Explain what are sparse columns?


No Answer is Posted For this Question
Be the First to Post Answer

Post New Answer

More SQL Server Interview Questions

How can I create a report based on a query? : sql server management studio

0 Answers  


This question asked during interview, 2) At the end of each month, a new table is created for each bank that contains monthly metrics consolidated at the account level. The table naming convention is bankX_YYYYMM where X represents the numeric designation of the bank and YYYYMM indicates the 4 digit year and 2 digit month. The tables contain the following fields: name data type description account text account number registered boolean indicates whether the account is registered num_trans integer number of transactions made during the time period spend numeric(9,2) total spend during the time period a) Write a SQL query that will display the total number of transactions and total spend for "Bank1" during the 4th quarter of 2009. b) Write a SQL query that will display the total number of transactions and total spend at "Bank1" and "Bank2", broken out by registered vs. non-registered accounts, during January 2010 not sure what is correct answer and how to solve?

0 Answers   TCS,


What is the difference between temp table and table variable?

8 Answers   Microsoft,


Can I delete event logs?

0 Answers  


What is join query?

0 Answers  






What is the difference between rank and dense_rank?

0 Answers  


Explain timestamp datatype?

0 Answers  


Can we use trigger new in before insert?

0 Answers  


What is clustered primary key?

0 Answers  


Suppose you want to implement the many-to-many relationships while designing tables. How would you do it?

0 Answers  


How to Create Login and User through query in Sql server 2005.and also how to delete Login and User through query?

2 Answers  


Characterize join and name diverse sorts of joins?

0 Answers  


Categories