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BCA Database Management System
BCA Database Management System

... 57. An outstanding functionality of SQL is its support for automatic ………… to the target data. A) Programming B) Functioning C) Navigation D) Notification Correct Answer: C 58. ………………… is a special type of integrity constraint that relates two relations & maintains consistency across the relations. A ...
Using Single-Row Functions to Customize Output
Using Single-Row Functions to Customize Output

... The ROUND function can also be used with date functions. You will see examples later in this lesson. DUAL Table The DUAL table is owned by the user SYS and can be accessed by all users. It contains one column, DUMMY, and one row with the value X. The DUAL table is useful when you want to return a va ...
MCSA: SQL Server 2012 - Microsoft Learning Campaign Factory
MCSA: SQL Server 2012 - Microsoft Learning Campaign Factory

... • 87% of database developers indicated that they had acted as a database administrator at some point in the past. • 60% of database developers indicated that they perform database administration tasks as part of their current role, though it is not their primary role. ...
SQL Data Compare 8 0
SQL Data Compare 8 0

... web server. The Magic Widget Company's test team has been testing the new version of the web site. One of the software testers has updated the Contacts table, intending to update one email address. They did not specify a WHERE clause, and consequently have updated the entire table. During the day so ...
No Slide Title
No Slide Title

... E.g. Suppose employees of a bank may have jobs (responsibilities) at multiple branches, with different jobs at different branches. Then there is a ternary relationship set between entity sets employee, job and branch  Relationships between more than two entity sets are rare. Most relationships are ...
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6. xmldb

Oracle_ch13 - Gonzaga University
Oracle_ch13 - Gonzaga University

... different from the one in which it is stored in the underlying tables. ...
Essential Notation for Object-Relational Mapping
Essential Notation for Object-Relational Mapping

... (ENORM), a general purpose notation that represents structural concepts of ObjectRelational Mapping (ORM). The goal of ENORM is to facilitate the design by the clear application of ORM patterns, document mappings with a platform independent notation, and became a repository for model-driven transfor ...
Chapter 3 Notes
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... ©Silberschatz, Korth and Sudarshan ...
612-4
612-4

... a table (view) name a possible list of attribute names (for example, when arithmetic operations are specified or when we want the names to be different from the attributes in the base relations) a query to specify the table contents ...
Believe It or Not: Adding Belief Annotations to Databases
Believe It or Not: Adding Belief Annotations to Databases

... or refute base information [36] without actually changing it. Annotations have been recognized by scientists as an essential feature for new generation database management systems [4, 8, 18], and efficient management of annotations has become the focus of much recent work in the database community [ ...
Strategies for Migrating Oracle Database to AWS
Strategies for Migrating Oracle Database to AWS

... migration. Many Oracle databases tend to be medium to large in size, ranging anywhere from 10 GB to 5 TB, with some as large as 5 TB to 20 TB or more. However, you also might need to migrate smaller databases. This is especially true for phased migrations where the databases are broken up by schema, ...
Data Warehousing Quick Guide
Data Warehousing Quick Guide

... A data warehouses is kept separate from operational databases due to the following reasons: An operational database is constructed for well-known tasks and workloads such as searching particular records, indexing, etc. In contract, data warehouse queries are often complex and they present a general ...
Using BIRT Analytics Loader
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... Extracting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 About extracting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
PowerCenter Connect for Hyperion Essbase 8.1.1 User Guide
PowerCenter Connect for Hyperion Essbase 8.1.1 User Guide

... Other Informatica Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii Visiting Informatica Customer Portal . . . . . . . . . . . . . . . . . . . . . . . . . . xii Visiting the Informatica Web Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii Visitin ...
branch-name
branch-name

... where branch-name = ‘Perryridge’  Delete all accounts at every branch located in Needham city. delete from account where branch-name in (select branch-name from branch where branch-city = ‘Needham’) delete from depositor where account-number in (select account-number from branch, account where bran ...
Introducing WCF
Introducing WCF

... language itself, rather than as string literals embedded in the application code. This means that developers do not have to learn a separate query language. Additionally, LINQ to DataSet enables Visual Studio developers to work more productively, because the Visual Studio IDE provides compile-time s ...
Weak Entity Sets
Weak Entity Sets

... Refers to number of entity sets that participate in a relationship set. Relationship sets that involve two entity sets are binary (or degree two). Generally, most relationship sets in a database system are binary. Relationship sets may involve more than two entity sets. E.g. Suppose employees of a ...
Data Modeling with Graph Databases - DAMA-MN
Data Modeling with Graph Databases - DAMA-MN

... • 1“A graph database management system (G-DBMS) is an online database management system with Create, Read, Update, and Delete (CRUD) methods that expose a graph data model.” ...
New SAS® Performance Optimizations to Enhance Your SAS® Client and Solution Access to the Database
New SAS® Performance Optimizations to Enhance Your SAS® Client and Solution Access to the Database

... performance of SQL queries that access SAS data sets. It should not be surprising that some types of optimizations will enhance both. Therefore, this paper is divided into three parts. Optimizations when querying databases Optimizations when querying SAS data sets Optimizations that give greater per ...
New SQL Performance Optimizations to Enhance Your SAS® Client and Solution Access to the Database
New SQL Performance Optimizations to Enhance Your SAS® Client and Solution Access to the Database

... performance of SQL queries that access SAS data sets. It should not be surprising that some types of optimizations will enhance both. Therefore, this paper is divided into three parts. Optimizations when querying databases Optimizations when querying SAS data sets Optimizations that give greater per ...
Backup/Restore and Replication
Backup/Restore and Replication

... Which recovery model is best for the databases in your environment? This setting depends on the critically of the data and the acceptable data loss in the event of a system failure. SQL Server 2000 offers three recovery models that can be implemented for your databases. The appropriate choice depend ...
EDU 213 Replication Server: Heterogeneous Replication
EDU 213 Replication Server: Heterogeneous Replication

Query Processing Principles & Tuning Queries
Query Processing Principles & Tuning Queries

... L04: Physical Database Design (2) -- 10 ...
New SAS® Performance Optimizations to Enhance Your SAS® Client and Solution Access to the Database
New SAS® Performance Optimizations to Enhance Your SAS® Client and Solution Access to the Database

... When SAS clients and solutions work with external databases, they depend on SQL queries being passed down and executed within those databases. Typically, this is accomplished only if the SQL query is free of syntax specific to SAS that the external databases cannot understand. As mentioned in the in ...
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Entity–attribute–value model

Entity–attribute–value model (EAV) is a data model to describe entities where the number of attributes (properties, parameters) that can be used to describe them is potentially vast, but the number that will actually apply to a given entity is relatively modest. In mathematics, this model is known as a sparse matrix. EAV is also known as object–attribute–value model, vertical database model and open schema.
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