Tài liệu Managing Risk In Oranizations pdf

... most useful tools in the risk manager’s toolbox. By categorizing risk events according to the two dimensions of risk, risk analysts can determine readily whether individual risk events warrant ... problems by forcing them to look at things in an unconventional light. 78 MANAGING RISK IN ORGANIZATIONS Frame.c05 6/16/03 12:52 PM Page 78 The employment of attribute analysis i...

Ngày tải lên: 10/12/2013, 14:15

... integrity constraints in relational theory are entity integrity, referential integrity and domain integrity. Entity integ- rity insures that the object represented by a row in a non- temporal ... business data in a row is no longer in effect. In other words, the date which is one clock tick past the last date on which the business data in a row is in effect. Asr-beg. Assertion b...

Ngày tải lên: 24/12/2013, 02:16

... or their origins. Deferred assertions are the result of applying deferred trans- actions to the database. Instead of holding on to maintenance Part 3 DESIGNING, MAINTAINING AND QUERYING ASSERTED ... those tables. If ERwin is used as the data modeling tool, then a set of ERwin 162 Part 3 DESIGNING, MAINTAINING AND QUERYING ASSERTED VERSION DATABASES Occupied and Represented In subsequent dis...

Ngày tải lên: 21/01/2014, 08:20

... will continue on, and will update the database. In doing so, it will begin by preserving the original state of the version or versions about to be changed, doing this by withdrawing them into past ... integrity or a referential integrity constraint, it will reject that transaction. In response, the AVF will stop processing the temporal transaction, undo Managing Time in Relational Dat...

Ngày tải lên: 21/01/2014, 08:20

... temporal deletes as well. In addition, instead of requiring the user to write trans- actions in a proprietar y format required by an Application Programming Interface (API) we were developing, the AVF now ... episode. Splitting an Episode {Splitting} an episode is a little more interesting than either {shortening an episode backwards} or {shortening an episode for- wards}. The reason is t...

Ngày tải lên: 21/01/2014, 08:20

... available. By internalizing these datasets within the production tables whose data they contain, we eliminate the costs of managing them, including the costs of recovering from mistakes made in managing ... is currently asserted as being currently in effect, this view also contains one row per object. In addition, since, at every point in time, the original table contains rows tha...

Ngày tải lên: 21/01/2014, 08:20

... thing to note here is that we get to this starting point in the search of the index without doing a scan. Our strategy is to get to the desired result using an index with little or no scanning. Once ... fil- tering on effective begin date, the index will be scanned for the 356 Chapter 15 OPTIMIZING ASSERTED VERSIONING DATABASES remaining criteria including assertion begin date. And the same...

Ngày tải lên: 26/01/2014, 08:20

... (pipeline datasets, for short) are points at which data comes to rest along the inflow pipelines whose termination points are production tables, or along the outflow pipelines whose points of origin ... begin date would be hundreds or even thousands of years in the future. In business databases, there is little risk of such assertions falling into currency by the mere passage of time. •...

Ngày tải lên: 26/01/2014, 08:20

... lifetimes of real-estate investments and the horizons of investors away from the originating institutions and their debtors without impairing the incentives of originating institutions to be careful ... changes in financing conditions, namely changes in interest rates and changes in the availability of housing finance. 56 By contrast, from 1994 to 2000, the value of the index had...

Ngày tải lên: 17/02/2014, 21:20

... household skills lessons in primary schools (boys would be trained in woodworking). Household education, including basic cooking, started in a few schools in the 1870s, aiming at the formation of ... to explain the advantages— heating the food within minutes, while not burning the wrapping—microwaves were quickly integrated into Belgian kitchens after 1985. A bourgeois kitchen, late n...

Ngày tải lên: 13/12/2013, 11:15