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The Assessment page has a link to download a conceptual model, and a list of data.
You are to map this conceptual model, and create the database in Oracle using your own DDL. Then load your database with the list of data on the assessment page.
Then you are required to write SQL statements to perform the objectives listed below:
You will need to hand in ONE script which:
Let us now make the E-R diagram for the student database as per the explanation given in the previous section. We can also states the overall logical structure of a database usi
read-set(T) : Each data items that are read by a transaction T Timestamps : for all transaction T, the start-time and the end time are reserved for all the three phases.
Define instance and schema? Instance: Collection of data kept in the data base at a particular moment is known as an Instance of the database. Schema: The o
how draw er diagram
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Explain the Role of a database administrator a. Defining the Schema The DBA describes the schema which consists of the structure of the data in the application. The DBA
wh
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
Performance of Various Concurrency Control Mechanisms
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