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Case sensitivity of column names in SQL Server Importing source
Case sensitivity of column names in SQL Server Importing source

... retrieving data from the SQL Server tables using those column names if the case does not match the way they are defined in SQL Server. SQL Server will allow mixed case for column names, but the Oracle database assumes all uppercase for column names. It is possible to query a mixed-case column name i ...
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... SQL is the most popular database language and has commands that enable it to be used for both the manipulation and definition of relational databases because of its English-based syntax. Oracle was one of the first companies to release RDBMS software that used an Englishbased structured query langua ...
Collective Entity Resolution In Relational Data
Collective Entity Resolution In Relational Data

MySQL Manager User Guide
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... MySQL Manager is a web based MySQL client that allows you to create and manipulate a maximum of two MySQL databases. MySQL Manager is designed for advanced users. Knowledge of relational databases and SQL is required in order to use this application efficiently. MySQL Manager is best used for creati ...
Discovering the Semantics of Relational Tables through Mappings *
Discovering the Semantics of Relational Tables through Mappings *

... tables (such as hasSsn(x1 , ssn)) and the obvious foreign key constraints from binary to unary tables, then one could in fact try to apply directly the Clio algorithm to the problem. The desired mapping formula from Example 1.1 would not be produced for several reasons: (i) Clio [18] works by taking ...
Introduction to SQL
Introduction to SQL

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Chapter 8

... Also called declarative languages. ...
DDLesson11Fa10
DDLesson11Fa10

... primary and unique keys.  Relationships: Relationships at the supertype level transform as usual. Relationships at subtype level are implemented as optional foreign-key columns.  Integrity constraints: A check constraint is needed to ensure that for each particular subtype, all columns that come f ...
A Multistrategy Approach to Relational Knowledge Discovery in
A Multistrategy Approach to Relational Knowledge Discovery in

... schemata, the hypothesis space in a real-world application can still be very high, because tile immberof attributes (determining p) and attrilmte vahms i usually high. This leads to the demand of restricting tile numberof attributes and attribute values used for learning. Someattributes are of parti ...
Unit 3- Database Connectivity A database is an organized collection
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... (a)TYPE_FORWARD_ONLY: The result set cannot be scrolled; its cursor moves forward only, from before the first row to after the last row. The rows contained in the result set depend on how the underlying database generates the results. That is, it contains the rows that satisfy the query at either th ...
SAS/ACCESS® Software
SAS/ACCESS® Software

... For whom is SAS/ACCESS® software designed? SAS/ACCESS is designed for organizations that need to bring different source system data together into a cohesive and unified environment. It’s used by data management professionals and business analysts who are responsible for accessing data in support of ...
Lecture 5: Active Databases
Lecture 5: Active Databases

... 2. Disable temporarily all integrity constraints recorded against the table 3. Loop for each row in the table  Execute all BEFORE ROW triggers  Execute the SQL statement against the row and perform integrity constraint checking of the data  Execute all AFTER ROW triggers ...
PL/SQL Introduction
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... PL/SQL variables and cursors have attributes, which are properties that let you reference the datatype and structure of an object without repeating its definition. Database columns and tables have similar attributes, which you can use to ease maintenance. %TYPE The %TYPE attribute provides the datat ...
Database Security: What Students Need to Know
Database Security: What Students Need to Know

... Database security is a growing concern evidenced by an increase in the number of reported incidents of loss of or unauthorized exposure to sensitive data. As the amount of data collected, retained and shared electronically expands, so does the need to understand database security. The Defense Inform ...
Database System Architectures
Database System Architectures

... computation time, if the degree of parallelism is high. Interference: Processes accessing shared resources (e.g., system bus, disks, or locks) compete with each other, thus spending time waiting on other processes, rather than performing useful work. Skew: Increasing the degree of parallelism increa ...
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[2016-6-NEW]1Z0-060 VCE Dumps 161q Free Offered by
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... *The CREATE DATABASE ... ENABLE PLUGGABLE DATABASE SQL statement creates a new CDB. If you do not specify the ENABLE PLUGGABLE DATABASE clause, then the newly created database is a non-CDB and can never contain PDBs. Along with the root (CDB$ROOT), Oracle Database automatically creates a seed PDB (P ...
Data integration
Data integration

... ➡ 〈uppercase names ≈ lower case names, true, 1.0〉 ➡ 〈uppercase names ≈ capitalized names, true, 1.0〉 ➡ 〈capitalized names ≈ lower case names, true, 1.0〉 ➡ 〈DB1.ASG ≈ DB2.WORKS_IN, true, 0.8〉 ...
A Functional View of Multilevel Databases
A Functional View of Multilevel Databases

... user interface manager checks the validity of the query specification. The query modifier will perform the query modification. The modified query is still in FQL. The query translator will translate the query into an internal representation so that lazy evaluation techniques can be applied to this i ...
Welcome! [www.web
Welcome! [www.web

... The JDBC-to-ODBC bridge driver connects Java programs to Microsoft ODBC (Open Database Connectivity) data sources. The Java 2 Software Development Kit from Sun Microsystems, Inc. includes the JDBC-to-ODBC bridge driver (sun.jdbc.odbc.JdbcOdbcDriver). This driver typically requires the ODBC driver to ...
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A Database Approach for Raster Data Management inGeographic

... an increasingly important role in a modern geographic information system (GIS). Especially with the popularity of the Internet and the recent trend of web-based services, more and more companies and organizations are collaborating with each other in an effort to build the infrastructure for sharing ...
A Database Approach for Raster Data Management inGeographic
A Database Approach for Raster Data Management inGeographic

... an increasingly important role in a modern geographic information system (GIS). Especially with the popularity of the Internet and the recent trend of web-based services, more and more companies and organizations are collaborating with each other in an effort to build the infrastructure for sharing ...
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Lecture Note 9

... • A department store runs a multiuser DBMS on a local area network file server which does not enforce concurrency control. One customer has a balance due of $250 when the following three transactions related to this customer were processed at the same time: –Payment of $250 –Purchase on credit of $1 ...
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marked - Kansas State University

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A Taste of SQL
A Taste of SQL

... underlying files and most carefully written programs are immune to new variables in the data sets they process. SQL has been implemented by many people, on many hardware platforms. Many new database solutions offer a form of SQL, and existing vendors are retro fitting relational-query capabilities t ...
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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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