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What is a hash index?
A hash index organizes the search keys, with their associated pointers, into a hash file structure.
In which format database schema is written ? Data base schema is written in the DDL format.
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Given the subsequent relations: vehicle (reg_no, make, colour) Person (eno, name, address) Owner (eno, reg_no) Write expressions
DISADVANTAGES OF RDBMS
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
What are views? Explain how views are different from tables? A view in SQL terminology is a one table in which is derived from other tables. These other tables could be base t
sql is relationally complete-justify
What is a transaction ? The Transaction is a unit of data processing. For instance, many of the transactions at a bank may be withdrawal or deposit of money; transfer of money f
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