database systems using oracle by nilesh shah
Using Oracle Clusterware to Protect A Single Instance Oracle Database 11g pot
Ngày tải lên: 30/03/2014, 13:20
Database Systems Engineer Examination.pdf
... encrypted by the sender using a signature key so that the meaning of the clear text cannot be understood by any unrelated parties. d) The sender adds a constant to the clear text and encrypts it using ... respect to the database operations? a) The average recovery time from journal information will increase by a factor of approximately 2. b) The database capacity will increase by a factor of ... GROUP BY order_No c) SELECT order_No, AVG (SUM (quantity)) FROM order_detail GROUP BY order_No d) SELECT order_No FROM order_detail WHERE SUM (quantity) > 1000 GROUP BY order_No...
Ngày tải lên: 24/08/2012, 15:44
Database Systems Engineer Examination.pdf
... After the database restored by entire database backup, it can be restored to a specific time using the acquired update log and roll-forward processing. (iii) The time required for recovery using ... interrupted by a failure. Here, interruption by failure means any interruption caused by reason other than trouble in the program itself, such as errors caused by problems in input data or database ... Backup/Restore feature (i) Database backup and restoration can be done for the entire database or for individual tables. (ii) “Entire database backup” saves the entire database on backup media....
Ngày tải lên: 24/08/2012, 15:44
Database Systems Engineer Examination.pdf
... management Units used in plans By major class and month, & by major class, by store and by month By product and by week By SKU and by week By SKU and by store, by week Values used in plans ... sales performance by major class, by store and by month for the last two years. (2) Product sales plans The Product Management Department prepares sales plans by product and by week, on a quantity ... performance by SKU and by week, in order to forecast future sales performance and review purchase plans on a weekly basis. (4) Store sales plans Each store determines its own sales plan by SKU and by...
Ngày tải lên: 24/08/2012, 15:44
The 8051 microcontroller and embedded systems using assembly and c 2nd ed
Ngày tải lên: 04/10/2013, 19:10
Inclusion of new types in relational database systems
... replaces the indicated tuple by a new one. build (descriptor, keyname, OPR) Of course it is possible to build a new access method for a relation by successively inserting tuples using the insert procedure. ... one is currently required to simulate these data types and operators using the basic data types and operators pro- vided by the DBMS at substantial inefficiency and complexity. Even in business ... event types by writing UNDO and REDO procedures for the events and making entries in a system relation holding event information. Such an interface is similar to the one pro- vided by CICS [IBM80]. 13 composition...
Ngày tải lên: 22/10/2013, 10:15
Database Design Using Entity-Relationship Diagrams
... students in database classes and to help database practitioners in understanding how to arrive at a definite, clear database design using an entity relationship (ER) diagram. In designing a database ... Although the Barker /Oracle- like model is quite popular, it is implementation dependent upon knowledge of relational databases. The Barker /Oracle model maps directly to a relational database; there ... Database Systems , 3rd ed., Addison-Wesley, Reading, MA, 2000. Maier, D. The Theory of Relational Databases , Computer Science Press, Rockville, MD, 1983. Norman, R.J. Object-Oriented Systems...
Ngày tải lên: 22/10/2013, 10:15
Digital Sound Recorder: A case study on designing embedded systems using the UML notation.
... current task In E 1 s. 6 Enter stand -by mode a. Switch off the display In E 1 s. 7 Wake up, user presses a button while in stand -by mode. a. Leave stand -by mode, power up display, etc. In E 1 ... updates the internal representation of the time, by using the nextSecond method. When the Time object wraps around, then the date is updated using the nextDay method. The class diagram for the ... all the peripherals and enter the stand -by mode. When the user charges the battery, the system will leave the stand -by mode. While the system is in stand -by mode, the messages are still kept in...
Ngày tải lên: 24/10/2013, 23:15
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