integrated? 8. What does it mean that database is collection of logically related data? 9. What is DBMS? 10. What are the main categories of database languages? 11. What is view? 12. What is it created for? 13. What are the main benefits of views? 14. List the main generic components of DBMS. 15. What is system catalog? What is the main role of system catalog? 16. What are procedures of DBMS? 17. What kind of people roles do you know? What are they responsibilities? 18. What is the role
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DATA BASE SYSTEM Introduction Data is a virtual organizational resource which is an important input in an information system. This data resource is traditionally called the data base. It is from this data base that data is processed and converted into information to satisfy information needs of the organization. Nowadays we find that the internal and external information resources available to organizations are increasing at a rapid rate‚ due to which data bases are becoming larger and
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issues the query‚ and the result is returned. This feature is known as location transparency. This can become rather complex very quickly‚ and it must be managed by sophisticated software known as a distributed database management system or distributed DBMS. A distributed database is a Data Collection which satisfies the following assumptions: resides on more than one machine with computational power; machines are connected by a communication network; it benefits of a distributed database
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(OwnerLastName‚ OwnerFirstName‚ OwnerPhone‚ OwnerEmail) SERVICE (ServiceID‚ Service‚ Date‚ Charge‚ PetID) 13) Relationships are represented by storing the key values such as pet id and owner phone number in second table column. 14) User‚ database application ‚ DBMS‚ and database 15) A self-describing collection of related tables. 16) It’s important to self-describing the data base because this is the way to know the database structure and content. 17) User data‚ metadata‚ indexes and other overhead data. 18)
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of the relational database management system System R are discussed. 3) Discuss the types of privileges at the account level and those at the relation level. Ans: The concept of an authorization identifier is used to refer‚ to a user account. The DBMS must provide selective access to each relation in the database based on specific accounts. There are two levels for assigning privileges to use the database system: l. The account level: At this level‚ the DBA specifies the particular privileges that
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1.0 Background Public Bank is currently the largest domestic bank in Malaysia by shareholders’ funds. It is well-known in 1966 by its founder and chairman‚ Tan Sri Dato Sri Dr Teh Hong Piow. The bank was planned on the Malaysia Stock Exchange in 1967. The Public Bank Group employs more than 14‚000 people‚ with in Hong Kong and China‚ Cambodia‚ Vietnam‚ Laos and Sri Lanka. Public Bank is one of the most competent banks as reflected by its low cost to revenue ratio in Malaysia. The Public Bank Group
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frequency ranges include in the following frequency subdivision: MF ‚HF‚ VHF‚ UHF‚SHF? MF= 300 kHz-3MHz HF= 3-30MHz VHF= 30-300MHz UHF=300 MHz-3GHz SHF= 3-30 GHz 9. Convert the following powers to their dbm equivalents: (a) p=1W (30 dbm 0 (b) p= 0.001 W (0 dbm) (c) p=0.0001 w (-10 dbm) (d) p=25uW (-16 dbm) 15. Define electrical noise‚ and explain why it is so troublesome to a communications receiver. Electrical noise may be define as any undesired voltages or currents that ultimately end
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7. The only way to access the data in a database is through the DBMS. ANS: T PTS: 1 REF: 7 8. Database programming languages receive all application requests and translate them into the complex operations required to fulfill those requests. ANS: F PTS: 1 REF: 7 9. The DBMS reveals much of the database’s internal complexity to the application programs and users. ANS: F PTS: 1 REF: 7 10. One disadvantage of the DBMS is that it increases the risk of data security breaches. ANS:
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Individual Case Assignment: Harrah’s Entertainment‚ Inc. 1. What are the objectives of the various Database marketing (DBM) programs and are they working? There are two main overall objectives of Harrah’s Database marketing (DBM) programs. First‚ Harrah’s strived to build‚ increase and retain customers’ loyalty to their brand‚ similar to the way people tend to be loyal to their mechanic or hair dresser. The strategy to achieve this goal was to ensure that they crafted and sustained a relationship
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