File and Database Management Systems
... Database: a large collection of data an integrated collection of data Database management system: a software system that provides an efficient as well as convenient environment for accessing data in a database. ...
... Database: a large collection of data an integrated collection of data Database management system: a software system that provides an efficient as well as convenient environment for accessing data in a database. ...
OWL2 based Data Cleansing Using Conditional Exclusion Dependencies
... (henceforth denoted CFDs and CINDs) in the context of OWL2. Based on experiments conducted on real world databases [2], we found out that a form of Conditional Exclusion Dependency (CED) may be relevant in capturing more real-life data inconsistencies. To the best of our knowledge, this work is a fi ...
... (henceforth denoted CFDs and CINDs) in the context of OWL2. Based on experiments conducted on real world databases [2], we found out that a form of Conditional Exclusion Dependency (CED) may be relevant in capturing more real-life data inconsistencies. To the best of our knowledge, this work is a fi ...
Create an Electronic Form Solution with DB2 pureXML and Lotus Forms
... WSDL file anymore so we delete it from the form. We can preview the form in the embedded Lotus Forms Viewer and input some test data and submit the form. We switch back to DB2 and with a simple query we can see the XML form data has been inserted into the table; it can be presented in either a tree ...
... WSDL file anymore so we delete it from the form. We can preview the form in the embedded Lotus Forms Viewer and input some test data and submit the form. We switch back to DB2 and with a simple query we can see the XML form data has been inserted into the table; it can be presented in either a tree ...
Module 9: Using Advanced Techniques
... Database Administrator has asked you to become familiar with query execution plans. In order to do this, you need to know how to view estimated and actual execution plans, as well as save execution plans and view them in XML format. You also need to familiarize yourself with implicit and explicit da ...
... Database Administrator has asked you to become familiar with query execution plans. In order to do this, you need to know how to view estimated and actual execution plans, as well as save execution plans and view them in XML format. You also need to familiarize yourself with implicit and explicit da ...
We have finished the LONG to CLOB conversions in University of
... 6. The conversion is done one table a time and can be done online (or live) without affecting those applications that do not use the table being converted. If you want to do the conversion when applications are live, you need to test it in test database and make sure it works for you. Otherwise, the ...
... 6. The conversion is done one table a time and can be done online (or live) without affecting those applications that do not use the table being converted. If you want to do the conversion when applications are live, you need to test it in test database and make sure it works for you. Otherwise, the ...
Chapter 16 - Computer Information Systems
... • Examine logical data model and data dictionary, and produce list of all derived attributes. • Derived attribute can be stored in database or calculated every time it is needed. • Option selected is based on: – additional cost to store the derived data and keep it consistent with operational data f ...
... • Examine logical data model and data dictionary, and produce list of all derived attributes. • Derived attribute can be stored in database or calculated every time it is needed. • Option selected is based on: – additional cost to store the derived data and keep it consistent with operational data f ...
SQL
... • The difference between a view and a table is that views are definitions built on top of other tables (or views), and do not hold data themselves • If a data item is changing in the underlying table, the same change is reflected in the view • A view can be built on top of a single table or multiple ...
... • The difference between a view and a table is that views are definitions built on top of other tables (or views), and do not hold data themselves • If a data item is changing in the underlying table, the same change is reflected in the view • A view can be built on top of a single table or multiple ...
Normalization
... • Thus far in this course we have discussed Entity Relationship Modeling as a technique for designing a database • There exists another important design technique, called Normalization which we shall now cover . • Before we discuss the details, let us first consider the applicability of each of thes ...
... • Thus far in this course we have discussed Entity Relationship Modeling as a technique for designing a database • There exists another important design technique, called Normalization which we shall now cover . • Before we discuss the details, let us first consider the applicability of each of thes ...
How to Build a High-Performance Data Warehouse
... As a result, there are fundamental scalability limits to any database system based on a shareddisk or shared-cache model. Shared Nothing: In a shared-nothing approach, by contrast, each processor has its own set of disks. Data is “horizontally partitioned” across nodes, such that each node has a sub ...
... As a result, there are fundamental scalability limits to any database system based on a shareddisk or shared-cache model. Shared Nothing: In a shared-nothing approach, by contrast, each processor has its own set of disks. Data is “horizontally partitioned” across nodes, such that each node has a sub ...
Relational Databases
... formally-described tables from which data can be accessed or reassembled in many different ways without having to reorganize the database tables. The standard user and application program interface to a relational database is the structured query language (SQL). SQL statements are used both for inte ...
... formally-described tables from which data can be accessed or reassembled in many different ways without having to reorganize the database tables. The standard user and application program interface to a relational database is the structured query language (SQL). SQL statements are used both for inte ...
View File - UET Taxila
... Rapid application development (RAD) Cursory attempt at conceptual data modeling Define database during development of initial prototype Repeat implementation and maintenance activities with ...
... Rapid application development (RAD) Cursory attempt at conceptual data modeling Define database during development of initial prototype Repeat implementation and maintenance activities with ...
Database
... • Registrar database must be internally consistent – Enrolled students must have an entry in student table – Courses must have a name ...
... • Registrar database must be internally consistent – Enrolled students must have an entry in student table – Courses must have a name ...
semester v cm06bba02 – database management system for business
... 20. In an ER model, ……………. is described in the database by storing its data. A) Entity B) Attribute C) Relationship D) Notation 21. A top-to-bottom relationship among the items in a database is established by a A) Hierarchical schema B) Network schema C) Relational Schema D) All of the above 22. ……… ...
... 20. In an ER model, ……………. is described in the database by storing its data. A) Entity B) Attribute C) Relationship D) Notation 21. A top-to-bottom relationship among the items in a database is established by a A) Hierarchical schema B) Network schema C) Relational Schema D) All of the above 22. ……… ...
An Introduction to SQL
... In either Oracle SQL*Plus or Oracle SQL*Plus Worksheet, the DESCRIBE command can be used to list all the columns in a table and their corresponding data types In Access, the Documenter tool is used to produce documentation about tables and other objects stored in a database ...
... In either Oracle SQL*Plus or Oracle SQL*Plus Worksheet, the DESCRIBE command can be used to list all the columns in a table and their corresponding data types In Access, the Documenter tool is used to produce documentation about tables and other objects stored in a database ...
Course Outline
... First part is How to Use a DBMS. This part covers 80% of your syllabus. This part has been related to the design of database system. Like for example how you can represent real world data that is company’s payroll system, student’s information in an examination system, financial systems, etc. into t ...
... First part is How to Use a DBMS. This part covers 80% of your syllabus. This part has been related to the design of database system. Like for example how you can represent real world data that is company’s payroll system, student’s information in an examination system, financial systems, etc. into t ...
Database - Department of Computer Engineering | Anadolu University
... • The database design steps are explained in detail in the next slides • The basic steps are – Open Microsoft Access – Create a database file of format Office 2002-2003 with the extension *.mdb – Create tables in design view – Enter records – Close MS Access ...
... • The database design steps are explained in detail in the next slides • The basic steps are – Open Microsoft Access – Create a database file of format Office 2002-2003 with the extension *.mdb – Create tables in design view – Enter records – Close MS Access ...
Database
... • Multiple – This is used to run a SQL query that returns multiple rows. A Unified CVP-defined Java data structure, the Java class ResultSetList, stores the full result and is placed in session data. If no rows are returned, the ResultSetList object in session data will be empty. For detail about th ...
... • Multiple – This is used to run a SQL query that returns multiple rows. A Unified CVP-defined Java data structure, the Java class ResultSetList, stores the full result and is placed in session data. If no rows are returned, the ResultSetList object in session data will be empty. For detail about th ...
Introduction to ODBMS
... Single inheritance Multiple inheritance Repeated inheritance. A special case of multiple inheritance in which the super class inherit from a common super class. Selective inheritance. ...
... Single inheritance Multiple inheritance Repeated inheritance. A special case of multiple inheritance in which the super class inherit from a common super class. Selective inheritance. ...
ARGOS - My Missouri State
... redundancy, organizes the data efficiently, reduces the potential for anomalies during data operations and improves data consistency. Data is spread out logically into many tables. The NULL SQL keyword is used to represent a missing or unknown value. NULL in SQL represents nothing. The database wher ...
... redundancy, organizes the data efficiently, reduces the potential for anomalies during data operations and improves data consistency. Data is spread out logically into many tables. The NULL SQL keyword is used to represent a missing or unknown value. NULL in SQL represents nothing. The database wher ...
ch13
... York, a query issued at any of the sites that required a join of two or more of the tables could be handled in the standard way by the computer at New York. ...
... York, a query issued at any of the sites that required a join of two or more of the tables could be handled in the standard way by the computer at New York. ...
Lecture 4
... represent entity sets • NOTE: the attributes of the relation named Movies is the same as the attributes of the entity set Movies in the E/R model !!!! • The name of a relation and the set of attributes for a relation is called the schema for that relation ...
... represent entity sets • NOTE: the attributes of the relation named Movies is the same as the attributes of the entity set Movies in the E/R model !!!! • The name of a relation and the set of attributes for a relation is called the schema for that relation ...
Introduction to Database Management
... An example Characteristics of the database approach Actors on the scene Workers behind the scene When not to use a DBMS ...
... An example Characteristics of the database approach Actors on the scene Workers behind the scene When not to use a DBMS ...