PPT-Optimized Transaction Time Versioning Inside a Database Eng

Intern Feifei Li Boston University Mentor David Lomet MSR Transaction Time Support Provide access to prior states of a database Auditing the database Querying the historical data Mining the pattern of changes to a database. Dr. Alexandra Fedorova. Lecture . X. : . Transactions. Transactions. A transaction is a collection of actions logically belonging together. To the outside world, a transaction must appear as a . single indivisible operation. Jose M. Peña. jose.m.pena@liu.se. 2. How can several users access and update the database at the same time ? . Real . world. Model. Database. system. Physical . database . Database. management. system. concurrency. . controll. Chapter. 13. “Distributed Systems: . Concepts and Design”. Coulouris. , . Dollimore. , Kindberg. Hanna. Björling, . Stina Fröjd & Liv Sundman. Transaction. A transaction is a point where there is interaction with the database. ITK 478. Fall 2007. Why Monitoring Database Application Behavior is the Best Database Intrusion Detection Method. Why intrusion detection?. Comparing two types:. Monitoring Database Application Behavior. Hekaton": . Developer Deep . Dive. Sunil Agarwal. DBI-B307. Memory optimized table and index structures. Native compilation of business logic in stored procedures. “Hekaton” is fully integrated into SQL Server. Database Recovery. 1 Purpose of Database Recovery. To bring the database into the last consistent state, which existed prior to the failure.. To preserve transaction properties (Atomicity, Consistency, Isolation and Durability).. James C. Corbett et al . OSDI 2012. Presenter: Akshay Ravichandran. Outline. What is Spanner?. Why Spanner?. Implementation. External Consistency. Concurrency Control. Evaluation. Related Work. Future Work. Database System Implementation CSE 507. Some slides adapted from . Navathe. et. Al. and . Silberchatz. et. Al. . Transaction Concept. A . transaction. . is a . unit . of program execution that accesses and possibly updates various data items.. 1 Purpose of Database Recovery. To bring the database into the last consistent state, which existed prior to the failure.. To preserve transaction properties (Atomicity, Consistency, Isolation and Durability).. China20United States30France6Papua New Guinea1India12Sudáfrica1Israel1UAE12 Oman7BahreinAzerbaijan1IranSingaporeKazakhstan4Russia1Australia7Libya1Algeria3South KoreaMalaysia Ireland1Norway2NewZealand Some slides adapted from . Navathe. et. Al. , . Silberchatz. et. Al and . Hector Garcia-Molina . Lock Based Protocols. A lock is a mechanism to control concurrent access to a data item. Data items can be locked in two modes :. Outline. Centralized Database Systems. Server System Architectures. Parallel Systems. Distributed Systems. Network Types. Centralized Database Systems. Run on a single computer system. Single-user system. Adam Backman – President. White Star Software, LLC.. About the speaker. President – White Star Software. One of the oldest and most respected consulting and training companies in the Progress OpenEdge sector. Based on SIGMOD’12 paper by. Alexander Thomson, Thaddeus Diamond, . Shu. -Chun . Weng. , Kun . Ren. , Philip . Shao. ,. Daniel J. . Abadi. By : K. V. Mahesh , . Abhishek. Gupta. Under guidance of: Prof. .