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Write a query that display ename annual salary and comm from emp table
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Explain the concept of a data model ? Data Model - Model is an abstraction procedure which hides irrelevant details although highlighting details relevant to the application
A Structure of a dependency diagram
sql is relationally complete-justify
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a picto
What does Aggregation mean?
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following
Group By clauses • It is used to group database tuples on the basis of definite common attribute value like as employees of a department. WHERE clause still can be used
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