Database Design
... • Contains unique columns that are not repeated • Repeated columns lead to confusion & bad data ...
... • Contains unique columns that are not repeated • Repeated columns lead to confusion & bad data ...
forcing updates one row at a time.
... • Prepared execution plans become obsolete if indexes are added or the size of the relation changes. ...
... • Prepared execution plans become obsolete if indexes are added or the size of the relation changes. ...
Slide 1
... • Relations are values; they can thus be "read" but not updated, by definition. (The one thing you can't do to any value is update it. E.g., consider the value that's the integer 3.) • Relvars are variables; they can thus be "read" and updated, by definition. (In fact, "variable" really means "updat ...
... • Relations are values; they can thus be "read" but not updated, by definition. (The one thing you can't do to any value is update it. E.g., consider the value that's the integer 3.) • Relvars are variables; they can thus be "read" and updated, by definition. (In fact, "variable" really means "updat ...
Mid term
... 9. What is the difference between a database schema and a database state? 10. If you were designing a Web-based system to make airline reservations and to sell airline tickets, which DBMS Architecture would you choose from Section 2.5? Why? Why would the other architectures not be a good choice? 11. ...
... 9. What is the difference between a database schema and a database state? 10. If you were designing a Web-based system to make airline reservations and to sell airline tickets, which DBMS Architecture would you choose from Section 2.5? Why? Why would the other architectures not be a good choice? 11. ...
presentation source
... Finishing the Transaction • If the transaction goes successfully then the COMMIT command will commit the changes to the database. • However, if an error occurs the ROLLBACK command can be used to restore the database to its state prior to the transaction. ...
... Finishing the Transaction • If the transaction goes successfully then the COMMIT command will commit the changes to the database. • However, if an error occurs the ROLLBACK command can be used to restore the database to its state prior to the transaction. ...
What is a Database? - Brigham Young University
... What is a Database? • Collection of Dynamic Data – Large • Large of yesteryear now fits on a PC (small DBs) • Many applications require even more (terabytes, petabytes) • Size is sometimes thought of as the distinguishing feature ...
... What is a Database? • Collection of Dynamic Data – Large • Large of yesteryear now fits on a PC (small DBs) • Many applications require even more (terabytes, petabytes) • Size is sometimes thought of as the distinguishing feature ...
Sylabus-CEng553-2010-2.prog
... Database Management Systems, Raghu Ramakrishnan, Johannes Gehrke, McGraw Hill, Third Edition , 2003. Fundamentals of Database Systems by R. Elmasri and S.B. Navathe, Addison-Wesley, Fourth Edition, 2003. Database System and Concepts, A.Silberschatz, H.F. Korth, S.Sudarshan, McGraw Hill, Fourth ...
... Database Management Systems, Raghu Ramakrishnan, Johannes Gehrke, McGraw Hill, Third Edition , 2003. Fundamentals of Database Systems by R. Elmasri and S.B. Navathe, Addison-Wesley, Fourth Edition, 2003. Database System and Concepts, A.Silberschatz, H.F. Korth, S.Sudarshan, McGraw Hill, Fourth ...
Physical Database Design
... Select appropriate file organizations Describe three types of file organization ...
... Select appropriate file organizations Describe three types of file organization ...
Comparisons between C++ and Java (Appendix I)
... security, analyze usage, optimize access, etc. ...
... security, analyze usage, optimize access, etc. ...
Access Lesson 1 Microsoft Access Basics
... The objects work together to store, retrieve, display, and summarize data. The Object Types are: Tables Queries Forms Reports ...
... The objects work together to store, retrieve, display, and summarize data. The Object Types are: Tables Queries Forms Reports ...
Diapositive 1
... Deadlock, Locking schemes, Time-stamp ordering, Multi-version, Optimistic techniques; DB security; Distributed databases; Distributed DBMS, Data fragmentation and replication, Distributed transactions management. Object-Oriented databases. Introducing to new emerging DB technologies and applications ...
... Deadlock, Locking schemes, Time-stamp ordering, Multi-version, Optimistic techniques; DB security; Distributed databases; Distributed DBMS, Data fragmentation and replication, Distributed transactions management. Object-Oriented databases. Introducing to new emerging DB technologies and applications ...
Performance Optimization
... Partitioned Primary Index Performance benefit from data locality is achieved by creating local partitions of data rows within each virtual AMP. Following performance benefits can be achieved by PPI Large performance gain for range queries. Improves load time. Deleting entire partition is ...
... Partitioned Primary Index Performance benefit from data locality is achieved by creating local partitions of data rows within each virtual AMP. Following performance benefits can be achieved by PPI Large performance gain for range queries. Improves load time. Deleting entire partition is ...
Creating Tables
... Queries are used to answer questions about data. They can show fields from one or more tables. Conditions for queries can be specific Queries can be used to calculate totals or averages from information in the table. ...
... Queries are used to answer questions about data. They can show fields from one or more tables. Conditions for queries can be specific Queries can be used to calculate totals or averages from information in the table. ...
Title
... list of options that are similar to what you’ve begun to type. This is similar to how Autofill works in Excel. ...
... list of options that are similar to what you’ve begun to type. This is similar to how Autofill works in Excel. ...
Slide 1
... A very large collection of data A database management system is a software package designed to store and manage data Models real-world ...
... A very large collection of data A database management system is a software package designed to store and manage data Models real-world ...
Link - Faculty
... Keeps all attribute information together. Handles fixed length data. 2-D data represented at conceptual level is mapped to 1-D data structure at physical level. ...
... Keeps all attribute information together. Handles fixed length data. 2-D data represented at conceptual level is mapped to 1-D data structure at physical level. ...