give a simple example of physical and logical data
independence
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What is odm database?
In TeraData We have 5 SQL queries, without using BTEQ how can we execute those queries?
What is meant by distributed system?
what is cardinality
What is the use of graph database?
What is ole db source in ssis?
Explain artificial key?
issues involved in modeling and building data werahouses
A design problem was given in which I was supposed to make a design for the data base for a given problem.
Two tables emp(empid,name,deptid,sal) and dept(deptid,deptname) are there.write a query which displays empname,corresponding deptname also display those employee names who donot belong to any dept.
WHAT IS OPM?(IN DETAILED)