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plz suggest me the books for the preparation of NIC written
exam.
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Answer Posted / praveen
Galgotia Computer Science Question Bank Fifth Edition
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Explain partial key?
When should you not use firebase?
Can you create a database in word?
Explain normalization in one line?
What is sharded database?
What are the advantages of normalizing a database.
Why do we need distributed database?
What is the relationship that exists inside in E-R diagram?
What are the validations performed on the source data? If there are junk data available in the source data, how to eliminate it?
What advantages does DBMS have over traditional file systems?
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 are different types of data models available? Explain with example?
Explain various types of locks in a transaction? Which is better and why?
What is a sequence? Explain it with one example?
5. Explain about relational algebra.
