a database table A set of PL/SQL procedures implemen ...
Ch23b_Views
... Maintenance policy: Controls when we do refresh. Immediate: As part of the transaction that modifies the underlying data tables. (+ Materialized view is always consistent; - updates are slowed) Deferred: Some time later, in a separate transaction. (- View becomes inconsistent; + can scale to mai ...
... Maintenance policy: Controls when we do refresh. Immediate: As part of the transaction that modifies the underlying data tables. (+ Materialized view is always consistent; - updates are slowed) Deferred: Some time later, in a separate transaction. (- View becomes inconsistent; + can scale to mai ...
Computing Consistent Query Answers using Conflict
... recall that a database schema S is a set of relation names with attribute names and types. An instance of a database is a function that assigns a finite set of tuples to each relation name. For the purposes of this paper we consider only two fixed database domains N (natural numbers) and D (uninterp ...
... recall that a database schema S is a set of relation names with attribute names and types. An instance of a database is a function that assigns a finite set of tuples to each relation name. For the purposes of this paper we consider only two fixed database domains N (natural numbers) and D (uninterp ...
Ch23b_Views
... Maintenance policy: Controls when we do refresh. Immediate: As part of the transaction that modifies the underlying data tables. (+ Materialized view is always consistent; - updates are slowed) Deferred: Some time later, in a separate transaction. (- View becomes inconsistent; + can scale to mai ...
... Maintenance policy: Controls when we do refresh. Immediate: As part of the transaction that modifies the underlying data tables. (+ Materialized view is always consistent; - updates are slowed) Deferred: Some time later, in a separate transaction. (- View becomes inconsistent; + can scale to mai ...
CH6_A
... Use CLEAR_FORM built-in procedure Create program unit to set value of text items to blank text string ...
... Use CLEAR_FORM built-in procedure Create program unit to set value of text items to blank text string ...
Course Name : Database Management Systems
... 9. Find pairs of sids such that the supplier with the first sid charges more for some part Than the supplier with the second sid. 10. Find the pids of parts that are supplied by at least two different suppliers. 11. Find the pids of the most expensive parts supplied by suppliers named Yosemite Sham. ...
... 9. Find pairs of sids such that the supplier with the first sid charges more for some part Than the supplier with the second sid. 10. Find the pids of parts that are supplied by at least two different suppliers. 11. Find the pids of the most expensive parts supplied by suppliers named Yosemite Sham. ...
Lecture 4
... Easy for limited capability scripting languages, harder for general purpose programming languages like Java ...
... Easy for limited capability scripting languages, harder for general purpose programming languages like Java ...
inconsistent databases
... which semantic constraints have to be imposed; or more generally, a database on which imposing new constrains depending on specific needs, e.g. user constraints, becomes necessary. In the area of data integration the satisfaction of desirable ICs by a database is much more difficult to achieve. One ...
... which semantic constraints have to be imposed; or more generally, a database on which imposing new constrains depending on specific needs, e.g. user constraints, becomes necessary. In the area of data integration the satisfaction of desirable ICs by a database is much more difficult to achieve. One ...
Event Notification Module - Schneider Electric is the Global
... Distributed installation requires two machines: the Database server and Application Server. The ENM database is installed on the Database Server and ENM components are installed on the Application Server. NOTE: For a distributed system, install the Database Server before the Application Server. ...
... Distributed installation requires two machines: the Database server and Application Server. The ENM database is installed on the Database Server and ENM components are installed on the Application Server. NOTE: For a distributed system, install the Database Server before the Application Server. ...
Java Database Connectivity with JDBC
... • DataBase Management System (DBMS) – Mechanisms for storing and organizing data – Access, store, modify data without concern for internal representation (information hiding) ...
... • DataBase Management System (DBMS) – Mechanisms for storing and organizing data – Access, store, modify data without concern for internal representation (information hiding) ...
6-Query_Intro
... ➡ Compilation optimize prior to the execution ➡ Difficult to estimate the size of the intermediate resultserror propagation ➡ Can amortize over many executions ➡ R* Dynamic ➡ Run time optimization ➡ Exact information on the intermediate relation sizes ➡ Have to reoptimize for multiple executions ...
... ➡ Compilation optimize prior to the execution ➡ Difficult to estimate the size of the intermediate resultserror propagation ➡ Can amortize over many executions ➡ R* Dynamic ➡ Run time optimization ➡ Exact information on the intermediate relation sizes ➡ Have to reoptimize for multiple executions ...
Improving Domino and DB2 Performance Document Version 1
... The Domino add-in task, nCompact -B, performs basic in-place DB2 reorganizations on all tables and indexes associated with the DB2 enabled Notes database that you specify. The reorganization operation is performed on the entire set of tables that can be shared by multiple Notes databases that are en ...
... The Domino add-in task, nCompact -B, performs basic in-place DB2 reorganizations on all tables and indexes associated with the DB2 enabled Notes database that you specify. The reorganization operation is performed on the entire set of tables that can be shared by multiple Notes databases that are en ...
A Modular Query Optimizer Architecture for Big Data - CMU 15-721
... Processing analytics queries on Hadoop is becoming increasingly popular. Initially, the queries were expressed as MapReduce jobs and the Hadoop’s appeal was attributed to its scalability and fault-tolerance. Coding, manually optimizing and maintaining complex queries in MapReduce though is hard, thu ...
... Processing analytics queries on Hadoop is becoming increasingly popular. Initially, the queries were expressed as MapReduce jobs and the Hadoop’s appeal was attributed to its scalability and fault-tolerance. Coding, manually optimizing and maintaining complex queries in MapReduce though is hard, thu ...
Microsoft SQL Server 2012 Reporting Services
... Send feedback or suggestions about this document to [email protected]. Please include the monitoring pack guide name with your feedback. The Operations Manager team encourages you to provide feedback on the monitoring pack by providing a review on the monitoring pack’s page in the Management Pac ...
... Send feedback or suggestions about this document to [email protected]. Please include the monitoring pack guide name with your feedback. The Operations Manager team encourages you to provide feedback on the monitoring pack by providing a review on the monitoring pack’s page in the Management Pac ...
11g Partitioning – New Features and Information Lifecycle
... The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The ...
... The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The ...
Gr8AmbitionZ.com
... count only distinct values than the DISTINCT keyword is also to be used) Q.33 Which one of the following statements is false? ...
... count only distinct values than the DISTINCT keyword is also to be used) Q.33 Which one of the following statements is false? ...