Chapter 9: E-Commerce Solutions (COMMERCE SERVERS)
... Although commerce servers have come a long way in the last few years, some still lack support for necessities such as back orders or contracts that require purchases at specific intervals. Also proprietary architectures often make it difficult to customize some commerce offerings, and back-end integ ...
... Although commerce servers have come a long way in the last few years, some still lack support for necessities such as back orders or contracts that require purchases at specific intervals. Also proprietary architectures often make it difficult to customize some commerce offerings, and back-end integ ...
Slide 1
... Determine the signature of a specific stored procedure in the database. Identify the primary(PK)/foreign(FK) keys for a given table. ...
... Determine the signature of a specific stored procedure in the database. Identify the primary(PK)/foreign(FK) keys for a given table. ...
Performance Modeling and Access Methods for Temporal
... time-varying aspects of the real world. The need for temporal support has been recognized for over ten years, and recent progress in secondary storage technology is making such support practically feasible. There are three distinct kinds of time in databases: transaction time, valid time, and user-d ...
... time-varying aspects of the real world. The need for temporal support has been recognized for over ten years, and recent progress in secondary storage technology is making such support practically feasible. There are three distinct kinds of time in databases: transaction time, valid time, and user-d ...
Chapter 19: Distributed Databases
... Alternative to centralized scheme: each site prefixes its own site ...
... Alternative to centralized scheme: each site prefixes its own site ...
The Java Series: Introduction to JDBC
... • Stands for Java Database Connectivity • It’s an API for programmers to access databases in an homogeneous way. • With JDBC all databases are accessed in the same way. • This isolates programs from details of databases. • To use JDBC with any database you have to know: – Standard SQL – What is your ...
... • Stands for Java Database Connectivity • It’s an API for programmers to access databases in an homogeneous way. • With JDBC all databases are accessed in the same way. • This isolates programs from details of databases. • To use JDBC with any database you have to know: – Standard SQL – What is your ...
Synchronous replication control
... view, but the changes cannot be pushed back to the master, and lost if the materialized view refreshes. ...
... view, but the changes cannot be pushed back to the master, and lost if the materialized view refreshes. ...
slides - cse.sc.edu
... Sensitive information is used in selection condition but not returned to the user. Example: Salary: secret, Name: public ...
... Sensitive information is used in selection condition but not returned to the user. Example: Salary: secret, Name: public ...
The Implementation and Performance Evaluation of the ADMS Query Optimizer: Integrating
... without optimization may result in a query plan even worse than the one optimized from the original query without utilizing any cached results. Therefore, it is necessary to consider optimization at the same time of query matching. The rst time where query matching and optimization are integrated w ...
... without optimization may result in a query plan even worse than the one optimized from the original query without utilizing any cached results. Therefore, it is necessary to consider optimization at the same time of query matching. The rst time where query matching and optimization are integrated w ...
datapumpdoag2009
... • Requires EXP_FULL_DATABASE privilege • All objects (with their dependents) are exported Restriction removed in Oracle11g Release 2 ...
... • Requires EXP_FULL_DATABASE privilege • All objects (with their dependents) are exported Restriction removed in Oracle11g Release 2 ...
userhome.brooklyn.cuny.edu
... • Condition that occurs when two transactions wait for each other to unlock data – T1 = access data items X and Y – T2 = access data items Y and X • If T1 has not unlocked data item Y, T2 cannot begin • If T2 has not unlocked data item X, T1 cannot continue • T1 and T2 each wait for the other to unl ...
... • Condition that occurs when two transactions wait for each other to unlock data – T1 = access data items X and Y – T2 = access data items Y and X • If T1 has not unlocked data item Y, T2 cannot begin • If T2 has not unlocked data item X, T1 cannot continue • T1 and T2 each wait for the other to unl ...
Effective Management of Location Dependent Continuous Queries in Mobile Environment
... Advances in wireless and mobile computing environments allow a mobile user to perform within a wide range of applications. For example, mobile users need to pull data about unfamiliar places or local life styles related to their location. Furthermore, a mobile user may be interested in getting locat ...
... Advances in wireless and mobile computing environments allow a mobile user to perform within a wide range of applications. For example, mobile users need to pull data about unfamiliar places or local life styles related to their location. Furthermore, a mobile user may be interested in getting locat ...
Oracle Migration Workbench Reference Guide for MySQL 3.22, 3.23
... MySQL is an open-source relational database management system (RDBMS). It uses a client/server architecture and is a multi-threaded, multi-user database server. It was designed specifically to be a fast server; therefore, it does not provide many of the features provided by other relational database ...
... MySQL is an open-source relational database management system (RDBMS). It uses a client/server architecture and is a multi-threaded, multi-user database server. It was designed specifically to be a fast server; therefore, it does not provide many of the features provided by other relational database ...
Slide 1 - MI-OAUG
... • Order date – All pulled into other dimensions, only the order number remains ...
... • Order date – All pulled into other dimensions, only the order number remains ...
Why Transactions?
... Transitionally consistent database as of the beginning of the transaction Requires session-level setting Readers do not lock data Reduces deadlocks But at a cost of write-write conflicts ...
... Transitionally consistent database as of the beginning of the transaction Requires session-level setting Readers do not lock data Reduces deadlocks But at a cost of write-write conflicts ...
Client/Server Architectures for Business
... architecture look for the application programmer quite like a central system architecture. This reduces complexity of application development, because most of the distributed programming is done on the system level, so that the application programmer is not confronted with it. Besides it prevents co ...
... architecture look for the application programmer quite like a central system architecture. This reduces complexity of application development, because most of the distributed programming is done on the system level, so that the application programmer is not confronted with it. Besides it prevents co ...
DBC-e06-Chapter-06-PPT
... Copyright © 2013 Pearson Educations, Inc. Publishing as Prentice Hall ...
... Copyright © 2013 Pearson Educations, Inc. Publishing as Prentice Hall ...
XML Data Model
... Relational metadata is stored in the database Database control tables fully define the structure of the database. Without the DBMS metadata the contents of the database are worthless. Completely self-contained (not reusable) Tables are structured, each column is a “bucket” for a specific kind of dat ...
... Relational metadata is stored in the database Database control tables fully define the structure of the database. Without the DBMS metadata the contents of the database are worthless. Completely self-contained (not reusable) Tables are structured, each column is a “bucket” for a specific kind of dat ...
Oracle 11g -Snapshot Standby and Active Data Guard - oracle-info
... standby received from the primary database. It determines which log files are required to resynchronize the standby database and immediately begins transmitting them using additional ARCH processes. Simultaneously, at the very next log switch, the LNS will attempt and succeed in making a connectio ...
... standby received from the primary database. It determines which log files are required to resynchronize the standby database and immediately begins transmitting them using additional ARCH processes. Simultaneously, at the very next log switch, the LNS will attempt and succeed in making a connectio ...
System design for integration of fault Oscar Tholander
... As technology advances we get new ways to use and interact with software. In recent years there has been a massive change in how we consume software on a daily basis with the introduction of the concept cloud computing (also know as “the cloud”), tablets and smart phones. Tablets and smart phones ha ...
... As technology advances we get new ways to use and interact with software. In recent years there has been a massive change in how we consume software on a daily basis with the introduction of the concept cloud computing (also know as “the cloud”), tablets and smart phones. Tablets and smart phones ha ...
Incremental Update on Sequential Patterns in Large
... re-mining demands more time than the previous mining process since the appending increases the size of the database. Although there are some incremental techniques for updating association rules [4, 5], few research has been done on the updating of sequential patterns, which is quite different. Asso ...
... re-mining demands more time than the previous mining process since the appending increases the size of the database. Although there are some incremental techniques for updating association rules [4, 5], few research has been done on the updating of sequential patterns, which is quite different. Asso ...
Oracle_ch11
... • The STDDEV and VARIANCE functions are used to perform statistical analyses on a set of data • GROUPING SETS operations can be used to perform multiple GROUP BY aggregations with a single query • The CUBE extension of the GROUP BY calculates aggregations for all possible combinations or groupings o ...
... • The STDDEV and VARIANCE functions are used to perform statistical analyses on a set of data • GROUPING SETS operations can be used to perform multiple GROUP BY aggregations with a single query • The CUBE extension of the GROUP BY calculates aggregations for all possible combinations or groupings o ...
Oracle Archive Log with Data Guard
... Sanovi™ believes the information in this publication is accurate as of its publication date. The information is subject to change without notice. COPYRIGHT ...
... Sanovi™ believes the information in this publication is accurate as of its publication date. The information is subject to change without notice. COPYRIGHT ...
How to Use SQL Calls to Secure Your Web Site
... application development. Some of those software, however, are being used without enough security verification. Depending on the programming language and type of database engine, software may be exploited by attackers through vulnerability in software-specific specifications or character encoding err ...
... application development. Some of those software, however, are being used without enough security verification. Depending on the programming language and type of database engine, software may be exploited by attackers through vulnerability in software-specific specifications or character encoding err ...
Triggers PowerPoint
... • Starting with SQL Server 2005, you also have the ability to create DDL triggers. With DDL triggers you can now log every DROP TABLE and any other type of DDL event. • This means you have the ability to allow the execution of DDL only under special conditions or circumstances; – Furthermore, you ca ...
... • Starting with SQL Server 2005, you also have the ability to create DDL triggers. With DDL triggers you can now log every DROP TABLE and any other type of DDL event. • This means you have the ability to allow the execution of DDL only under special conditions or circumstances; – Furthermore, you ca ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.