Slide 1
... – Related information systems • A DBMS can support several related information systems that provide input to, and require specific data from, the DBMS • No human intervention is required for two-way ...
... – Related information systems • A DBMS can support several related information systems that provide input to, and require specific data from, the DBMS • No human intervention is required for two-way ...
Information Retrieval
... • Improve inferring query context – (query expansion, relevance feedback) ...
... • Improve inferring query context – (query expansion, relevance feedback) ...
Slides
... terminating a text string and appending a new command Because the inserted command may have additional strings appended to it before it is executed the attacker terminates the injected string with a comment mark “- -” ...
... terminating a text string and appending a new command Because the inserted command may have additional strings appended to it before it is executed the attacker terminates the injected string with a comment mark “- -” ...
![syllabus[1]. - ElCoM](http://s1.studyres.com/store/data/003440566_1-d3723e4a6aeb1784970cf983e6eb9d59-300x300.png)
syllabus[1]. - ElCoM
... Thomas Connolly et. al., “Database Systems, A Practical Approach to Design, Implementation and Management”, Addison Wesley, ...
... Thomas Connolly et. al., “Database Systems, A Practical Approach to Design, Implementation and Management”, Addison Wesley, ...
1 File Processing Systems
... • consistency - once a transaction completes successfully, the database must be in a consistent state. The database may be in an inconsistent state while a transaction is executing. For example, during a transaction that transfers money from account A to account B, the total funds held by the bank m ...
... • consistency - once a transaction completes successfully, the database must be in a consistent state. The database may be in an inconsistent state while a transaction is executing. For example, during a transaction that transfers money from account A to account B, the total funds held by the bank m ...
Database
... 1. Fragmented Distributed Databases • Data are localized; data are stored on local site • Data can be accessed from different sites as well as the local site • Although each site has complete control over its local data, there is global control through the internet ...
... 1. Fragmented Distributed Databases • Data are localized; data are stored on local site • Data can be accessed from different sites as well as the local site • Although each site has complete control over its local data, there is global control through the internet ...
SQL views
... SQL view is a virtual table that is constructed from other tables or views It has no data of its own, but obtains data from tables or other views It only has a definition SELECT statements are used to define views A view definition may not include an ORDER BY clause ...
... SQL view is a virtual table that is constructed from other tables or views It has no data of its own, but obtains data from tables or other views It only has a definition SELECT statements are used to define views A view definition may not include an ORDER BY clause ...
DBMS, ITS FEATURES AND COMPONETNS - MUET-CRP
... programming languages (such as Visual Basic, Java, or C++) to interact with databases are called Application Programmer. Database Administrators: A person who is responsible for managing the overall database management system is called database administrator or simply ...
... programming languages (such as Visual Basic, Java, or C++) to interact with databases are called Application Programmer. Database Administrators: A person who is responsible for managing the overall database management system is called database administrator or simply ...
Structured Query Language
... Information about tables in the database is kept in the system catalog or the data dictionary The system catalog is a relational database Information can be retrieved by using the same types of queries which are used to retrieve data in a relational database The DBMS updates the system catalog autom ...
... Information about tables in the database is kept in the system catalog or the data dictionary The system catalog is a relational database Information can be retrieved by using the same types of queries which are used to retrieve data in a relational database The DBMS updates the system catalog autom ...
Database
... 1. Fragmented Distributed Databases • Data are localized; data are stored on local site • Data can be accessed from different sites as well as the local site • Although each site has complete control over its local data, there is global control through the internet ...
... 1. Fragmented Distributed Databases • Data are localized; data are stored on local site • Data can be accessed from different sites as well as the local site • Although each site has complete control over its local data, there is global control through the internet ...
Data Models
... built on top of file systems Drawbacks of using file systems to store data: Data redundancy and inconsistency: Multiple file formats, duplication of information in different files Difficulty in accessing data: Need to write a new program to carry out each new task Data isolation: Multiple file ...
... built on top of file systems Drawbacks of using file systems to store data: Data redundancy and inconsistency: Multiple file formats, duplication of information in different files Difficulty in accessing data: Need to write a new program to carry out each new task Data isolation: Multiple file ...
Ch05
... with data in ways that may not have been possible before. End users have a consolidated view of organizational data. ...
... with data in ways that may not have been possible before. End users have a consolidated view of organizational data. ...
Physical Database Design
... many-to-many relationship of any degree — unary, binary, or ternary — the number of tables will be equal to the number of entity types (one, two, or three, respectively) plus one more table for the many-to-many relationship. ...
... many-to-many relationship of any degree — unary, binary, or ternary — the number of tables will be equal to the number of entity types (one, two, or three, respectively) plus one more table for the many-to-many relationship. ...
Java SQL (JDBC) session
... Java SQL (JDBC) session In this hands-on session, you will create a connection between Java and MySQL Server. Later, you will need to define several SQL queries to create a database, a few tables and insert corresponding data into them. Exercise instructions: 1. Create a class SQLdatabase in Eclipse ...
... Java SQL (JDBC) session In this hands-on session, you will create a connection between Java and MySQL Server. Later, you will need to define several SQL queries to create a database, a few tables and insert corresponding data into them. Exercise instructions: 1. Create a class SQLdatabase in Eclipse ...
Server and Cloud Platform template
... Offer business continuity and disaster recovery with high availability and manageability ...
... Offer business continuity and disaster recovery with high availability and manageability ...
Introduction to Database Concepts
... Constructing a Database • Is the process of storing the data itself on some storage device • The storage device is controlled by a DBMS ...
... Constructing a Database • Is the process of storing the data itself on some storage device • The storage device is controlled by a DBMS ...
Distributed Databases
... 1. Fault tolerance: Recognizes that faults will occur, and designs mechanisms that can detect and remove faults before they can result in a system failure. 2. To ensure that the final system does not contain any faults. This is done through an exhaustive design process followed by extensive quality ...
... 1. Fault tolerance: Recognizes that faults will occur, and designs mechanisms that can detect and remove faults before they can result in a system failure. 2. To ensure that the final system does not contain any faults. This is done through an exhaustive design process followed by extensive quality ...
Topics in Database Administration
... Transactions have properties (ACID) • Atomicity: A transaction is an indivisible unit of work. – Almost all languages that interface with a DBMS have a way to signify the start and end of a transaction. – Within the start and end are one or more SQL commands. ...
... Transactions have properties (ACID) • Atomicity: A transaction is an indivisible unit of work. – Almost all languages that interface with a DBMS have a way to signify the start and end of a transaction. – Within the start and end are one or more SQL commands. ...
Aplikasi Pangkalan Data
... Separate the external aspects of an object from its internal details. ...
... Separate the external aspects of an object from its internal details. ...
Database Tables
... Changing primary key values once we store the data in tables is a complicated matter because the primary key can appear as a foreign key in many other tables. Incidentally, surrogate keys are almost always less likely to change compared with natural keys. Choose the simplest candidate. The one that ...
... Changing primary key values once we store the data in tables is a complicated matter because the primary key can appear as a foreign key in many other tables. Incidentally, surrogate keys are almost always less likely to change compared with natural keys. Choose the simplest candidate. The one that ...
Transactions
... A transaction might commit after completing all its actions, or it could abort (or be aborted by the DBMS) after executing some actions. A very important property guaranteed by the DBMS for all transactions is that they are atomic. That is, a user can think of a Xact as always executing all its ac ...
... A transaction might commit after completing all its actions, or it could abort (or be aborted by the DBMS) after executing some actions. A very important property guaranteed by the DBMS for all transactions is that they are atomic. That is, a user can think of a Xact as always executing all its ac ...
ppt
... The RSS employs a single lock mechanism to synchronize access to all objects A request to lock an object has several parameters: the name of the object, the mode of the lock (shared/exclusive etc),& the indication of the lock duration-depends on type of the action requested by the user & the lev ...
... The RSS employs a single lock mechanism to synchronize access to all objects A request to lock an object has several parameters: the name of the object, the mode of the lock (shared/exclusive etc),& the indication of the lock duration-depends on type of the action requested by the user & the lev ...