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What is the Difference Between Primary and Foreign Key?
What are the differences between DDL, DML and DCL in SQL?
What does REVERT do in SQL Server 2005?
If you're given a raw data table, how would perform etl (extract, transform, load) with sql to obtain the data in a desired format?
how would you write a sql query to compute a frequency table of a certain attribute involving two joins? What changes would you need to make if you want to order by or group by some attribute? What would you do to account for nulls?
how would you improve etl (extract, transform, load) throughput?
define and explain the differences between clustered and non-clustered indexes.
what are the different ways to return the rowcount of a table?
what is datawarehouse?
We are updating a field in sql and alter the row also.after giving the commit command the system is crashed.what will happen to the commands given,whether it will update and alter the table or not?
how will add additional conditions in sql?
What are SSL and TSL protocols?
What is the difference between Normalization and De-normalization?
What does COMMIT command do?
Write a program to fetch first 10 records from a file?
