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Briefly explain each of the following database terms. Use no more than 2-3 lines for each term.
1. DBMS
2. Update Anomaly
3. Alias (referring to tables in SQL queries)
4. DDL
5. Domian
Determine the Derived attribute to avoid re-computation Each class box consists of an ordered list of attributes and operations, each represented as a next string. We can find
lock and types of lock
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
Probelm: a) In the context of OODBMS, define the following terms with appropriate examples. (i) Object class. (ii) Abstract class. (iii) Aggregation. (iv)
what is 3nf
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
Consistency error : These errors happen due to the inconsistent state of database caused may be due to wrong implementation of commands or in case of a transaction abort. To overc
The ER diagram clearly showing the additional tables you have implemented. SQL table creation scripts for the tables you have set up. SQL scripts showing the sample data you
In which format database schema is written ? Data base schema is written in the DDL format.
Consistency: This property makes sure that a complete transaction implementation takes a database from one consistent state to another consistent state. If the transaction fails e
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