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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:
What is primary Key Explain? Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, chang
Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e
What is the meaning of Data Independence ?
1. Which model is used to store data in tree structures Ans: Hierarchical model is used to store data in tree structures
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
What is a candidate key? Minimal super keys are known as candidate keys.
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
Describe the nested-loop join and block-nested loop join. Ans: The block nested- loop join algorithm is as described below: for every block B r of relation R do beg
Synonyms It allows short names or alternative names for objects. Example : CREATE SYNONYM D30 FOR EMPD30; Now if we give command:
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
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