Chapter 10
... • A foreign key allows Visual Basic to link (or join) two tables from a relational database • When the two tables Cities and Countries from Megacities.accdb are joined based on the foreign key Cities.country, the result is the table in the next slide. • The record for each city is expanded to show i ...
... • A foreign key allows Visual Basic to link (or join) two tables from a relational database • When the two tables Cities and Countries from Megacities.accdb are joined based on the foreign key Cities.country, the result is the table in the next slide. • The record for each city is expanded to show i ...
CS206 --- Electronic Commerce
... 1. There can be only one PRIMARY KEY for a relation, but several UNIQUE attributes. 2. No attribute of a PRIMARY KEY can ever be NULL in any tuple. But attributes declared UNIQUE may have NULL’s, and there may be several tuples with NULL. ...
... 1. There can be only one PRIMARY KEY for a relation, but several UNIQUE attributes. 2. No attribute of a PRIMARY KEY can ever be NULL in any tuple. But attributes declared UNIQUE may have NULL’s, and there may be several tuples with NULL. ...
Corporate PPT Template
... Rewrite all the books for Enterprise DBA’s A whole new set of books possible for DBA’s managing “small to medium size” databases ...
... Rewrite all the books for Enterprise DBA’s A whole new set of books possible for DBA’s managing “small to medium size” databases ...
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727 PP 15-18 www.iosrjournals.org
... distributed. The database is divided into database fragments, thus local queries can be resolved by local databases rather than all queries being targeted to one centralised database. Thus, the query Processing time is reduced and performance is increased. e) Ease of growth: To add more clients to s ...
... distributed. The database is divided into database fragments, thus local queries can be resolved by local databases rather than all queries being targeted to one centralised database. Thus, the query Processing time is reduced and performance is increased. e) Ease of growth: To add more clients to s ...
Installation work stage, interfaces
... similar to the ADSL port database. • A new VoIP number is chosen. • The subscriber information is then entered into the VoIP server using management software. This can also be done using SQL. • A configuration file for the customer premises equipment (adapter) must be made. The input needed for this ...
... similar to the ADSL port database. • A new VoIP number is chosen. • The subscriber information is then entered into the VoIP server using management software. This can also be done using SQL. • A configuration file for the customer premises equipment (adapter) must be made. The input needed for this ...
Database systems: achievements and opportunities
... he history of database system research is one of exceptional productivity and startling economic impact. Barely 20 years old as a basic science research field, database research has fueled an information services industry estimated at $10 billion per year in the U.S. alone. Achievements in database ...
... he history of database system research is one of exceptional productivity and startling economic impact. Barely 20 years old as a basic science research field, database research has fueled an information services industry estimated at $10 billion per year in the U.S. alone. Achievements in database ...
Avi Silberschatz Michael Stonebraker Jeff Ullman Editors
... he history of database system research is one of exceptional productivity and startling economic impact. Barely 20 years old as a basic science research field, database research has fueled an information services industry estimated at $10 billion per year in the U.S. alone. Achievements in database ...
... he history of database system research is one of exceptional productivity and startling economic impact. Barely 20 years old as a basic science research field, database research has fueled an information services industry estimated at $10 billion per year in the U.S. alone. Achievements in database ...
Chapter 11
... disaster – key role of servers requires backup plans: redundant servers or shared servers ...
... disaster – key role of servers requires backup plans: redundant servers or shared servers ...
Unannotated Slides - Stanford Lagunita
... Steps in creating and using a (relational) database 1. Design schema; create using DDL 2. “Bulk load” initial data 3. Repeat: execute queries and modifications ...
... Steps in creating and using a (relational) database 1. Design schema; create using DDL 2. “Bulk load” initial data 3. Repeat: execute queries and modifications ...
Presentation - C-SPIN
... – A testing regime can only tell us whether the code happens to pass a limited set of tests. Testing does not tell us whether the code is well constructed, i.e.: • whether we can impute from the design whether the code will pass tests that we can’t afford to run • whether new staff can be easily ass ...
... – A testing regime can only tell us whether the code happens to pass a limited set of tests. Testing does not tell us whether the code is well constructed, i.e.: • whether we can impute from the design whether the code will pass tests that we can’t afford to run • whether new staff can be easily ass ...
Exchange 2007 CCR
... through built-in performance dashboards and trending reports Find answers quickly and accurately through a single unified search engine ...
... through built-in performance dashboards and trending reports Find answers quickly and accurately through a single unified search engine ...
original
... A wide variety of tools is available for parsing, browsing and querying XML documents/data ...
... A wide variety of tools is available for parsing, browsing and querying XML documents/data ...
Photoshop: Creative Uses
... Used to locate text values when you can’t remember the exact text or word; placeholder ...
... Used to locate text values when you can’t remember the exact text or word; placeholder ...
Overview of what`s new for developers in SQL Server
... Windows and SQL authentication (SSL only) Stored Proc can return result as DataSet Compatible with mid-tier programming model ...
... Windows and SQL authentication (SSL only) Stored Proc can return result as DataSet Compatible with mid-tier programming model ...
Beginning Java
... Exercises: Database Access Using JDBC In this exercise, we will implement a graphical front end to provide user access to a database. We will use the capability of the ResultSet class to scroll through records in both forward and backward directions. The ResultSet class is a table of data representi ...
... Exercises: Database Access Using JDBC In this exercise, we will implement a graphical front end to provide user access to a database. We will use the capability of the ResultSet class to scroll through records in both forward and backward directions. The ResultSet class is a table of data representi ...
UT HackMISA - AnilDesai.net
... • Benefits • Least management overhead • Most cost-efficient and easiest to setup • Most (all?) on overhead is managed by the cloud provider ...
... • Benefits • Least management overhead • Most cost-efficient and easiest to setup • Most (all?) on overhead is managed by the cloud provider ...
Exercises: Data Definition and Data Types
... Id – unique number for every person there will be no more than 231-1 people. (Auto incremented) Name – full name of the person will be no more than 200 Unicode characters. (Not null) Picture – image with size up to 2 MB. (Allow nulls) Height – In meters. Real number precise up to 2 digits after floa ...
... Id – unique number for every person there will be no more than 231-1 people. (Auto incremented) Name – full name of the person will be no more than 200 Unicode characters. (Not null) Picture – image with size up to 2 MB. (Allow nulls) Height – In meters. Real number precise up to 2 digits after floa ...
Clean Air Markets - http://www - Environmental Integrity Project
... Some states maintain emissions inventory data online. Texas provides one good example of a state with such a database. Information on emissions can be found in an Adobe format on the Texas Commission on Environmental Quality’s website that is presorted either by account number, county, SIC code, or ...
... Some states maintain emissions inventory data online. Texas provides one good example of a state with such a database. Information on emissions can be found in an Adobe format on the Texas Commission on Environmental Quality’s website that is presorted either by account number, county, SIC code, or ...
Kite - Pages - University of Wisconsin
... – No need to materialize all CNs – Sometimes, even partially materializing a CN is enough – Estimate score intervals for CNs, then branch and bound search ...
... – No need to materialize all CNs – Sometimes, even partially materializing a CN is enough – Estimate score intervals for CNs, then branch and bound search ...