DbSchema Tutorial with Introduction in SQL Databases
... One table may show in different layouts or in none of them. Adding tables to layout can be done by drag & drop or by pressing the foreign key icon beside columns. ...
... One table may show in different layouts or in none of them. Adding tables to layout can be done by drag & drop or by pressing the foreign key icon beside columns. ...
PowerPoint-Präsentation - CMS – Cross Media Solutions
... is approximately 500 times bigger than the surface Web. At each Deep Web database, you enter a query and get back a Web page created dynamically (on-the-spot) specific to your search. These dynamic Web pages are not linked since they didn’t exist before your query and cease to exist after being sent ...
... is approximately 500 times bigger than the surface Web. At each Deep Web database, you enter a query and get back a Web page created dynamically (on-the-spot) specific to your search. These dynamic Web pages are not linked since they didn’t exist before your query and cease to exist after being sent ...
original - Kansas State University
... OLAP Implementation The earliest OLAP systems used multidimensional arrays in memory to store data cubes, and are referred to as multidimensional OLAP (MOLAP) systems. OLAP implementations using only relational database features are called relational OLAP (ROLAP) systems Hybrid systems, which ...
... OLAP Implementation The earliest OLAP systems used multidimensional arrays in memory to store data cubes, and are referred to as multidimensional OLAP (MOLAP) systems. OLAP implementations using only relational database features are called relational OLAP (ROLAP) systems Hybrid systems, which ...
Microsoft Access 2010
... General Project Guidelines – for Queries • Identify the fields – which fields from which tables? • Identify restrictions – does the query include ALL records or a restricted group? • Determine whether special order is required – should you sort the data? • Determine whether more than one table is r ...
... General Project Guidelines – for Queries • Identify the fields – which fields from which tables? • Identify restrictions – does the query include ALL records or a restricted group? • Determine whether special order is required – should you sort the data? • Determine whether more than one table is r ...
Overview of Import from Excel Spreadsheets
... The final step is to create the drawings and add the components to the respective PID document. This is a redraw process. The user will create the new PID in the Plant Project and then start drawing the components using the OpenPlant Power PID tools. When prompted for a tag the user can use the Brow ...
... The final step is to create the drawings and add the components to the respective PID document. This is a redraw process. The user will create the new PID in the Plant Project and then start drawing the components using the OpenPlant Power PID tools. When prompted for a tag the user can use the Brow ...
For what are used constructor methods? What actions they can
... what are their advantages and disadvantages? For specialised database systems, in addition to the universal database system is created the extension (extension). As such the extension "Oracle Spatial" is implemented in Oracle DBMS? Where it is stored and how it is used? Why in the Oracle Spatial geo ...
... what are their advantages and disadvantages? For specialised database systems, in addition to the universal database system is created the extension (extension). As such the extension "Oracle Spatial" is implemented in Oracle DBMS? Where it is stored and how it is used? Why in the Oracle Spatial geo ...
Document
... Ready tests for transactional integrity - Atomicity, Isolation and Consistency - REPEATABLE READ - Durability and recovery ...
... Ready tests for transactional integrity - Atomicity, Isolation and Consistency - REPEATABLE READ - Durability and recovery ...
Database Management System - Al
... Object-oriented Databases (OODBMS) (Cont.) • benefits to object-oriented databases are • The ability to mix and match reusable objects provides incredible multimedia capability • Healthcare organizations, for example, can store, track, and recall CAT scans, X-rays, electrocardiograms and many other ...
... Object-oriented Databases (OODBMS) (Cont.) • benefits to object-oriented databases are • The ability to mix and match reusable objects provides incredible multimedia capability • Healthcare organizations, for example, can store, track, and recall CAT scans, X-rays, electrocardiograms and many other ...
Database Systems - a.thanop somprasong
... Centralized database: data located at a single site Distributed database: data distributed across several different sites ...
... Centralized database: data located at a single site Distributed database: data distributed across several different sites ...
Chapter 1 - High Point University
... When a table does not contain any repeating groups A simple database that contains a single table of information An object that is used to view, add, delete, update, and print records in the database. A form can be based on a table or a query. A column in a table is considered functionally dependent ...
... When a table does not contain any repeating groups A simple database that contains a single table of information An object that is used to view, add, delete, update, and print records in the database. A form can be based on a table or a query. A column in a table is considered functionally dependent ...
Web-Based Information Systems Topics
... must be translated into database operations (e.g. into SQL queries or updates). – Standards like ODBC and JDBC make it possible to do this in a portable way. ...
... must be translated into database operations (e.g. into SQL queries or updates). – Standards like ODBC and JDBC make it possible to do this in a portable way. ...
Lab 6
... We can see that the employee “John Park” has been added to the Sample database. In this exercise we learned how to retrieve and insert data from a database using the JDBC API. Included with the application, there are also functions for the DELETE and UPDATE statements. Feel free to read through the ...
... We can see that the employee “John Park” has been added to the Sample database. In this exercise we learned how to retrieve and insert data from a database using the JDBC API. Included with the application, there are also functions for the DELETE and UPDATE statements. Feel free to read through the ...
Selecting Data from a Database
... Note: This bat file executes a SELECT * FROM employee SQL statement on the database. It then lists all the records returned by the statement. 24. Verify that Alex Pink has been inserted into the database. ...
... Note: This bat file executes a SELECT * FROM employee SQL statement on the database. It then lists all the records returned by the statement. 24. Verify that Alex Pink has been inserted into the database. ...
Teaching Scheme Business Information Technology/Software
... query optimisation particularly important in a DDB environment? What are the alternative ways of joining distibuted tables? How does a semi-join work? Reading: Bell(Chapter 5), Silberschatz(Chapter 19), Ozsu(Chapter 7, 8 and 9), Connolly(Chapter 22 and 23) Extendible Hashing 1(SMcK) Lecture Review — ...
... query optimisation particularly important in a DDB environment? What are the alternative ways of joining distibuted tables? How does a semi-join work? Reading: Bell(Chapter 5), Silberschatz(Chapter 19), Ozsu(Chapter 7, 8 and 9), Connolly(Chapter 22 and 23) Extendible Hashing 1(SMcK) Lecture Review — ...
Object-Oriented Development in a Relational World
... The obvious question here is “How does DeKlarit know what the primary keys are?” It follows a simple rule – all attributes within a project that refer to the same thing must have the same name. If you use RefereeID anywhere in any structure, that attribute will always refer back to the primary key o ...
... The obvious question here is “How does DeKlarit know what the primary keys are?” It follows a simple rule – all attributes within a project that refer to the same thing must have the same name. If you use RefereeID anywhere in any structure, that attribute will always refer back to the primary key o ...
Optimal Chapter 6 - Cal State LA
... If you are going to properly determine what caused a customer to either respond or not respond to your promotion, then the characteristics that you examine must be reflective of what the customer looked like at the time you promoted them. Think of this file as a “snap shot” of each customer’s record ...
... If you are going to properly determine what caused a customer to either respond or not respond to your promotion, then the characteristics that you examine must be reflective of what the customer looked like at the time you promoted them. Think of this file as a “snap shot” of each customer’s record ...
Data Warehousing
... • The last point is – Bad: long running TX consume all available memory – DB might need to generate temporary areas on disk – Good: with short running TX, buffer manager has high degree of freedom when to flush blocks Ulf Leser: Datenbanksysteme II, Sommersemester 2005 ...
... • The last point is – Bad: long running TX consume all available memory – DB might need to generate temporary areas on disk – Good: with short running TX, buffer manager has high degree of freedom when to flush blocks Ulf Leser: Datenbanksysteme II, Sommersemester 2005 ...
data-models
... The External Model (continued) • Advantages: – Easy to identify specific data required to support each business unit’s operations – Facilitates designer’s job by providing feedback about the model’s adequacy – Creation of external models helps to ensure security constraints in the database design – ...
... The External Model (continued) • Advantages: – Easy to identify specific data required to support each business unit’s operations – Facilitates designer’s job by providing feedback about the model’s adequacy – Creation of external models helps to ensure security constraints in the database design – ...
