slides
... branch results in referential-integrity constraint violation, the delete “cascades” to the account relation, deleting the tuple that refers to the branch that was deleted. Cascading updates are similar. ...
... branch results in referential-integrity constraint violation, the delete “cascades” to the account relation, deleting the tuple that refers to the branch that was deleted. Cascading updates are similar. ...
Sybase ASE - Surya Prakash
... software manufactured and sold by Sybase, Inc. It was Architect by Dr.Robert Epstein and Tom Haggin.Earlier Sybase called this RDBMS as “Sybase SQL Server. The product was renamed from SQL Server to Adaptive Server Enterprise (ASE) when version 11.5 was released .ASE is a versatile, enterprise-class ...
... software manufactured and sold by Sybase, Inc. It was Architect by Dr.Robert Epstein and Tom Haggin.Earlier Sybase called this RDBMS as “Sybase SQL Server. The product was renamed from SQL Server to Adaptive Server Enterprise (ASE) when version 11.5 was released .ASE is a versatile, enterprise-class ...
Comments on IT/GIS Elements - Society for Hawaiian Archaeology
... Functional Geodatabase: A Geodatabase was submitted prior to the CAP2 report due date, containing all of the existing SHPD GIS data, created prior to 2005. This data has been updated, migrated into a Geodatabase format, made to comply with NPS cultural resource spatial data transfer standards adap ...
... Functional Geodatabase: A Geodatabase was submitted prior to the CAP2 report due date, containing all of the existing SHPD GIS data, created prior to 2005. This data has been updated, migrated into a Geodatabase format, made to comply with NPS cultural resource spatial data transfer standards adap ...
System.Data - Chair of Software Engineering
... The columns are known as “attributes” The row are called “tuples” It is allowable for some values to be missing We can add, remove, or update tuples Each attribute has an underlying domain, or data type ...
... The columns are known as “attributes” The row are called “tuples” It is allowable for some values to be missing We can add, remove, or update tuples Each attribute has an underlying domain, or data type ...
T - Read
... 17.4-3 Immediate Database Modification The scheme allows database modification to be output/reflected to the database on disk while the transaction is still in the active state output/reflect of updated blocks Bx can take place before the transaction commit, i.e. in active state In this scheme, ...
... 17.4-3 Immediate Database Modification The scheme allows database modification to be output/reflected to the database on disk while the transaction is still in the active state output/reflect of updated blocks Bx can take place before the transaction commit, i.e. in active state In this scheme, ...
OO7 Benchmark
... Query Q2: ‘ Choose a range for dates that will contain the last 1% of the dates found in the database’s atomic parts. Retrieve the atomic parts that satisfy this range predicate’ Query Q3: ‘ Choose a range for dates that will contain the last 10% of the dates found in the database’s atomic parts. Re ...
... Query Q2: ‘ Choose a range for dates that will contain the last 1% of the dates found in the database’s atomic parts. Retrieve the atomic parts that satisfy this range predicate’ Query Q3: ‘ Choose a range for dates that will contain the last 10% of the dates found in the database’s atomic parts. Re ...
SSSS - Computer Science
... Horizontal Fragmentation: A horizontal fragment of a relation is a subset of the tuples in that relation. The tuples that belong to the horizontal fragment are specified by a condition on one or more attributes of the relation. A set of horizontal fragments whose conditions C1, C2, ..., Cn include a ...
... Horizontal Fragmentation: A horizontal fragment of a relation is a subset of the tuples in that relation. The tuples that belong to the horizontal fragment are specified by a condition on one or more attributes of the relation. A set of horizontal fragments whose conditions C1, C2, ..., Cn include a ...
What Is a Database?
... Failures may leave database in an inconsistent state with partial updates carried out E.g. transfer of funds from one account to another should either complete or not happen at all ...
... Failures may leave database in an inconsistent state with partial updates carried out E.g. transfer of funds from one account to another should either complete or not happen at all ...
1 - EECS: www-inst.eecs.berkeley.edu
... This exam has seven sections, each with one or more problems. Each problem may be made up of multiple questions. You should read through the exam quickly and plan your time-management accordingly. Before beginning to answer a question, be sure to read it carefully and to answer all parts of every qu ...
... This exam has seven sections, each with one or more problems. Each problem may be made up of multiple questions. You should read through the exam quickly and plan your time-management accordingly. Before beginning to answer a question, be sure to read it carefully and to answer all parts of every qu ...
High-Quality Code - Unit Testing
... Create a database called NorthwindTwin with the same structure as Northwind using the features from DbContext. Find for the API for schema generation in MSDN or in Google. ...
... Create a database called NorthwindTwin with the same structure as Northwind using the features from DbContext. Find for the API for schema generation in MSDN or in Google. ...
Relational Database - MUET-CRP
... many columns of attributes or fields. The same data (along with new and different attributes) can be organized into different tables. Important columns in any relational database's tables will be a column whose entry (customer ID, serial number) can uniquely identify any particular item or record (t ...
... many columns of attributes or fields. The same data (along with new and different attributes) can be organized into different tables. Important columns in any relational database's tables will be a column whose entry (customer ID, serial number) can uniquely identify any particular item or record (t ...
CS2255 Data Base Management Systems Ms.S
... Transaction Concepts - Transaction Recovery – ACID Properties – System Recovery – Media Recovery – Two Phase Commit - Save Points – SQL Facilities for recovery – Concurrency – Need for Concurrency – Locking Protocols – Two Phase Locking – Intent Locking – Deadlock- Serializability – Recovery Isolati ...
... Transaction Concepts - Transaction Recovery – ACID Properties – System Recovery – Media Recovery – Two Phase Commit - Save Points – SQL Facilities for recovery – Concurrency – Need for Concurrency – Locking Protocols – Two Phase Locking – Intent Locking – Deadlock- Serializability – Recovery Isolati ...
literature survey - Computer Science
... cluster interconnect), that work collaboratively as a single system. Clusters allow applications to scale beyond the limits imposed by single node systems when processing loads exceed the capacity of large individual servers. However only Oracle 9i provides real support for clustered configurations, ...
... cluster interconnect), that work collaboratively as a single system. Clusters allow applications to scale beyond the limits imposed by single node systems when processing loads exceed the capacity of large individual servers. However only Oracle 9i provides real support for clustered configurations, ...
The SQL Query Language DML The SQL Query Language DML
... A transaction identifies an elementary unit of work carried out by an application, to which we wish to allocate particular characteristics of reliability and isolation A system that makes available mechanisms for the definition and execution of transactions is called a transaction processing sys ...
... A transaction identifies an elementary unit of work carried out by an application, to which we wish to allocate particular characteristics of reliability and isolation A system that makes available mechanisms for the definition and execution of transactions is called a transaction processing sys ...
slides
... branch results in referential-integrity constraint violation, the delete “cascades” to the account relation, deleting the tuple that refers to the branch that was deleted. Cascading updates are similar. ...
... branch results in referential-integrity constraint violation, the delete “cascades” to the account relation, deleting the tuple that refers to the branch that was deleted. Cascading updates are similar. ...
An Adaptive Replication Environment for a Relational Database
... in distributed systems. In order to accomplish a replication environment in a set of database there must be redundancy of information among all nodes (replicas) within the environment. According to Junior-Alfranio [7], “redundancy is a key element to provide fault-tolerant applications with increase ...
... in distributed systems. In order to accomplish a replication environment in a set of database there must be redundancy of information among all nodes (replicas) within the environment. According to Junior-Alfranio [7], “redundancy is a key element to provide fault-tolerant applications with increase ...
Course Introduction
... Identifying the data to be stored in the database Choosing appropriate structures to represent and store data Communicating to prospective database users to understand the requirements Creating a design that fits user requirements ...
... Identifying the data to be stored in the database Choosing appropriate structures to represent and store data Communicating to prospective database users to understand the requirements Creating a design that fits user requirements ...
presentation source - Courses
... database, DA and DBA are responsible for developing procedures that ensure the integrity and security of the database during the update process. • Specific responsibility for data collection, editing and verification must be assigned • Quality assurance must be practiced to protect and audit the dat ...
... database, DA and DBA are responsible for developing procedures that ensure the integrity and security of the database during the update process. • Specific responsibility for data collection, editing and verification must be assigned • Quality assurance must be practiced to protect and audit the dat ...
Chapter15 - Columbia College
... • Explain the differences between everyday tables and database tables • Use XML to describe the metadata for a table of information, and classify the uses of the tags as identification, affinity, or collection • Understand how the concepts of entities and attributes are used to design a database tab ...
... • Explain the differences between everyday tables and database tables • Use XML to describe the metadata for a table of information, and classify the uses of the tags as identification, affinity, or collection • Understand how the concepts of entities and attributes are used to design a database tab ...
Chapter 10: Creating and Maintaining Geographic Databases
... A relational database comprises a set of tables, each a two-dimensional list (or array) of records containing attributes about the objects under study. Object database management systems (ODBMS) were initially designed to address weaknesses of RDBMS, including the inability to store complete objects ...
... A relational database comprises a set of tables, each a two-dimensional list (or array) of records containing attributes about the objects under study. Object database management systems (ODBMS) were initially designed to address weaknesses of RDBMS, including the inability to store complete objects ...
Database manipulation using Models classes
... development: <<: *default database: db/development.sqlite3 # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: <<: *default database: db/test.sqlite3 produ ...
... development: <<: *default database: db/development.sqlite3 # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: <<: *default database: db/test.sqlite3 produ ...
Chapter 9
... which includes database transactions. Use DDL to implement security and integrity controls. However, some may be defined using DBMS utilities or operating system. © Pearson Education Limited, ...
... which includes database transactions. Use DDL to implement security and integrity controls. However, some may be defined using DBMS utilities or operating system. © Pearson Education Limited, ...
21-metadata - Duke Database Devils
... WAFL and the disk system • WAFL generates a continuous stream of large-chunk contiguous writes to the disk system. – WAFL does not overwrite the old copy of a modified structure: it can write a new copy anywhere. So it gathers them together. ...
... WAFL and the disk system • WAFL generates a continuous stream of large-chunk contiguous writes to the disk system. – WAFL does not overwrite the old copy of a modified structure: it can write a new copy anywhere. So it gathers them together. ...
distributed databases and client-server
... Semijoin: Objective is to reduce the number of tuples in a relation before transferring it to another site. Example execution of Q or Q’: 1. Project the join attributes of Department at site 2, and transfer them to site 1. For Q, 4 * 100 = 400 bytes are transferred and for Q’, 9 * 100 = 900 bytes ar ...
... Semijoin: Objective is to reduce the number of tuples in a relation before transferring it to another site. Example execution of Q or Q’: 1. Project the join attributes of Department at site 2, and transfer them to site 1. For Q, 4 * 100 = 400 bytes are transferred and for Q’, 9 * 100 = 900 bytes ar ...