Transactions complete

After completing this chapter you should be able to: Explain what an account is and how it helps in the recording process, define debits and credits and explain their use in recording business transactions, identify the basic steps in the recording process,...and other contents.

52p yenhinguyen0504 06-04-2017 51 4   Download

After completing this lesson, you should be able to do the following: Describe the concept of automaticundo management Create and maintain the automatic managedundo tablespace Set the retention period Use dynamic performance views to check rollback segment performance Reconfigure and monitor rollback segments Define the number and sizes of rollback segments Allocate rollback segments to transactions

36p trinh02 28-01-2013 44 6   Download

Incomplete Recovery Incomplete recovery reconstructs the database to a prior point in time (before the time of the failure). Note: This situation results in the loss of data from transactions committed after the time of recovery. This data will need to be reentered manually if required. Perform this recovery only when absolutely necessary. Incomplete recovery can be a difficult and time-consuming operation.

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Backup Terminology Whole Database Backup Whole database backup (also known as whole backup) refers to a backup of all datafiles and the control file of the database. Whole backups can be performed when the database is closed or open. This is the most common method of backup. The whole backup that is taken when the database is closed (after the database is shut down using the NORMAL, IMMEDIATE, or TRANSACTIONAL options) is called a consistent backup.

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Recall: logging methods provide reconstructing the DB to reflect the result of committed transactions locking (or validation) methods provide serializability of transactions Problem yet uncovered: "dirty data" data written by an uncommitted transaction (to buffers or to disk) may lead to inconsistency, if read by others

22p trinh02 23-01-2013 59 6   Download

Today an ever increasing number of social and financial services can be provided over data networks. Individuals and businesses alike initiate and complete a large number of commercial transactions over the Internet or other specially constructed networks. Home banking, home shopping, video on demand, buying and selling of stocks and other financial securities can now be undertaken from almost any part of the world where an access to a local network can be achieved.

23p tienvovan 11-09-2010 71 6   Download

Internetworking continues to be one of the fastest developing high-technology fields today. Businesses and individuals have come to depend on the Internet for completing a wide range of their daily operations and activities. It is no secret that Cisco Systems has capitalized on the Internet’s potential, doing many of their business operations and functions across the Web, including over 85% of their annual sales transactions across the Internet. For these reasons, the World Wide Web and the field of internetworking continue to grow at accelerated speeds.

296p erjokoi 22-07-2010 123 10   Download

Memcachedb is a distributed key-value storage system designed for persistent. A complete memcached, but *NOT* a cache solution: Memcached is good enough for cache. *NO* expiration: For memcache protocol compatible, still reserved, but we do nothing. Totally for persistent: Transaction, replication, we do our best to achieve persistent.

118p hanguyen 14-07-2009 249 71   Download

Factors driving demand: Strong economic growth, FDI growth, WTO access, new multi-national companies, expansion of existing multi-national companies, Vietnam companies upgrading, safety & quality Issues. Grade A office rental rates reflects upward momentum and growing demand vis-à-vis tight supply...

76p quanghai 17-03-2009 1210 798   Download